Interesting ...... Â Now how do you do that and how do you stay within part 15 ? ... From: Adam E. <gccengineering@...> Subject: [49MHz] The Hobby Of 49...
Don't know the exact year, mid-70's, I think. 49 MHz equipment is AM, FM, FSK, PWM and so forth, there are radio modems, remote control, voice, telemetry, you...
I forgot to mention that both digital an analog encryption has been used on Part 15 49 MHz voice devices for about twenty years too, check out many of the old...
Well, I see that many hams tried to go digital with their home made transceivers, as long as you do not over modulate the signal you should be fine. Digital...
Bypass the input filter and go straight to the modulator, you should be able to get 50 - 100 KHz bandwidth. Kurt ... From: "Adam E." <gccengineering@...>...
... The problem, though, is that digital transmission media require a much better signal to noise ratio than an analog signal. A bit of noise in an analog...
49 mhz has been around for at least 40 years ..... To be leagal you would have to design a system that put out under 10,000 uv per meter  at 3 meters and i...
This is fine but how do you comply with part 15 ? ... From: Facility 406 DM09 <facility_406@...> Subject: Re: [49MHz] The Hobby Of 49 MHz is getting...
Yes, I used to have a beacon in the 90's that transmitted Commodore and similar tapes. My first transmission used the boot cassette from an old Wang at work...
I too still have my retro computers, mainly Commodore 64 (& C16), Atari 8bits, even a TI99/4a and TS1000. I too would be interested in trying this out with...
From what I recall, cordless phones have their own set of rules with references to Part 15. Use Part 15 direct, everything applying to walkie-talkies-baby...
Glad to see I'm not the only crazy one. My oldest computer is a Magnavox from 1969. It's built into a suitcase, the "programs" are some sort of chip on a...
It was ment to be basic however these rules apply to HTs as well as any form of base station..... Â NOW the problem is how to you apply DIGITAL to these old...
I still use my TRS-80 Model 102 laptop. It's outlasted anything with an 80x86 architecture. Just can't handle the bloated apps! kevin kc6pob ... From: Facility...
I still have a C-64 with 5.25in drive .... the good old days ...... ... From: kevin asato <kc6pob@...> Subject: Re: [49MHz] Re: The Hobby Of 49 MHz is...
All, I have the 49MHz YahooGroup set up so that, to prevent spam, I have to moderate a member's first two (if I remember correctly) posts. After that, they're...
Over zealous filtering. Many groups have been discussing this over the past year or so. Unfortunately, yahoo does not provide a list of the words they ...
... Hi my name is Sean ,Call KC4KTY I also have a TRC 503 21-402 5 channel FM Transceiver..Can you make me a copy of that Service Manual??? Thanks and 73's ...
Hi everyone I did not know this group existed,but I did find another 49Mhz group also and thought this was that group. Anyways Does anyone have a Service...
e-mail me it too. ... From: seanradios <seanradios@...> Subject: Re: [49MHz] radio shack 21-402 To: 49megahertz@yahoogroups.com Date: Saturday, May 16,...
Hi, I was wondering why my posts were still being moderated. It's one of the reasons I haven't been so active in this group. I apologize for not being so...
Sean, Bruce, and anyone else who is interested: The service manual for that unit and a few other R/S units are in the Files section of this yahoo group. The...
I have a question to see if I am right about this. Do we leave the main channel Channel C 49.860 MHz open for survival and emergency communications? You...
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