[amsat-bb] 9.6k woes and FoxTelem

[Kevin Zari]

Apparently, things are working just fine. Not sure what changed, other than
being patient. Maybe I just can't decode DUV on AO-85 which is what I doing
all of my tests on. I left it running with all of the birds today. Swung
home for lunch, and got a great surprise - managed to help with the AO-92
photo...
Thanks to everyone who gave me encouragement and suggestions.
-Kevin

On Wed, Oct 10, 2018 at 12:54 PM Chris Thompson <g0kla at arrl.net> wrote:

> Kevin,
>
> To preserve your sanity you can measure the frequency response of the
> radio and see what it is doing to the audio path.  Feed the audio into the
> sound card and run a sound card spectrum analysis program.  There are many,
> such as Sectragram.  There are several listed here:
> http://www.radio.imradioha.org/pc_based_test_gear.htm
>
> To do this just tune to a part of the band with pure noise (which is most
> of the band).  The response you get then just shows what the filter is
> letting through.
>
> There is an example spectrum in the FoxTelem manual on page 13.  This is
> marginal. Ideally it extends closer to zero Hz.
> http://amsat.us/FoxTelem/foxtelem_manual.pdf
>
> 73
> Chris
>
> On Wed, Oct 10, 2018 at 11:42 AM Kevin Zari <kk4yel at gmail.com> wrote:
>
>> Frank, I have read through the manual and it doesn’t appear the IC-910
>> has a button to long press to put it in digital mode. Also, I learned that
>> the 9600 mode is only a toggle for the TX. On RX, it doesn’t change the
>> signal getting on pin 4 or not. The audio is always on pin 4.
>> -Kevin
>>
>>
>> -----
>>
>> The problem with the world is that the intelligent people are full of
>> doubts, while the stupid ones are full of confidence.
>>
>> > On Oct 10, 2018, at 11:06, Frank <K6FW1 at verizon.net> wrote:
>> >
>> > I  have a IC-9100.  In addition to setting the menu item to 9600 baud,
>> the radio has to be in FM digital.  To put the IC-9100 into FM digital the
>> FM mode button is de[pressed until the “D” icon shows on the display.  This
>> disables the filtering to allow the DUV audio from the satellite to pass
>> onto the sound card.  I don’t have an IC-910 so don’t know if this applies
>> to that radio.
>> >
>> > I am using the IC-9100 into a computer sound card and Foxtelem and
>> decoding the data and uploading to the server.
>> >
>> > Frank
>> > K6FW
>> >
>> >
>> >
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>
>
> --
> Chris E. Thompson
> chrisethompson at gmail.com
> g0kla at arrl.net
>