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4NEC2?
On Sun, 14 Oct 2018 12:04:52 -0700 (PDT)
Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 7:33:10 PM UTC+1, Jeff Liebermann wrote: It might help to understand why some bands use LSB while others USB. In the early daze of sideband radio, the common IF frequency was 9MHz. The radios had only one sideband filter. With one filter, it was cheaper and easier to mix and up convert in the transmitter. So, to save the cost of adding a second filter, the bands below 9MHz were designated as LSB and the band above 9MHz became USB. Eventually, radios were built with two sideband filters, and this was no longer important. As usual, the legacy technology remained in place to haunt the survivors to this day. I've seen this explanation before, but it doesn't make sense. A 9MHz USB signal mixed with a 5.0 to 5.5MHz VFO will produce mixing products in the 80m and 20m bands - but both will be upper sideband. crosspost reinstated. |
4NEC2?
On Sun, 14 Oct 2018 20:25:28 +0100
Brian Howie wrote: In message , Bernie writes On Sun, 14 Oct 2018 05:59:35 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 12:57:21 PM UTC+1, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spite sent a message from the other side: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spite sent a message from the other side: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike lied: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn’t reach further than a quarter mile. That’s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. What STC actually asked was which sideband he should use for RTTY on 40m. Which is, of course, an interesting question as it's not something that was covered in any exam, current or previous. My $0.02 worth is that it doesn't matter, since an RTTY operator will know that he needs to invert the received tones if he sees a string of "46464646" instead of "RYRYRYRY" Here's what was asked, and it wasn't posted no archive, or deleted, or any of the other weak bull**** that Burt has bean spraying around: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips?" https://groups.google.com/forum/#!or...-radio/MjriIIU zuHA/_ityI76x0IMJ Good old Burt. For the record all the data modes including RTTY use upper sideband all the way up from 136KHz . CW A1A is also upper sideband but there can be advantages to be had by swapping to LSB to avoid interference. F1A beacons seem to be a law unto themselves. You can get quite good at reading inverted morse. Amateur RTTY uses inverted tones and a different narrower shift compared with commercial RTTY. I don't know why your getting onto Steve about this as none of it is the radio amateur courses or even online anywhere, unless some smarty pants comes along and tells me it is. Ok it's in here for WSJT It was Burt who was doing the 'getting onto' and when it wasn't going well for him he introduced a new plotline about mysterious disappearing posts and the character defects that could be at the root of the disappearing posts. I joined it to point out that the posts are still there and that Burt is a liar and a ****ing idiot. |
4NEC2?
On 14/10/2018 20:30, brian wrote:
In message , Gareth's Downstairs Computer writes Whereas such antenna predictors seem to feature in amateur usage, does anyone, anywhere, in the world of amateur radio have an understanding of the underlying principles involved in predicting the performance of antennae, or have we all, regrettably, become indistinguishable from consumerist CBers or beginner licensees? 4NEC2 and EZNEC areÂ* just a fancy front and back ends for NEC2 (and NEC4) Engines. Program description is here :- https://ntrl.ntis.gov/NTRL/dashboard...tail/ADA956129. xhtml. Thanks for the heads up, Brian, but a quick glance suggests that some revision might be necessary of my 3rd year uni textbook, "Fields and Waves in Communications Electronics" by Ramo, Whinnery and Van Duzer. ISTR it to be an excellent book explaining complicated things in words of one syllable, but 46 years down the line, I might have a more romantic memory of it in reality :-) |
4NEC2?
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4NEC2?
On Sun, 14 Oct 2018, Roger Hayter wrote:
Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn't reach further than a quarter mile. That's all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? I hope I am as open-minded as the next person, but it is really stretching credulity to accept that anyone could actually find that alleged fact remotely interesting. To be fair, it isn't law which sideband is used, but "commaon practice". That actually is about operating, and is a counter example, it doesn't say anything about technical skill. There have to be endless things about "operating practice" that should be on an exam long before "which sideband to use on 40m?" Though I do wonder why someone wouldn't just flip the sideband switch if something isn't working right. Michael |
4NEC2?
