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#2
October 2nd 04, 05:35 PM
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(Len Over 21) wrote in message ...
In article , (Brian Kelly) writes: . . . some of those "works of art" before I dumstered all that old crap. I have a yen now to build a couple more widgets using homebrewed PCBs but so far I have not been able to find the board stock or chemicals in hobby quantities. Go to FAR Circuits for a huge collection of PCBs available for all those magazine article projects. Ready-made wiring. FAR is run by a ham. I'm aware of FAR and the boards they offer, nice stuff, quite affordable and they can save a lot of drudgery. But I'd still like to burn a few of my own from scratch just for the helluvait. Don't keep old "crap." Save that to toss at NCTAs in newsgroups. snore The 74192 and other TTL family chips were hot stuff 30 years ago when I was doing that project. You can still get pin-compatible parts today. I fed the aformentioned dumpster a *shoebox* full of those old 7400 series chips . . . Tsk. Well, if you don't know how to use them, toss 'em. Nah. Just about everything radio in that heap which was more than twenty years old landed in the dumpster on general principles. You are PCTA extra royalty. Save the TUBES, recycle 'em into world-beating contest-quality radios to win all those accolades! I already gave 'em to Miccolis, ALL of 'em. 'Cept for the NOS Eimac 3-500Z. I'll prolly make a lamp out of it. That leaves Sweetums and his half-vast "experience" out. Long-haul military HF comms are channelized and if a station is weak they just twist the Variac clockwise. 40kW with rhombics just to push RTTY from Tokyo to the west coast . . SPARE me . . ! You "know" all about military communications? Absolutely not. Nor do I give a rat's patooie about military comms gear. Of course you do. You were of the royalty that was never IN. Right again. You've never worn an AN/PRC-104 HF manpack raddio, have you? Have you? Big, powerful 20 W out on HF, operational with U.S. land forces now. Same RF power out as the SGC 2020 being made in Belleview, WA, by the company started by Don Stoner and Pierre Goral (both SK, sadly, long-time hams). The full manual for the 2020 is on the SGC website in case you wanted to find out what is done TODAY. I could tell you were to get the four full government manuals for the PRC-104 free but you will only tell me "where to go." :-) I hate to bust yer bubble again Sweetums but they're all over the ham bands used mostly by the "pack radio" crowd. Nice rugged little minimalist's xcvr but somewhat lacking in rcvr basic performance. The "4 KW" and (later) "40 KW" pushing from Tokyo to San Fran or anywhere else in ACAN was for SIDEBAND. The 12 KHz first variety of SSB carrying four voice-bandwidth circuits. If you wanted 24/7 communications on HF back a half century ago, you needed power and antennas. You spit on that fact, relegating such "menial" tasks to "drudges" while you brag about "eating at the captain's table." "Here ya are Gunther, go for it boy!" It's no big deal at all. As far as the "math" goes any kid who has a decent grip on 9th grade alegebra can hoof thru it, this is not double integral or tensor analysis country. All one needs to pull it together is the material physical properties and the ability to jiggle a few simple algebraic equations which are only a half-step beyond jiggling Ohm's Law. All of it is readily available out on the Web and it can all be done with a pencil and a calculator. That's why Phil Smith came up with the Smith Chart back before WW2. :-) Not for designing antennas...for easing the work required by Bell Telephone on long-distance transmission lines. Work that required slide-rules and mechanical desk calculators (sometimes) due to pocket calculators not being invented yet. :-) I'm not new to slide rules and Fridens Sweetie, I had one of each on my board back when I was designing catapults. For my own part I've gotten into semi-automating the whole process in order to design widgets like tapered aluminum yagi elememts, fiberglass quad (squalo?) spreaders, masts and towers. I run a LISP rountine in Autocad to come up with the cross-sectional properties then diddle the rest in Excel or Mathcad or a slick little $50 shareware program called "DTbeam" which is a finite elememt analysis beam analyzer. The M.E.'s version of a Java-based Smith Chart solver. Sort of. Tsk. You should use Roy Lewallen's EZNEC. Roy is a long-time ham. EZNEC is advertised in QST. Sweetums if you will kindly point out just where in EZNEC Roy provides the ability to work thru antenna stress and deflection issues. USN Postgraduate School folks came up with the Numerical Electromagnetic Code (NEC) which is all free to anyone (no copyright). I'm not new to NEC either Sweetums, I have NEC2 two mouse clicks away from here along with it's Nec Win Plus interface. Too bad the USN types at the "captain's table" didn't mention that to you... .. . . in 1963?? |
