[amsat-bb] Re: SO50 Help Please

George Henry ka3hsw at att.net
Mon Jun 20 14:56:34 PDT 2011

It sounds like you are not transmitting the tone...

You should have two entries for SO-50 in the SubTone.SQF file:


When you click the "T0" in the upper left part of the SatPC32 screen, it will 
change to "T1", indicating that you have selected the first tone (67.0) for TX.  
If you click it again, it will change to "T2", indicating tone 2, 74.4 (only 
needed if the transponder is not already on).

Are you clicking the "T0" to turn on the tone?  Does the radio display show 
"Tone" or "T" or something to indicate that subtone is active?

Hope this helps!

George, KA3HSW

----- Original Message ----
> From: Douglas Phelps <dphelps1 at ameritech.net>
> To: amsat-bb at amsat.org
> Sent: Mon, June 20, 2011 4:24:53 PM
> Subject: [amsat-bb]  SO50 Help Please
> My equipment is an FT-847 feeding a pair of 8 element RHCP antennas with 
> Advanced Research Preamps mounted at the antenna.  I use SatPC for the  
> tracking.  I am supposedly transmitting a 67 Hz PL on  TX.
> Ar elevations above 40 degrees, I can hear AO50 full quieting with  just a 
> fading.  What I can not sdeem to do is TX through AO50.  I can  TX OK through 
> AO51 in its current mode (QRP transponder and no PL) but not  AO50.  I seemed 
> that if TX right when someone ended the TX, I could get in  for a fraction of a 
> second.  Can anybody tell me what I am doing wrong?  Is  their some quirk with 
> in the Sat Mode on the FT-847?
> Any help  would be appreciated.   Thanks.

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