On Sun, 14 Oct 2018, Jeff Liebermann wrote:
On Sun, 14 Oct 2018 08:50:13 +0000, Spike wrote: Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That?s all you need to know about him and and his ability with radio. For what it's worth, I don't know which sideband to use on 40m. That's because I don't operate much on 40m and don't have such details memorized. I use a wall chart with the appropriate modes, frequencies, sub-bands, and dedicated frequencies listed. Oddly, I was able to pass the US extra-class license without knowing or studying any of this. I believe I posted the story previously, but it's interesting enough to repeat again. There was a time when SSB transceiver used mixing schemes so it would always be the "right" sideband when you switched bands. Even rigs that had a lsb/usb switch would sometimes color code so you knew which sideband was "right" for each band. I suspect more recent rigs, with synthesizers and computers, they surely default to the "right" sideband when you switch bands. As I recall, when I was a kid, I knew from reading which sideband got used on which band, SSB was hardly knew then but it was still "new" enough that it got talked about in the magazines. But with an SP-600 and a tuneable BFO, I had to tune the BFO both sides of zerobeat to figure out which worked for which sideband, no convenient crystal controlled BFO marked "lsb/usb". If there was a question on the tests about this sort of thing, it would likely show some frequencies and you'd have to figure out after heterodyning which sideband you were on. Michael |
4NEC2?
On Sun, 14 Oct 2018, Jeff Liebermann wrote:
On Sun, 14 Oct 2018 18:50:34 +0100, Brian Morrison wrote: On Sun, 14 Oct 2018 10:42:24 -0700 Jeff Liebermann wrote: For what it's worth, I don't know which sideband to use on 40m. For data modes it's just about all USB, and has been for some time. But it's easy to see why people can get confused and wonder what they set up incorrectly. No need to beat anyone up about it, just explain if you're asked. I don't think I'm beating up on anyone, but if an explanation is required, I can do that. It might help to understand why some bands use LSB while others USB. In the early daze of sideband radio, the common IF frequency was 9MHz. The radios had only one sideband filter. With one filter, it was cheaper and easier to mix and up convert in the transmitter. So, to save the cost of adding a second filter, the bands below 9MHz were designated as LSB and the band above 9MHz became USB. Eventually, radios were built with two sideband filters, and this was no longer important. As usual, the legacy technology remained in place to haunt the survivors to this day. Actually with filter rigs, they used only one filter. Military rigs might use two filters, obviously especially if they did ISB, and there must have been some ham rigs, high end, that used two filters, but generally it was one, and the BFO crystal was switched. There's more to this story, but I can't remember at the moment. Michael |
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4NEC2?
On Sun, 14 Oct 2018 08:50:13 +0000
Spike wrote: Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That’s all you need to know about him and and his ability with radio. Burt, I think that could've gone a bit better, Burt. Burt, Thanks, Burt. |
4NEC2?
On Sun, 14 Oct 2018 11:12:14 -0700, Jeff Liebermann
wrote: (...) However, if you plan to do more than that, some test equipment might be useful. Since you prefer a minimalist approach to test equipment, as an alternative to your light bulb, may I suggest a return loss bridge: https://www.google.com/search?q=return+loss+bridge&tbm=isch Note that there are several basic designs and configurations but all are fairly simple and easy to construct. Note that these are NOT the same as directional couplers. You can purchase them on eBay: https://www.ebay.com/sch/i.html?_nkw=return+loss+bridge There are tutorials on YouTube: https://www.youtube.com/results?search_query=return+loss+bridge I have three of these made by Texscan: https://www.qsl.net/n9zia/wireless/rtrn_loss-pics.html https://www.qsl.net/n9zia/rlb/texscan.png and a few that I've built for microwave frequencies: http://pe2er.nl/wifiswr/ and one for HF: http://www.dicks-website.eu/return%20loss%20bridge_part1/part1.html http://www.dicks-website.eu/return%20loss%20bridge_part2/part2.html http://www.dicks-website.eu/return%20loss%20bridge_part2/part3.html http://www.dicks-website.eu/return%20loss%20bridge_part2/part4.html http://www.dicks-website.eu/return%20loss%20bridge_part5/part5.html A return loss bridge is similar to a VNA except that it does not produce numbers for the real (resistive) and imaginary (reactive) components of the antenna impedance. It just produces the return loss compared to a reference termination resistor, which can then be translated into the VSWR. To use it, you need a minimum of an RF signal generator and a voltmeter or oscilloscope. I prefer to sweep the frequency range of interest, so I use an RF sweep generator, and display the result on an oscilloscope. With this arrangement, you can tune your antenna without requiring a light bulb. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
4NEC2?
