[amsat-bb] SDR monitoring/telemetry station

[John Brier]

Hold on,

Are you saying you can't decode packets from an audio recording of
packets heard on your D72? I've not tried the D72 in this way but I
have definitely done this with an old Kenwood TM-261a mobile radio, I
believe my Icom IC-706MKIIG, and maybe my old Kenwood TH-G71A HT.

I recorded using PCM WAV 44.1 KHz 16 bit in Audacity and decoded with
Soundmodem on Windows.

If this is your goal, what was your setup?

I should mention that not all packets decode even when they seem to
sound loud/clean/etc.

73, John Brier KG4AKV

On Fri, Sep 23, 2016 at 4:26 PM, Matthew Stevens <matthew at mrstevens.net> wrote:
> So, after discovering that trying to process telemetry data from the
> audio log I recorded out of my D72A doesn't work at all, I'm kicking
> around the idea of getting an SDR receiver to monitor Fox/Funcube
> telemetry, as well as use for general HF/air band/satellite reception.
>
> My first thought is to use an SDRplay hooked up to my computer as a
> more-or-less unattended monitoring station. I'm aware of the Funcube
> dongle, but it looks like the SDRplay is a little more versatile as
> far as general SDR use, not just sat telemetry. In theory it looks
> like I can set up HDSDR with an SDRplay to record automatically on
> intervals, and then process telemetry after the fact. In
> practice....Has anyone used this approach? Or have a better way?
>
> My other question is about antennas. I know there isn't going to be
> any one antenna that will work for everything. At first I will
> probably just use a spare 2m/440 mag mount I have lying around, stuck
> on the metal roof of my house. Just curious what others are using?
>
> thanks,
>
> - Matthew KK4FEM
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