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#3
October 3rd 04, 07:57 PM
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In article ,
(Brian Kelly) writes: (Len Over 21) wrote in message ... In article , (Brian Kelly) writes: . . . some of those "works of art" before I dumstered all that old crap. I have a yen now to build a couple more widgets using homebrewed PCBs but so far I have not been able to find the board stock or chemicals in hobby quantities. Go to FAR Circuits for a huge collection of PCBs available for all those magazine article projects. Ready-made wiring. FAR is run by a ham. I'm aware of FAR and the boards they offer, nice stuff, quite affordable and they can save a lot of drudgery. But I'd still like to burn a few of my own from scratch just for the helluvait. Don't keep old "crap." Save that to toss at NCTAs in newsgroups. snore The 74192 and other TTL family chips were hot stuff 30 years ago when I was doing that project. You can still get pin-compatible parts today. I fed the aformentioned dumpster a *shoebox* full of those old 7400 series chips . . . Tsk. Well, if you don't know how to use them, toss 'em. Nah. Just about everything radio in that heap which was more than twenty years old landed in the dumpster on general principles. Riiiight...Millen dials, J.W.Miller coil forms, Hammarlund variables, WW2 surplus items, tubes...all "over twenty years old!" :-) You are PCTA extra royalty. Save the TUBES, recycle 'em into world-beating contest-quality radios to win all those accolades! I already gave 'em to Miccolis, ALL of 'em. 'Cept for the NOS Eimac 3-500Z. I'll prolly make a lamp out of it. Do you have sufficient knowledge of electricity to wire it up? Don't you have to be QUALIFIED to meet the electrical code? That leaves Sweetums and his half-vast "experience" out. Long-haul military HF comms are channelized and if a station is weak they just twist the Variac clockwise. 40kW with rhombics just to push RTTY from Tokyo to the west coast . . SPARE me . . ! You "know" all about military communications? Absolutely not. Nor do I give a rat's patooie about military comms gear. Riiiight...but you KNOW all about what the U.S. military DOES, don't you? [you've demonstrated that in here before...] Of course you do. You were of the royalty that was never IN. Right again. That military service was for "drudge" citizens, not for the nobility whose bodies were far too precious to waste defending their country... tsk, tsk. You've never worn an AN/PRC-104 HF manpack raddio, have you? Have you? Yes, as a civilian! on the SGC 2020... I hate to bust yer bubble again Sweetums but they're all over the ham bands used mostly by the "pack radio" crowd. Nice rugged little minimalist's xcvr but somewhat lacking in rcvr basic performance. Awwww...not up to Kellie's mighty standards? Tsk. Are you in the tRoll opinion against the "shack on the belt crowd?" "Minimalist?" It does SSB very well. It includes a lot of self- check features as standard. Maybe you want a "top of the line contester" transceiver that not only has all the super selectivity and sensitivity to leap tall pileups but also keeps the logs and prints out QSLs? All on battery power? :-) That's why Phil Smith came up with the Smith Chart back before WW2. :-) Not for designing antennas...for easing the work required by Bell Telephone on long-distance transmission lines. Work that required slide-rules and mechanical desk calculators (sometimes) due to pocket calculators not being invented yet. :-) I'm not new to slide rules and Fridens Sweetie, I had one of each on my board back when I was designing catapults. Riiiiight...lots of catapults used in ham radio of your yesterday, huh? :-) Tsk. You should use Roy Lewallen's EZNEC. Roy is a long-time ham. EZNEC is advertised in QST. Sweetums if you will kindly point out just where in EZNEC Roy provides the ability to work thru antenna stress and deflection issues. Ask Roy. I thought that YOU, as the super-duper mechanical man would ALREADY KNOW what is needed! :-) USN Postgraduate School folks came up with the Numerical Electromagnetic Code (NEC) which is all free to anyone (no copyright). I'm not new to NEC either Sweetums, I have NEC2 two mouse clicks away from here along with it's Nec Win Plus interface. Riiiiiight...You are so schmardt in methods of moments theory... Too bad the USN types at the "captain's table" didn't mention that to you... . . . in 1963?? Tsk. Didn't the USN use radio then? Oh, yes, they used only morse code! Morse code gets through when anything else does... What DID you talk about? How "rough" the "war" was? Did YOU have some "hostile actions" and collect a shoebox full of medals? Oh, I AM sorry. I'm acting like a "drudge." I'm not supposed to DO such things, being an NCTA and all. This newsgroup is RESERVED for the PCTA extras, the elitists who meet to beat. |
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#4
October 4th 04, 09:36 AM
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(Len Over 21) wrote in message ...