In message , Gareth's Downstairs Computer
writes On 14/10/2018 20:30, brian wrote: In message , Gareth's Downstairs Computer writes Whereas such antenna predictors seem to feature in amateur usage, does anyone, anywhere, in the world of amateur radio have an understanding of the underlying principles involved in predicting the performance of antennae, or have we all, regrettably, become indistinguishable from consumerist CBers or beginner licensees? 4NEC2 and EZNEC are* just a fancy front and back ends for NEC2 (and NEC4) Engines. Program description is here :- https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/ADA956129. xhtml. Thanks for the heads up, Brian, but a quick glance suggests that some revision might be necessary of my 3rd year uni textbook, "Fields and Waves in Communications Electronics" by Ramo, Whinnery and Van Duzer. ISTR it to be an excellent book explaining complicated things in words of one syllable, but 46 years down the line, I might have a more romantic memory of it in reality :-) I've got mine here. We used to call it Ramo Whinnery and Bamboozle. From the inscription in the fly leaf, it looks like I used it in 3rd year too. Mine has one of the equations printed upside down, which threw me a bit. Brian -- Brian Howie |
4NEC2?
On 14/10/2018 23:14, Ralph Mowery wrote:
I think the tests have gotten away from the technical part of ham radio and are now geared more to the operating practices. It is never too late to correct such an egregious mistake, for operating as such is CB Radio whereas Amateur / Ham Radio is a whole-life technical pursuit. |
4NEC2?
On 15/10/2018 04:49, brian wrote:
In message , Gareth's Downstairs Computer writes On 14/10/2018 20:30, brian wrote: In message , Gareth's Downstairs Computer writes Whereas such antenna predictors seem to feature in amateur usage, does anyone, anywhere, in the world of amateur radio have an understanding of the underlying principles involved in predicting the performance of antennae, or have we all, regrettably, become indistinguishable from consumerist CBers or beginner licensees? Â*4NEC2 and EZNEC areÂ* just a fancy front and back ends for NEC2 (and NEC4) Engines. Â*Program description is here :- https://ntrl.ntis.gov/NTRL/dashboard/searchResults/titleDetail/ADA956129. xhtml. Thanks for the heads up, Brian, but a quick glance suggests that some revision might be necessary of my 3rd year uni textbook, "Fields and Waves in Communications Electronics" by Ramo, Whinnery and Van Duzer. ISTR it to be an excellent book explaining complicated things in words of one syllable, but 46 years down the line, I might have a more romantic memory of it in realityÂ* :-) I've got mine here. We used to call it Ramo Whinnery and Bamboozle. From the inscription in the fly leaf, it looks like I used it in 3rd year too. Mine has one of the equations printed upside down, which threw me a bit. Simon Ramo is an undoubted expert in that "field", but probably deals only in that area. Much more difficult for we polymaths who must have a working knowledge of so many more subjects, eg, the low level programming of computers. |
4NEC2?
"Jeff" wrote in message ... I wired up a neg ground rev counter to my pos earth 1963 mini in 1969 by insulating the live case of the rev counter and earthing the live terminal...worked well ..... Most of us just reversed the battery etc. and flashed the dynamo. Jeff I didn't .... |
4NEC2?
"Gareth's Downstairs Computer" wrote in message ... On 14/10/2018 23:14, Ralph Mowery wrote: I think the tests have gotten away from the technical part of ham radio and are now geared more to the operating practices. It is never too late to correct such an egregious mistake, for operating as such is CB Radio whereas Amateur / Ham Radio is a whole-life technical pursuit. I have been persuing an HRO500 since the 60's .......... |
4NEC2?
On 14/10/2018 20:59, Bernie wrote:
On Sun, 14 Oct 2018 20:25:28 +0100 Brian Howie wrote: In message , Bernie writes On Sun, 14 Oct 2018 05:59:35 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 12:57:21 PM UTC+1, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spite sent a message from the other side: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spite sent a message from the other side: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike lied: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn’t reach further than a quarter mile. That’s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. What STC actually asked was which sideband he should use for RTTY on 40m. Which is, of course, an interesting question as it's not something that was covered in any exam, current or previous. My $0.02 worth is that it doesn't matter, since an RTTY operator will know that he needs to invert the received tones if he sees a string of "46464646" instead of "RYRYRYRY" Here's what was asked, and it wasn't posted no archive, or deleted, or any of the other weak bull**** that Burt has bean spraying around: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips?" https://groups.google.com/forum/#!or...-radio/MjriIIU zuHA/_ityI76x0IMJ Good old Burt. For the record all the data modes including RTTY use upper sideband all the way up from 136KHz . CW A1A is also upper sideband but there can be advantages to be had by swapping to LSB to avoid interference. F1A beacons seem to be a law unto themselves. You can get quite good at reading inverted morse. Amateur RTTY uses inverted tones and a different narrower shift compared with commercial RTTY. I don't know why your getting onto Steve about this as none of it is the radio amateur courses or even online anywhere, unless some smarty pants comes along and tells me it is. Ok it's in here for WSJT It was Burt who was doing the 'getting onto' and when it wasn't going well for him he introduced a new plotline about mysterious disappearing posts and the character defects that could be at the root of the disappearing posts. I joined it to point out that the posts are still there and that Burt is a liar and a ****ing idiot. But Burt is an excellent troller. Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. |
4NEC2?
