[amsat-bb] Foxtelem and FT-736R

Chris Thompson g0kla at arrl.net
Thu Oct 15 01:56:14 UTC 2015

Yes, it is the G3RUH mod and there is a least one site that shows you in
pictures where to solder the wire as I remember.  I did this about a year
ago when I was first testing the software.  I get great decodes from the
FT-736R this way.

Use an old headphones cable with the earbuds cutoff as the wire.  Then you
have a plug ready to connect to your soundcard!  If you have a choice use
Line In rather than Mic on the computer.

Good luck!


On Wed, Oct 14, 2015 at 8:40 PM, Tony Langdon <vk3jed at gmail.com> wrote:

> On 15/10/2015 5:01 AM, Tom Worthington wrote:
> > I've tried unsuccessfully to decode using the 9600 b output of my FT-857
> > into a sound card.
> >
> > The manual for Foxtelem refers to pulling the discriminator signal out
> > of the Yaesu FT-736R for decoding.
> > However, it does not suggest a point on the circuit.
> > I'm thinking to try between Q20 and Q21 on the RX unit.  perhaps a 0.1
> > uf cap to the collector of Q20?
> > Has anybody else tried this?
> Can't help off the top of my head, but ig you google for D-STAR on
> FT-736R, you will find mods that will allow true 9600 operation (D-STAR
> has similar requirements).
> You'll just need to do the Rx side of the mods for telemetry decoding,
> but doing Tx as well will give you more options in the future.
> --
> 73 de Tony VK3JED/VK3IRL
> http://vkradio.com
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Chris E. Thompson
chrisethompson at gmail.com
g0kla at arrl.net

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