[amsat-bb] Re: true duplex radios

Ernie w8eh.ernie at gmail.com
Mon Jun 1 15:36:12 PDT 2009

My FT-8800 is my main FM sat rig. It is the perfect 'mobile' type for FM 
sats with the independent volume, squelch and tuning controls for each 
side (band). Full duplex crossband works perfectly. I even have mine 
rigged up with an external speaker/switch box with headphone jack. I can 
plug in the headphones, switch off the speaker and talk full duplex 
without feedback.

Having the 6 pre-program buttons on the front helps too. Mine is set up 
so that when I press button six, the VHF side goes to the AO-51 uplink 
and the UHF side goes to the downlink. I tune the UHF side as the 
doppler changes. Button 5 switches to AO-27 and SO-50.

Ernie W8EH

Andrew Glasbrenner wrote:
>> Really? Dual-receive, indeed. And will perform crossband repeating.
>> But I can transmit on one band and simultaneously hear myself on
>> another with a FT-8800?
> How else would it be able to cross band repeat? Page three of the manual:
> "Featuring 1054 memory channels (527 channels each for "Main" and "Sub" 
> band), full
> duplex operation with independent Volume and Squelch controls, and built-in 
> CTCSS and
> DCS encoder/decoder circuits, ..."
> 73, Drew KO4MA 
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