On 15/10/2018 01:20, Jeff Liebermann wrote:
On Sun, 14 Oct 2018 11:12:14 -0700, Jeff Liebermann wrote: Since you prefer a minimalist approach to test equipment, as an alternative to your light bulb, may I suggest a return loss bridge: https://www.google.com/search?q=return+loss+bridge&tbm=isch Note that there are several basic designs and configurations but all are fairly simple and easy to construct. Note that these are NOT the same as directional couplers. To use it, you need a minimum of an RF signal generator and a voltmeter or oscilloscope. I prefer to sweep the frequency range of interest, so I use an RF sweep generator, and display the result on an oscilloscope. With this arrangement, you can tune your antenna without requiring a light bulb. So, let me get this right. By employing a return-loss bridge, an RF signal generator, and either a voltmeter or an oscilloscope, you can get results that a distant station can't distinguish from those obtained by using a torch bulb? Given your ability to estimate the performance of an antenna by looking at it rather than employ modelling methods, I would have though you would be sympathetic to the merits of the torch bulb approach. -- Spike "Nearly all men can stand adversity, but if you want to test a man's character, give him an internet group to manage" |
4NEC2?
On 14/10/2018 22:01, Ralph Mowery wrote:
In article , lid says... On Sun, 14 Oct 2018 12:04:52 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 7:33:10 PM UTC+1, Jeff Liebermann wrote: It might help to understand why some bands use LSB while others USB. In the early daze of sideband radio, the common IF frequency was 9MHz. The radios had only one sideband filter. With one filter, it was cheaper and easier to mix and up convert in the transmitter. So, to save the cost of adding a second filter, the bands below 9MHz were designated as LSB and the band above 9MHz became USB. Eventually, radios were built with two sideband filters, and this was no longer important. As usual, the legacy technology remained in place to haunt the survivors to this day. I've seen this explanation before, but it doesn't make sense. A 9MHz USB signal mixed with a 5.0 to 5.5MHz VFO will produce mixing products in the 80m and 20m bands - but both will be upper sideband. When the 9 MHz is mixed with the 5 mhz the 20 meter signal is upper sideband. The 80 meter signal is inverted and becomes the lower sideband NOT usb. Years ago when ssb was just starting out on the ham bands this made 80 meters and 20 meters easy and inexpensive compaired to other methods. So it was decided on by hams to use 40 metes and lower frequencies as LSB and 20 meters and above as USB. Then the government stepped in for the 5 and 10 MHz bands and dictated what to use. For other reasons most digital is in the USB mode for all bands except for RTTY. RTTY is usually used in the LSB mode for all ham bands, but can be used in the USB mode if the tones are inverted. The commercial RTTY was usually inverted from the normal ham RTTY. "Geoff" has long had a 'difficult' relationship with HF. -- Spike "Nearly all men can stand adversity, but if you want to test a man's character, give him an internet group to manage" |
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4NEC2?
