[amsat-bb] Best SDR for satellite reception

[Greg D]

HA!  Never thought of using them together.  Got it working with my
generic RTL Dongle; so easy!

Thanks!

Greg  KO5TH


fabrice faure wrote:
> hello, you can use gpredict with gqrx to handle leo doppler with funcube
> 73 de Fabrice F4HHV
>
> Le 13 août 2017 18:23, "Paul Andrews" <w2hro.fn20 at gmail.com> a écrit :
>
>> Has anyone written software to allow the Funcube Dongle to be
>> frequency controlled to compensate for LEO satellite doppler?   For
>> linear satellites, 1Hz frequency control would be required.   For FM
>> 1KHz would be ok.   If it's not possible to control the actual FCD+
>> LO, it should be possible to control the baseband audio spectrum.
>>
>> I first used the FCD+ as a panadapter with an FT-847 with LEO linear
>> satellites.
>>
>> More recently, I use (dual polarization) two (2) Funcube Dongle Plus
>> SDRs for 2M EME and they are sensitive wideband (50 KHz) receivers.
>> Frequency stability on 144 MHz is very good and easily decode JT65
>> signals bounced off the moon.   No doppler compensation is used for
>> 144 MHz moon bounce.
>>
>> WSJT-X will control a commercial radio VFO to compensate for moon
>> doppler.   WSJT-X does not support control the FCD+ for doppler
>> compensation.
>>
>> The FCD+ is so widely used, I'm surprised that I have not found an
>> application that will control the FCD+ and support doppler
>> compensation.
>>
>> 73 - Paul - W2HRO
>>
>>
>>
>>
>>
>>
>> On Sun, Aug 13, 2017 at 7:03 AM, Andrew Rich <vk4tec at internode.on.net>
>> wrote:
>>> With the proliferation of software defined radios on the market I am
>> interested to hear what people think is the best for 137 / 144 / 440 / 1296
>> MHz use.
>>> I have selected the airspy mini based on the fact
>>>
>>> It's 12 bits
>>> It's got tracking filters
>>> It works with sdr sharp, hdsdr, gnuradio, gqrx
>>>
>>> Has anyone bought out a satellite specific SDR ?
>>>
>>> The funcube dongle is probably the best ?
>>>
>>> I have a hack rf as well as rtl sdr and sdr play
>>>
>>> Andrew
>>>
>>> Sent from my iPhone
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions expressed
> are solely those of the author, and do not reflect the official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb