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#11
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Fifth pillar
In article ,
Phil Kane wrote: The State of Oregon is putting out six figures to provide for a D-Star EMCOMM network and a Pactor network. No, they are not. The ICOM radios can have the D-Star option added at local expense. Neither the 2820 nor the 2200 have D-Star built in. There certainly is no D-Star repeater support. Pactor is fine - my setup works at minimal cost- as long as it's Pactor I. The cost of the proprietary modem for Pactor II and III is in the high three figures if not four by now with the falling dollar. The pactor is intended primarilly for county to state communication, not user to user. |
#12
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Fifth pillar
In article ,
Michael Coslo wrote: Mark Kramer wrote: In article , Michael Coslo wrote: I still want a PSK31 HT. My God, why? APRS has a texting mode. The technology is in place and well-defined. APRS texting isn't terribly convenient, That's a user-interface issue, not a technology issue. I could write software tomorrow that hooks my D700 up and sends APRS text as easily as email, if someone hasn't already. I've seen aftermarket keyboards for the D700 to do this. and you have to put up with the rest of the squacking to get it. I have no idea what you mean by this. You aren't going to listen to the PSK31 audio any more than you have to listen to the APRS audio when using it. A two-second burst of 1200 baud packet, even assuming a 500 ms TXDELAY, has more text than a standard SMS. That's more than 50 seconds at PSK31. I'm not talking about sending data, or long messages, just ones similar to what is sent in cell phone text messages. "Cell phone text messages" are "data". Two seconds of 1200 baud packet can send more "cell phone text" than more than 50 seconds of PSK31. If people had to wait a minute for their SMS text messages to be sent instead of the few seconds it does, they'd be less likely to use it. This is about getting people interested and using Ham radio. We HAVE the technology in place that is better than that proposed as the salvation of amateur radio. No, a PSK31 HT isn't going to do anything to support the hobby or bring new people in that APRS HTs haven't already done. A PSK31 HT is an interesting concept; difficult product. It isn't necessarily about getting something that you or even I would buy. If nobody buys it, then it won't ever be cheap. If WE, the existing amateur base doesn't support it, it ain't gonna happen. Voice HTs work because there is an existing repeater infrastructure. APRS HTs work only because there is an existing APRS network infrastructure. If there is no VHF PSK31 infrastructure, it isn't going to be used. Younger folks, high school kids, would likely buy into something like that. No "younger folks" are going to buy a new technology where there is no infrastructure to support them. Who's going to install the PSK31 digipeaters? What I envision would be likely simplex. The range of a PSK31 HT would be very short. FRS distances, at best. It would be extremely sensitive to antenna orientation. You couldn't load a message and then put the HT back on your belt while it takes a minute to send. Who is going to pay several hundred dollars for an HT that can only communicate three blocks in a city? Although a repeater could come into the picture somewhere, it wouldn't need to be a digipeater. PSK31 is a DIGITAL mode. Repeaters for digital data are ofen called digipeaters. WHO is going to install these repeaters? You can't use the existing ones -- PSK31 is narrowband FSK, existing repeaters are relatively wideband FM. If you are going to use an entire FM voice channel bandwidth, you might as well use standard 1200 baud packet and APRS. Existing technology. Where are all the youngsters using APRS messaging? Why do you believe they would flock to a slower, shorter range system? These are all pretty minor technical problems. I imagine that a person might be able to differentiate between signals in an old school manner, by tuning them in. A PERSON might be able to, but a DIGIPEATER is not a person. And these YOUNG PEOPLE you want to lure into the hobby with a PSK31 HT aren't going to want to have to tune around hoping to be on the right frequency when their friends send them messages. It's got to be channelized to make it simple. An HT that's off channel by as little as 100Hz for PSK31 is a different channel. That's REALLY tight technical standards for amateur gear. Ever try sending an image at 1200 baud? I've sent SSTV images in a fairly short time. They aren't large images, They are also not PSK31 data. Entirely different mode. I have to say that I probably would never buy such a device. That doesn't make it a dumb idea though. No, the technical