On Mon, 15 Oct 2018 12:17:09 +0000
Spike wrote: On 14/10/2018 22:01, Ralph Mowery wrote: In article , lid says... On Sun, 14 Oct 2018 12:04:52 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 7:33:10 PM UTC+1, Jeff Liebermann wrote: It might help to understand why some bands use LSB while others USB. In the early daze of sideband radio, the common IF frequency was 9MHz. The radios had only one sideband filter. With one filter, it was cheaper and easier to mix and up convert in the transmitter. So, to save the cost of adding a second filter, the bands below 9MHz were designated as LSB and the band above 9MHz became USB. Eventually, radios were built with two sideband filters, and this was no longer important. As usual, the legacy technology remained in place to haunt the survivors to this day. I've seen this explanation before, but it doesn't make sense. A 9MHz USB signal mixed with a 5.0 to 5.5MHz VFO will produce mixing products in the 80m and 20m bands - but both will be upper sideband. When the 9 MHz is mixed with the 5 mhz the 20 meter signal is upper sideband. The 80 meter signal is inverted and becomes the lower sideband NOT usb. Years ago when ssb was just starting out on the ham bands this made 80 meters and 20 meters easy and inexpensive compaired to other methods. So it was decided on by hams to use 40 metes and lower frequencies as LSB and 20 meters and above as USB. Then the government stepped in for the 5 and 10 MHz bands and dictated what to use. For other reasons most digital is in the USB mode for all bands except for RTTY. RTTY is usually used in the LSB mode for all ham bands, but can be used in the USB mode if the tones are inverted. The commercial RTTY was usually inverted from the normal ham RTTY. "Geoff" has long had a 'difficult' relationship with HF. We've only got your word for that and I think we all know the value of your words by now. |
4NEC2?
On Mon, 15 Oct 2018 12:16:14 +0000, Spike
wrote: On 15/10/2018 01:20, Jeff Liebermann wrote: On Sun, 14 Oct 2018 11:12:14 -0700, Jeff Liebermann wrote: Since you prefer a minimalist approach to test equipment, as an alternative to your light bulb, may I suggest a return loss bridge: https://www.google.com/search?q=return+loss+bridge&tbm=isch Note that there are several basic designs and configurations but all are fairly simple and easy to construct. Note that these are NOT the same as directional couplers. To use it, you need a minimum of an RF signal generator and a voltmeter or oscilloscope. I prefer to sweep the frequency range of interest, so I use an RF sweep generator, and display the result on an oscilloscope. With this arrangement, you can tune your antenna without requiring a light bulb. So, let me get this right. By employing a return-loss bridge, an RF signal generator, and either a voltmeter or an oscilloscope, you can get results that a distant station can't distinguish from those obtained by using a torch bulb? No. Per my previous rant, if your intent is "to be able to transmit signals intended to be received by another station", then a light bulb will suffice at producing the desired result. If your intent is to design the best possible antenna, then you'll need something better. If you just want to talk to someone, almost any kind of RF metering device is sufficient. There have been plenty of accounts of comparing various types of antennas. For example, PSK Reporter is a good way to perform such a test, where one can actually see the effects of antenna changes. https://pskreporter.info/pskmap.html What I've found is that such side by side comparisons do not account for variations in propagation, path, interference, local noise, time of day, position of the moon, and other factors beyond the operators control. A given antenna might be far superior under one set of condition, and rather disgusting under another. Most signal reports also tend to be very subjective, inaccurate, and not repeatable. If you are using a light built to tune a commercial antenna, which has already been optimized in extensive lab and field tests, I suspect that it is likely that a light bulb will give a similar result a proper VSWR measuring device. (Actually, that's not quite correct because I don't tune my antennas for minimum VSWR). However, that's not why someone purchases and uses a VNA or swept return loss bridge. They use these because they're building their own antenna, or optimizing a commercial antenna. Once the antenna has been properly tuned and tweaked, the VNA and return loss bridge are no longer needed unless something changes. Incidentally, I use a remote field strength meter to compare antennas. It has it's limitations, but it's better than using VSWR or maximum antenna current as in your light bulb method. Given your ability to estimate the performance of an antenna by looking at it rather than employ modelling methods, I would have though you would be sympathetic to the merits of the torch bulb approach. Since you seem impressed with my powers of observation, it might be useful to know that to the best of my limited knowledge, light bulbs went out of fashion in the 1930's, to be replaced by thermocouple antenna current meters. https://www.google.com/search?q=thermocouple+rf+ammeter&tbm=isch It is much easier to see changes in a meter deflection than changes in light bulb intensity, unless you also use a light meter. If you select different light bulbs for different power levels, you might be able to keep the losses to a minimum. In any case, a VNA or even a return loss bridge is not for you. There are plenty of things one can do with ham radio including "to be able to transmit signals intended to be received by another station". You seem intent on using the oldest and most crude methods of accomplishing this. That's fine as there is room for retro-radio, antique radio techniques, and preserving historical technology. I would guess(tm) that your radios all use tube (thermionic valves) and that you tune the transmitter for maximum cherry red glow in the finals. Best of luck, but that's not for me. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
4NEC2?
