[amsat-bb] IC-9700 DUV tips

[Kevin]

Hi All,
   On my 9100 I found that Icom filtered out the low frequency tones so 
it was necessary to use the aux out connector and be in data mode to get 
the full range of audio to be able to decode DUV.

It looks like Icom took an entirely different approach on the 9700, DUV 
is still filtered out on the front panel audio, but now aux out audio on 
the back panel looks to be also filtered and it makes no difference if 
you are in FM-D nor not, zero decodes on fox telemetry.

  The way around this  that worked for me was to go into the 9700 
connectors menu set USB AF/IF output  to IF,  set the level to 10% or so 
and then go make sure that Windows is set for 48000  on the audio port 
created, then on FoxTelem select the audio port, 48000 and then set  IQ  
for the mode and start it up, you will see two instances of the passband 
in the lower window, click on the middle of one of them and FoxTelem 
should be hunting around for a signal, occasionally FoxTelem seems to 
get confused with the two duplicate passbands in the window, but 
eventually  it picks one and stops hunting.

Captured about 1000 frames so far using this method and it seems to work 
well.

73
Kevin WA7FWF