On Monday, September 19, 2016 at 5:46:47 AM UTC-7, Alex wrote:
That really sounds overly complex.

I would expect that any 987MHz device also has an NMEA based output to interface with Garmin instruments and other displays, as do current ADS-B and Flarm devices. If that is the case you could use a K6 MUX 2 in order to transform the output messages into a compatible format, integrate with the Flarm based data stream and send it to your displays.

Just like magic. Uh no.

FLARM Dataport traffic protocol messages are a NMEA extension. But no UAT avionics manufacturer makes products that talk FLARM's dataport protocol. This needs much more than a K6 MUX, it needs something converting raw traffic data in other formats into NMEA/FLARM Dataport, combining that with a Dataport stream, deduplciatiing traffic etc. and is non-trivial. There are devices available in Europe that add 1090ES In capability to existing FLARM systems, with varying success/capabilities, there is no UAT equivalent.