On 14/10/2018 11:57, Geoff wrote:
On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn’t reach further than a quarter mile. That’s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. -- Spike "Nearly all men can stand adversity, but if you want to test a man's character, give him an internet group to manage" |
4NEC2?
On Mon, 15 Oct 2018 10:43:09 -0400, Ralph Mowery
wrote: In article , says... Consider a 2 tone signal at the 9MHz USB IF, comprising 900Hz and 1300Hz tones. The components will be 9.0009 and 9.0013 Subtract the VFO at 5.5MHz: 9.0009 - 5.5 = 3.50009 9.0013 - 5.5 = 3.50013 Nothing has been inverted. The 80m signal is still upper sideband. GB3BERNIE Ralph is posting from rec.radio.amateur.antenna and google groups strips the crosspost - without a repeater, he's not going to answer you. Try it the other way around and use a ssb generated at 5 mhz and the vfo at 9 mhz. It is difficult for me to remember which was used for the vfo and ssb generator. I'm fairly sure the SSB was generated at 9MHz. Googling for a reminder, I find a large number of 9MHz sideband crystal filters available, while nothing for 5MHz. Presumably, the 9MHz sideband crystal filter is use for both the receiver IF filter and in the exciter SSB generator to strip off the unwanted sideband. https://www.google.com/search?q=9+mhz+crystal+filter -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
4NEC2?
"Spike" wrote in message ... On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnÃf¢ââ?s‰â?z¢t reach further than a quarter mile. ThatÃf¢ââ?s‰â?z¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: obvious init ? .... |
4NEC2?
mm0fmf wrote:
On 14/10/2018 20:59, Bernie wrote: On Sun, 14 Oct 2018 20:25:28 +0100 Brian Howie wrote: In message , Bernie writes On Sun, 14 Oct 2018 05:59:35 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 12:57:21 PM UTC+1, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spite sent a message from the other side: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spite sent a message from the other side: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike lied: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ'¬â"¢t reach further than a quarter mile. Thatââ'¬â"¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. What STC actually asked was which sideband he should use for RTTY on 40m. Which is, of course, an interesting question as it's not something that was covered in any exam, current or previous. My $0.02 worth is that it doesn't matter, since an RTTY operator will know that he needs to invert the received tones if he sees a string of "46464646" instead of "RYRYRYRY" Here's what was asked, and it wasn't posted no archive, or deleted, or any of the other weak bull**** that Burt has bean spraying around: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips?" https://groups.google.com/forum/#!or...-radio/MjriIIU zuHA/_ityI76x0IMJ Good old Burt. For the record all the data modes including RTTY use upper sideband all the way up from 136KHz . CW A1A is also upper sideband but there can be advantages to be had by swapping to LSB to avoid interference. F1A beacons seem to be a law unto themselves. You can get quite good at reading inverted morse. Amateur RTTY uses inverted tones and a different narrower shift compared with commercial RTTY. I don't know why your getting onto Steve about this as none of it is the radio amateur courses or even online anywhere, unless some smarty pants comes along and tells me it is. Ok it's in here for WSJT It was Burt who was doing the 'getting onto' and when it wasn't going well for him he introduced a new plotline about mysterious disappearing posts and the character defects that could be at the root of the disappearing posts. I joined it to point out that the posts are still there and that Burt is a liar and a ****ing idiot. But Burt is an excellent troller. Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. You say "none of us" - there are only three of you! Most group users don't particularly love Reay and his acolytes much more than Spike, I would think. -- Roger Hayter |
4NEC2?
On Mon, 15 Oct 2018 16:46:06 +0000
Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn’t reach further than a quarter mile. That’s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. .. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. |
4NEC2?
On 15/10/2018 17:58, Geoff wrote:
On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. -- Spike "Nearly all men can stand adversity, but if you want to test a man's character, give him an internet group to manage" |
4NEC2?
On 15/10/2018 19:10, Spike wrote:
On 15/10/2018 17:58, Geoff wrote: On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. And not to forget the intermittent fault on that FT757 which seemed to disappear resulting in the rig being sold off complete with undiagnosed fault as soon as possible. |
4NEC2?
On Mon, 15 Oct 2018 19:20:33 +0100
Gareth's Downstairs Computer wrote: On 15/10/2018 19:10, Spike wrote: On 15/10/2018 17:58, Geoff wrote: On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. And not to forget the intermittent fault on that FT757 which seemed to disappear resulting in the rig being sold off complete with undiagnosed fault as soon as possible. G is for grateful gobbler. |
4NEC2?
Roger Hayter wrote:
mm0fmf wrote: On 14/10/2018 20:59, Bernie wrote: On Sun, 14 Oct 2018 20:25:28 +0100 Brian Howie wrote: In message , Bernie writes On Sun, 14 Oct 2018 05:59:35 -0700 (PDT) Jeefaw K Effkay wrote: On Sunday, October 14, 2018 at 12:57:21 PM UTC+1, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spite sent a message from the other side: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spite sent a message from the other side: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike lied: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ'¬â"¢t reach further than a quarter mile. Thatââ'¬â"¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. What STC actually asked was which sideband he should use for RTTY on 40m. Which is, of course, an interesting question as it's not something that was covered in any exam, current or previous. My $0.02 worth is that it doesn't matter, since an RTTY operator will know that he needs to invert the received tones if he sees a string of "46464646" instead of "RYRYRYRY" Here's what was asked, and it wasn't posted no archive, or deleted, or any of the other weak bull**** that Burt has bean spraying around: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips?" https://groups.google.com/forum/#!or...-radio/MjriIIU zuHA/_ityI76x0IMJ Good old Burt. For the record all the data modes including RTTY use upper sideband all the way up from 136KHz . CW A1A is also upper sideband but there can be advantages to be had by swapping to LSB to avoid interference. F1A beacons seem to be a law unto themselves. You can get quite good at reading inverted morse. Amateur RTTY uses inverted tones and a different narrower shift compared with commercial RTTY. I don't know why your getting onto Steve about this as none of it is the radio amateur courses or even online anywhere, unless some smarty pants comes along and tells me it is. Ok it's in here for WSJT It was Burt who was doing the 'getting onto' and when it wasn't going well for him he introduced a new plotline about mysterious disappearing posts and the character defects that could be at the root of the disappearing posts. I joined it to point out that the posts are still there and that Burt is a liar and a ****ing idiot. But Burt is an excellent troller. Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. You say "none of us" - there are only three of you! Most group users don't particularly love Reay and his acolytes much more than Spike, I would think. I’d **** on Burt if he weren’t on fire. Does that make you feel better, Rog? I’d also put a dog dirt through his letterbox. -- STC / M0TEY / http://twitter.com/ukradioamateur |
4NEC2?
Geoff wrote:
On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldn’t reach further than a quarter mile. That’s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. . It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. I think Burt’s gotten to. -- STC / M0TEY / http://twitter.com/ukradioamateur |
4NEC2?
Gareth's Downstairs Computer
wrote: On 15/10/2018 19:10, Spike wrote: On 15/10/2018 17:58, Geoff wrote: On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. And not to forget the intermittent fault on that FT757 which seemed to disappear resulting in the rig being sold off complete with undiagnosed fault as soon as possible. G is for gammon. -- STC / M0TEY / http://twitter.com/ukradioamateur |
4NEC2?
Spike wrote:
On 15/10/2018 17:58, Geoff wrote: On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. It never fails to amuse me how Burt repeatedly gets hung out to dry on this topic by people simply stating indisputable facts to him. This has got to be the sixth or seventh time that he’s been utterly skewered and had his lies on this matter shredded, so why does he keep doing it? Of all Burt’s debacles, this particular one has got to be the least edifying. -- STC / M0TEY / http://twitter.com/ukradioamateur |
4NEC2?