In article , (Brian Kelly) writes: Nah. Just about everything radio in that heap which was more than twenty years old landed in the dumpster on general principles. Riiiight...Millen dials, J.W.Miller coil forms, Hammarlund variables, WW2 surplus items, tubes...all "over twenty years old!" :-) Right on Sweetums, I did exactly that. Except for a bunch of elderly variable caps which are always nice to have around when cobbling together matching circuits. You are PCTA extra royalty. Save the TUBES, recycle 'em into world-beating contest-quality radios to win all those accolades! I already gave 'em to Miccolis, ALL of 'em. 'Cept for the NOS Eimac 3-500Z. I'll prolly make a lamp out of it. Do you have sufficient knowledge of electricity to wire it up? Yup. Don't you have to be QUALIFIED to meet the electrical code? Of course, the NEC is only a couple mouse clicks away from here. That leaves Sweetums and his half-vast "experience" out. Long-haul military HF comms are channelized and if a station is weak they just twist the Variac clockwise. 40kW with rhombics just to push RTTY from Tokyo to the west coast . . SPARE me . . ! You "know" all about military communications? Absolutely not. Nor do I give a rat's patooie about military comms gear. Riiiight...but you KNOW all about what the U.S. military DOES, don't you? [you've demonstrated that in here before...] Cite the posts. Of course you do. You were of the royalty that was never IN. Right again. That military service was for "drudge" citizens, not for the nobility whose bodies were far too precious to waste defending their country... tsk, tsk. | Yawn | You've never worn an AN/PRC-104 HF manpack raddio, have you? Have you? Yes, as a civilian! Aha; I thought so, you're a member of the Smoggy Bottom Militia eh? on the SGC 2020... I hate to bust yer bubble again Sweetums but they're all over the ham bands used mostly by the "pack radio" crowd. Nice rugged little minimalist's xcvr but somewhat lacking in rcvr basic performance. Awwww...not up to Kellie's mighty standards? Tsk. You bet. Crummy rcvr. Dig up the test lab reports on it. Like this one. http://www.arrl.org/members-only/prodrev/pdf/pr9810.pdf Are you in the tRoll opinion against the "shack on the belt crowd?" Nope. "Minimalist?" It does SSB very well. It includes a lot of self- check features as standard. I can check my own radios Sweetums, but you better stick with SGC. Maybe you want a "top of the line contester" transceiver that not only has all the super selectivity and sensitivity to leap tall pileups but also keeps the logs and prints out QSLs? Right on again Sweetums, you're finally starting to get it. All on battery power? :-) Whatta a great battery-powered rig: Draws over a half amp while simply listening to a dummy load. required slide-rules and mechanical desk calculators (sometimes) due to pocket calculators not being invented yet. :-) I'm not new to slide rules and Fridens Sweetie, I had one of each on my board back when I was designing catapults. Riiiiight...lots of catapults used in ham radio of your yesterday, huh? :-) Well no, fact is Sweetums that I have a very current tech ham radio catapult, Miccolis and I used it to launch some Field Day antennas just a few months ago. He has one of a different design which also works well. Tsk. You should use Roy Lewallen's EZNEC. Roy is a long-time ham. EZNEC is advertised in QST. Sweetums if you will kindly point out just where in EZNEC Roy provides the ability to work thru antenna stress and deflection issues. Ask Roy. I thought that YOU, as the super-duper mechanical man would ALREADY KNOW what is needed! :-) I sure as hell do know what's needed and I also know it's not in EZNEC Sweetums, not even close. But you obviously don't know so you made an ass of yourself in public once again because you didn't spend enough time surfing around the Web to get up to speed on EZNEC before you spouted off about it. How many times . . ? USN Postgraduate School folks came up with the Numerical Electromagnetic Code (NEC) which is all free to anyone (no copyright). I'm not new to NEC either Sweetums, I have NEC2 two mouse clicks away from here along with it's Nec Win Plus interface. Riiiiiight...You are so schmardt in methods of moments theory... Eat your heart out. Too bad the USN types at the "captain's table" didn't mention that to you... . . . in 1963?? Tsk. Didn't the USN use radio then? Oh stop it you silly old fart, of course they used radio. Knock off your bush-league bait 'n switch games Sweetie, they don't work, the topic was the electromagnetics code, not "USN radio" Sweetie. Now once more was the NEC available in 1963 or not? Oh, yes, they used only morse code! Morse code gets through when anything else does... What DID you talk about? How "rough" the "war" was? Did YOU have some "hostile actions" and collect a shoebox full of medals? Oh, I AM sorry. I'm acting like a "drudge." I'm not supposed to DO such things, being an NCTA and all. This newsgroup is RESERVED for the PCTA extras, the elitists who meet to beat. || The usual broken record, snores galore || |
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#5
October 5th 04, 11:37 AM
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In article ,
(Brian Kelly) writes: (Len Over 21) wrote in message ... In article , (Brian Kelly) writes: on the SGC 2020... I hate to bust yer bubble again Sweetums but they're all over the ham bands used mostly by the "pack radio" crowd. Nice rugged little minimalist's xcvr but somewhat lacking in rcvr basic performance. Awwww...not up to Kellie's mighty standards? Tsk. You bet. Crummy rcvr. Dig up the test lab reports on it. Like this one. http://www.arrl.org/members-only/prodrev/pdf/pr9810.pdf Some observations on the SG 2020.... - It's a nice little rugged 20W box. Continuous HF coverage, which may be a big plus for those who want to do freeband or cb :-). - It's lacking in receiver performance in a number of ways. Some of the deficiencies are made up for by *audio* DSP, at extra cost. But it's direct-conversion, so things like aftermarket filters don't exist. Unwanted-sideband suppression is not up to superhet standards. - BDR and 3rd order 2 tone IMD are way below the competition, and are *noise limited* due to the synthesizer. - It's not a bargain. Costs more than many ham xcvrs that perform better. The basic unit is not too expensive but the add-ons are. - Almost no internal accessories. (ATU, battery, filters). No noise-blanker that I could find on the website. - Heavy, by comparison to the competition In almost every performance spcification, there are better performing rigs for the same or less money. About the only place the SG 2020 really shines is that it's in a rugged case, and puts out up to 20 W. Are you in the tRoll opinion against the "shack on the belt crowd?" Nope. "Minimalist?" It does SSB very well. It includes a lot of self- check features as standard. I can check my own radios Sweetums, but you better stick with SGC. It's not alone in the self-check function. How much test equipment is needed to do a complete alignment? Maybe you want a "top of the line contester" transceiver that not only has all the super selectivity and sensitivity to leap tall pileups but also keeps the logs and prints out QSLs? Right on again Sweetums, you're finally starting to get it. Take a spin over to the Elecraft website and see the mobile computer a ham put together in the EC2 enclosure. ITX motherboard, tiny LCD display. Big computer performance. Whole thing runs on 12V. All on battery power? :-) Whatta a great battery-powered rig: Draws over a half amp while simply listening to a dummy load. That's more than double the competition's requirement. Some smaller ultraportables draw about a tenth of that on receive! Plus SG2020 has no provision for internal battery. There's an external pack so you can run it on D cells. Bring a lot of D cells. You don't wanna think about what it draws while transmitting. Perhaps some folks' idea of fun is hauling all those batteries around. Good exercise ;-) But you missed the big question: Does Len own an SG 2020? How about accessories? Or does he do like my old highschool friend - "borrow" others' setups, rather than have his own? Well no, fact is Sweetums that I have a very current tech ham radio catapult, Miccolis and I used it to launch some Field Day antennas just a few months ago. He has one of a different design which also works well. You have the deluxe model, I have the minimalist. Seen service at several locations. IIRC, mine has been used on at least 3 Field Days and also to put up permanent antennas at ham QTHs. Yours is even better-traveled. 73 de Jim, N2EY |
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#6
October 5th 04, 05:51 PM
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PAMNO (N2EY) wrote in message ...
In article , (Brian Kelly) writes: (Len Over 21) wrote in message ... In article , (Brian Kelly) writes: on the SGC 2020... I hate to bust yer bubble again Sweetums but they're all over the ham bands used mostly by the "pack radio" crowd. Nice rugged little minimalist's xcvr but somewhat lacking in rcvr basic performance. Awwww...not up to Kellie's mighty standards? Tsk. You bet. Crummy rcvr. Dig up the test lab reports on it. Like this one. http://www.arrl.org/members-only/prodrev/pdf/pr9810.pdf Some observations on the SG 2020.... - It's a nice little rugged 20W box. Continuous HF coverage, which may be a big plus for those who want to do freeband or cb :-). Such negativism. Besides, they're not interested in 20W radios. Consider wx intercept, rtty wx, and hf fax. |
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