issues do, and expecting it to bring lots of new people into the hobby as something similar to SMS text messaging is silly. We have better technology already in our hands; where are the people? But you're the guy who wants texting via PSK31? D-STAR texting, bad. PSK31 texting, good? I don't declare D-Star Texting "bad", but I do declare the PSK31 texting pretty darn good. In it's place, perhaps. Sitting in a radio shack with a $1000 HF radio and a computer to decode it, yes. In an HT, no. PSK31 has a huge advantage in that it is pretty cheap, and not proprietary. D-Star is decidedly not cheap, and is quite proprietary. No, D-Star is not proprietary. It is an open standard. Wanna use D-Star? Get out the plastic and go without something else for a couple years. Yes. Want a usable PSK31 HT? Go without something else for many years. I think that what would be needed is for local governments to do the actual purchasing, then hand it over to the Hams. Wow. The Hams are going to have to have regular access to the D-Star repeater, or else they won't buy-in. The hams are going to have to have a lot of MONEY to have regular access to any D-Star repeater. My honest opinion however is that this is one of those technology solutions that just add too much technology to the mix. One of the big complaints from emergency responders is that they can't talk to each other. This is due to the introduction of too much structure upon the system. This is due to licensing limitations that prevent LMR radios from being fully and easily programmable in the field. With D Star, we do the same thing with Hams. I know of no D-Star radio which is not fully field programmable. I thought I'd like to buy an ID-1 when it came out. At $3000 (one for me, one for someone to talk to) I said "no thanks". Yup. And the big problem as far as Amateurs go is that they can't get into the system. I have no idea what you mean by this. What "system" can they not get into? Whereas you or I can build a CW, SSB, FM, or PSK31 radio for most any application we'd like, we can't do that with D-Star. So what? Most people cannot build even a CW transmitter, much less a PSK31 system. Have YOU built your own PC to run the PSK31 software yet? I doubt it. So unless those prices come waaaay down, D-Star is going to be a very low volume mode, probably used only by emergency groups. Of course if that is the case, they shouldn't be operating it on the Amateur bands, because they can get more use out of it on their own frequencies, I'm sorry. Exactly what frequencies do ARES groups have that aren't part of the Amateur Radio Service? How do I legally put an amateur certificated repeater on to a public-service frequency? which won't have Amateur reestrictions. Amateur restrictions are trivial compared to LMR. Nobody is demanding that we all cut our bandwidth and channel spacings in half by 2013, e.g.. Our licenses don't come with a list of specific frequencies we can use. |
#13
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Fifth pillar
Mark Kramer wrote:
Michael Coslo wrote: PSK31 has a huge advantage in that it is pretty cheap, and not proprietary. D-Star is decidedly not cheap, and is quite proprietary. No, D-Star is not proprietary. It is an open standard. I respectfully disagree: http://en.wikipedia.org/wiki/D-STAR to quote the relevant part: "D-STAR has been criticized for its use of a patented, closed-source proprietary voice codec (AMBE). [4] Hams do not have access to the detailed specification of this codec or the rights to implement it on their own without buying a licensed product. Hams have a long tradition of building, improving upon and experimenting with their own radio designs. The modern digital age equivalent of this would be designing and/or implementing codecs in software. Critics say the proprietary nature of AMBE and its availability only in hardware form (as ICs) discourages innovation." end quote Wow. Understood. I'll skip most of the post because I'm not looking for a sentence by sentence rebuke here. Let's just take it that you don't like my ideas, and we'll move on. My thoughts are that having some sort of device that young people can use to communicate with each other, in a manner such are they are used to, such as texting, might just be a good thing. Add a couple more friends, and you have a VHF chat room. No need for repeaters, no need to intrude on other people's BW. The idea isn't to forge some new technology. Too many people get caught up in that. It is an application of available technology in a way that some folk might not see as useful, but others might. - 73 de Mike N3LI - |
#14
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Fifth pillar
On May 23, 12:11 pm, Michael Coslo wrote:
My thoughts are that having some sort of device that young people can use to communicate with each other, in a manner such are they are used to, such as texting, might just be a good thing. The operative word there, IMHO, is "might". Add a couple more friends, and you have a VHF chat room. No need for repeaters, no need to intrude on other people's BW. The idea isn't to forge some new technology. Too many people get caught up in that. It is an application of available technology in a way that some folk might not see as useful, but others might. The Big Problem I see is that ham radio will never be competitive in areas where there is a similar mainstream/commercial alternative. IOW, why would any non-ham with a cell phone that can text want a ham-radio text-message device? Where ham radio has always been a success is in offering things that are *not* available anywhere else. For example, in the days before cell phones, repeaters and autopatch were a big deal because they offered communications that the average person could not get any other way. This doesn't mean I'm against anyone building whatever kind of ham rig strikes their fancy, as long as it meets Part 97 rules. All I'm saying is "do what interests you, don't expect it to attract a certain demographic". 73 de Jim, N2EY |
#16
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Fifth pillar
On May 23, 8:41�pm, Phil Kane wrote:
�Before ham autopatches were popular on repeaters, the telcos - both wireline and non-wireline - offered Mobile Telephone Service (MTS) �using mobile operators and Improved Mobile Telephone Service (IMTS) permitting subscriber dial. �Expensive - you bet - but they were available to the average person. Right you are, Phil! I should have noted that while such services existed, their cost was such that most "average people" could not afford them. 73 de Jim, N2EY |
#17
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Fifth pillar
"Michael Coslo" wrote in message ... The idea isn't to forge some new technology. Too many people get caught up in that. One of the bedrock notions of Amateur Radio is for licensees to "get caught up in" the advancement of the radio art. In my opinion, too FEW are "caught up in that". Chat rooms for teenie-boppers isn't mentioned in "Basis and purpose" 73, de Hans, K0HB Grand Exhalted Liberator of the Fumes of Solder |
#18
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Fifth pillar
Phil Kane wrote:
Oh? Before ham autopatches were popular on repeaters, the telcos - both wireline and non-wireline - offered Mobile Telephone Service (MTS) using mobile operators and Improved Mobile Telephone Service (IMTS) permitting subscriber dial. Expensive - you bet - but they were available to the average person. Some of those transceivers found their way into the ham market after the telcos upgraded to newer stuff. Actually, the "supply" of (pre-cellular) mobile phone service was grossly inadequate to meet the demand for it. That is what drove the development of cellular phones. Even the owners of the limos in which it was installed often complained of having to wait 15 minutes or more to get a dial tone. (You will recall that that service used the 150 MHz band and there was no law against monitoring it. This was pre-Electronic Communications Privacy Act.) -- Klystron |
#19
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Fifth pillar
On Fri, 23 May 2008 22:58:55 EDT, "KØHB"
wrote: Chat rooms for teenie-boppers isn't mentioned in "Basis and purpose" Neither is contesting or DXpeditions but we do that and look forward to more of the same as part of the "real" ham radio experience. -- 73 de K2ASP - Phil Kane From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon e-mail: k2asp [at] arrl [dot] net |
#20
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Fifth pillar
KØHB wrote:
"Michael Coslo" wrote in message ... The idea isn't to forge some new technology. Too many people get caught up in that. One of the bedrock notions of Amateur Radio is for licensees to "get ca ught up in" the advancement of the radio art. In my opinion, too FEW are "caught up in that". Chat rooms for teenie-boppers isn't mentioned in "Basis and purpose" Spread-spectrum, digital modes, moonbounce . . . none of these are mentioned in "Basis and purpose". I don't see any conflict between "chat rooms for teenie-boppers" and "forge new technology". In fact, I see a lot of similarity between "chat rooms for teenie-boppers" and the groups that have been squatting on the same frequency on 75 meters for 40 years and complain of interference, even though there's lots of unused newly-allocated space. Some of those younger hams contribute a lot to our hobby, and I wish we could figure out ways to attract more of them. Maybe a good start would be to recognize their potential and quit using derogatory terms to describe them. 73, Steve KB9X |
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