On 15 Oct 2018 19:36:42 GMT
Stephen Thomas Cole wrote: Spike wrote: On 15/10/2018 17:58, Geoff wrote: On Mon, 15 Oct 2018 16:46:06 +0000 Spike wrote: On 14/10/2018 11:57, Geoff wrote: On Sun, 14 Oct 2018 11:55:13 +0000 Spike wrote: On 14/10/2018 11:44, Geoff wrote: On Sun, 14 Oct 2018 11:39:58 +0000 Spike wrote: On 14/10/2018 11:04, Geoff wrote: On Sun, 14 Oct 2018 08:50:13 +0000 Spike wrote: On 14/10/2018 01:32, Jeff Liebermann wrote: wrote: Gareth once complained about a mobile CB set-up he installed in a 4x4 couldnââ‚Ã⠀šÃ‚¬ÃƒÂ¢Ã¢â‚¬Å¾Ã‚¢t reach further than a quarter mile. Thatââ‚ ¬Ã¢â€žÂ¢s all you need to know about Gareth and radio. He probably didn't need any antenna at 1/4 mile (400 meters). snip interesting detection story Stephen Thomas Cole, the PP, just after gaining his UK Full licence by 'acing' all three exams, appeared on a UK Amateur group asking which sideband he should use on 40m. That's all you need to know about him and and his ability with radio. That sounds interesting - can you provide a link to that post? No. For some reason it's been deleted. Then we only have your word that it ever exsisted. I choose not to believe a word of it. 'It's been deleted' means it did exsist. You can't delete was was never posted. You might ask yourself why it was deleted. That's all you need to know about his ego and and his ability with radio. We only have your word for any of that. I choose not to believe a word of it. JFTR the offending message was posted in the group free.uk.amateur-radio, on the 1st of December 2013. Some news servers will carry messages this far back, the one used for this exercise has messages back to 27 June 2003. Downloading all available messages from that group shows that the offending message has 'disappeared'. We only have your word for that. I choose not to believe you. A response to the offending message remains and quotes in full the original message. The OP's answer to that response has also 'disappeared'. The full text of the offending message was reposted by the responder. It's been reposted here too: "Was pottering at my radio last night, heard the scream of data being sent and was triggered to revisit a long parked project; getting going on RTTY! Here's the hardware I'm using: Yaesu FT757-GXii Serial/USB cable interface thing PowerMac G4 running CocoaModem I've got everything hooked up, have CocoaModem configured and displaying a waterfall but when set to RTTY mode it's just decoding gibberish... Other than a couple of short spells at club days, this is my first go at this and I have no idea what I'm doing... Any tips? It confirms the confusion in the OP's mind concerning which sideband to use on 40m, just as was stated. No, it doesn't. Even his followup: "Will do. I was doing this on 40m, so had the rig on LSB. Would people use USB for RTTY? Just Googled and I see LSB is customary for RTTY, which I was vaguely aware of... I need to do more reading!" Confirms that he knew which sideband to use on 40. It's RTTY that he has the doubt about. It is left to others to speculate on why two such embarrassing messages should have 'disappeared' out of the 530+ from the OP that remain. The original message can be found on Google Groups: https://groups.google.com/forum/#!or...A/_ityI76x0IMJ Feel free to choose to believe what you will. I believe that you are a bitter, spiteful old man who will say whatever suits his ends. You're welcome. Thanks for confirming that what I said was correct. It never fails to amuse me how Burt repeatedly gets hung out to dry on this topic by people simply stating indisputable facts to him. This has got to be the sixth or seventh time that he’s been utterly skewered and had his lies on this matter shredded, so why does he keep doing it? Of all Burt’s debacles, this particular one has got to be the least edifying. It's all Burt's got - love him. |
4NEC2?
Stephen Thomas Cole wrote:
Roger Hayter wrote: mm0fmf wrote: snip Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. You say "none of us" - there are only three of you! Most group users don't particularly love Reay and his acolytes much more than Spike, I would think. I'd **** on Burt if he weren't on fire. Does that make you feel better, Rog? I'd also put a dog dirt through his letterbox. Quite so. But there are still only three of you. -- Roger Hayter |
4NEC2?
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4NEC2?
Roger Hayter wrote:
Stephen Thomas Cole wrote: Roger Hayter wrote: mm0fmf wrote: snip Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. You say "none of us" - there are only three of you! Most group users don't particularly love Reay and his acolytes much more than Spike, I would think. I'd **** on Burt if he weren't on fire. Does that make you feel better, Rog? I'd also put a dog dirt through his letterbox. Quite so. But there are still only three of you. If I were you, Rog, I wouldn’t take a straw poll on how many of the group’s regulars would put a dog dirt through your letterbox. -- STC / M0TEY / http://twitter.com/ukradioamateur |
4NEC2?
"Stephen Thomas Cole" wrote in message ... Roger Hayter wrote: Stephen Thomas Cole wrote: Roger Hayter wrote: mm0fmf wrote: snip Of course none of us would **** on Burt if he were on fire. Apart from Dicky 'Rimjob' Brown. But that's because he's trying to hide the fact he lied about his licence level. You say "none of us" - there are only three of you! Most group users don't particularly love Reay and his acolytes much more than Spike, I would think. I'd **** on Burt if he weren't on fire. Does that make you feel better, Rog? I'd also put a dog dirt through his letterbox. Quite so. But there are still only three of you. If I were you, Rog, I wouldn't take a straw poll on how many of the group's regulars would put a dog dirt through your letterbox. I wouldn't do that to anybody...... |
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