FlightAware Discussions

Dump1090-FA v5 Config Options

I’ve cobbled together my dump1090 configuration file over several years, and no longer really know whether the set flags are now superfluous or still useful. Or if I’m missing something new… When I upgraded my package install to V5, I did not let it overwrite my configuration file, so I’m also a little worried that I’m now missing something important… Has anybody developed on optimized set of config flags?

I plan to follow some of the guidance from @abcd567 regarding gain optimization, as I suspect I’m set fairly high for being located within Chicago and on the flightpath into O’Hare. Although I think using the flightaware 1090 mhz band-pass filter allows me to set gain higher while avoiding amplification of a ton of garbage signals.

Also, has anybody had luck optimizing their PPM? Or is that no longer really a thing that is necessary… Running a flightaware Prostick (orange) with the flightaware 1090 mhz band-pass filter to the flightaware antenna.

My configuration:
\

ENABLED=yes

RECEIVER_OPTIONS="--device-index 0  --ppm 5 --gain 43.9 --net-bo-port 30005 --net-sbs-port 30003"
DECODER_OPTIONS="--dcfilter --max-range 360 --fix --modeac --forward-mlat"
NET_OPTIONS="--net --net-heartbeat 60 --net-ro-size 1300 --net-ro-interval 0.2 --net-ri-port 0 --ne$
JSON_OPTIONS="--json-location-accuracy 2"
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Prosticks have a TCXO, so they’ll be accurate to within about 1ppm out of the box and should stay around there even as ambient temperatures change. ADS-B is very tolerant of frequency errors anyway and mlat mostly only needs stability, so it’s not really worth trying to correct the residual error.

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