[amsat-bb] Re: FT-726 automatic Doppler control?

[Jeff KB2M]

I remember this now. You would wire it up to the MIC connector, using the
MIC up/down switches to change frequency up/down. Also if I remember right,
the s/w would track the 1200 baud tones?

73 Jeff kb2m


-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Alan P. Biddle
Sent: Wednesday, March 24, 2010 23:15 PM
To: 'Ryan Caron'; amsat-bb at amsat.org
Subject: [amsat-bb] Re: FT-726 automatic Doppler control?

Ryan,

Remembering a loooong way back, but there is a RX-TX control which selects
which the frequency and other controls effect.  That include the mike steps.
So you can use the mike click, but there is no good way to work with both TX
and RX.  The clicks get spread between them.  Back in the packsat days, I
set the uplink and left it alone.  Then I switched to the RX and let the
AMSAT-TAPR interface do the frequency tracking.  The DSP-2232 would also
work, though only for 1200 baud.   

Alan
WA4SCA



-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Ryan Caron
Sent: Wednesday, March 24, 2010 5:48 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] FT-726 automatic Doppler control?

Anybody ever rig up automatic doppler tuning to a FT-726? Without a CI-V 
interface (or equivalent) the best idea I can think of is splicing a 
microcontroller in to push the up, down, and maybe the fast buttons on 
the microphone during a pass.

Then I'd just have to dial in the initial frequency before the pass starts.

73,
Ryan KB1LKI
AMSAT #37207
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