Jason,
Your approach is similar to something I tired to do several months ago
before AO-73 was launched. My idea was to try and use an RTL dongle as
an inexpensive sat RX. I was using HDSDR with the dongle and an omni
scanner antenna. I didn't have any luck at all receiving SO-50 but was
able to copy some stuff from VO-52. I also had desense issues when I
conducted experiments with an old two meter HT I have lying around here.
I was going to experiment with some filters to cope with the desense and
build an preamp based on the design of the one available from AMSAT but
I got discouraged a bit and sidetracked so the project went on the back
burner. Just lately I tried the SDR Radio console with my RTL dongle but
could never get the software to recognize it. I apparently have some
files missing and it hasn't been clear to me which ones or where to find
them. I very much wish I could afford a Funcube dongle pro but it's not
in the cards for me right now. Perhaps I'll give receiving AO-73 a shot
again. Been thinking about it. I appreciate you posting your experiences.
73,
Michael, W4HIJ
On 11/24/2013 11:28 AM, Jason Charles wrote:
All,
I posted an inexpensive way to listen and decode the Funcube telemetry
with the cheap RTL-SDR dongle. This can apply to almost any satellite
too. What makes this setup unique is the ability for SDR-Radio (v2) to
listen to Wide Upper Side Band and the Funcube dongle to Autotune.
Between the two you don't need to worry about doppler correction for
telemetry decode.
I also have the I/Q file and the audio of the transponder pass from
last night on there. I hope you find it useful. It has has been great
fun for me!
73 de Jason, N4JTC
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