[amsat-bb] Fox, "Easy Sats"....et al....

Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb at wd9ewk.net
Sat Jul 4 18:56:36 UTC 2015


Not entirely correct. Unfortunately, the quality control on the Baofeng assembly
line is now what it should be. No two radios of the same Baofeng model will
perform the same, every time. It is possible to use two UV-5Rs, two UV-82s,
or a combination of UV-5R and UV-82 to work satellites. I've done this. I don't
normally use this option, but did it so I could "walk the walk" when I
say that it
is possible to use two of these inexpensive radios - including at a hamfest
demonstration I gave last year in southern Arizona:


I used a UV-82 as the transmit radio, since it has a PTT that can key each
VFO individually. The speaker-mic I use with the UV-82 also has separate
PTT buttons. I put 145.850 MHz in both VFOs, and set the appropriate
PL tones to activate the satellite (74.4 Hz) and to talk through the satellite
(67.0 Hz) in each VFO. No need to change frequencies/memories on the
transmit radio with this setup. I used a UV-5R as the receive radio, set to
tune in 2.5 Hz

I may have an advantage in working SO-50 with two of these HTs, since
I use an Elk log periodic instead of an Arrow Yagi or equivalent homebrew
dual-band Yagi. I have to use a diplexer to connect two radios to the
single feedpoint on the Elk, so the diplexer is also serving as a
bandpass filter.


Twitter: @WD9EWK

> P.S. Two Baofengs won't get you full-duplex because the one you use for the
> receiver desensitizes when you transmit with the other one.

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