[50mhz] looking for beacon transmitter

[Bill VanAlstyne, W5WVO]

Chris,

A buddy of mine and I were trying to convert a MASTR II for 6M beacon use. We've
kind of let the project slip, but I'd still like to get it finished before the
spring Es season starts. We did get a PIC processor running as a controller and
got the transmitter tuned up on the desired 6M frequency. The problem we were
having was KEYing TRANSIENTS ("key clicks") -- tuning down the band, you could
hear the thing coming 30 kHz or more away! Not something I'm willing to put on
the air. My friend tried a number of things to soften the attack and decay time
of the keying waveform, but nothing seemed to eliminate the transients. Have you
encountered this problem? If so, how have you done the keying to rectify it?

Bill / W5WVO


Chris Boone wrote:
> I would suggest a GE or Motorola FM xmtr instead of a piece of
> amateur gear for beacon use...A GE EXECII or MASTR II or Mot MICOR
> are my favs....I may have a lowband Motorola in storage....I prefer
> GEs more these days :)
> If you key the multiplier stages and leave the osc on all the time,
> you get a much better stable xmtr and no chirp!
>
> Chris
> WB5ITT
>
>> -----Original Message-----
>> From: 50mhz-bounces at mailman.qth.net
>> [mailto:50mhz-bounces at mailman.qth.net] On Behalf Of Scott
>> Sent: Sunday, February 06, 2005 1:27 PM
>> To: 6meter at yahoogroups.com; 'World Wide Six Meter Club'; '050 Mhz'
>> Subject: [50mhz] looking for beacon transmitter
>>
>>
>> Hi everyone,
>> The Synton Amateur Radio Club (W9YH) at the University
>> of Illinois is looking for a transmitter for a six
>> meter beacon radio.  We're looking for something along
>> the lines of the Icom 551 or IC-505.  The receive part
>> of the radio does not need to work.  We have an old
>> Ameco TX-62, but for a couple of reasons, we'd rather
>> not leave that on 24 hrs a day at the present
>> location.
>> If anyone has anything like this that they are willing
>> to sell or trade, please contact me at grams at uiuc.edu
>>
>> Other ideas, comments, or suggestions are welcome as
>> well.
>>
>> Thank you,
>> Scott Grams
>> W9AFB
>>
>>
>>
>>
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