FlightAware Discussions

HOWTO: Airspy mini and Airspy R2: Piaware / dump1090-fa configuration

#282

Do you think it may work with one Airspy (for 1090, say) and one dongle (for 978, say)

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#283

Yeah that’s what i was saying i my last post.

Not sure how congested USB would get though.
Could be fine could be not fine.

It works with -m20 which is almost double the amount of USB bandwidth compared to -m12.

So using a rtl-sdr in addition should work.

The CPU load bottleneck is normally on one CPU core, even with -m20 the RPi 3B+ is mostly using one core and the other 3 are free.
So dump978-fa using half or so of another core should be fine.

It’s gonna produce more heat but that’s always something to look out for when running the RPi under load.

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#284

Thank you for the help Wiedehopf. I do not understand how to select the AirSpy R2 as the 978 dongle during concurrent 978 and 1090; am I to use R2’s serial number as the identifier, al la the serialized RTL-SDRs?

I’m back to 3.6.3, on the 3-, with R2 generating reports thanks to your automatic script.

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#285

I thought you would want the airspy to do 1090 MHz.
That will work with the script as airspy_adsb takes care of 1090 MHz.
airspy_adsb can’t decode UAT.

dump978-fa using the airspy soapysdr driver will not work on a Raspberry Pi, it uses a lot of CPU even on a proper not too old laptop. (70% of a core, i’ve tested it)

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