Connection Stratux to 4500s

[jwyatt]

Any receiver with the GDL-90 protocol can be used with the AF-4500 using Serial #1 or 3, and 115.2k baud.

I'm trying to feed ADS-B data to my 4500s as described on port 3, 115.2k. The source is a Stratux receiver, whose output format is supposed to be GDL-90 compliant. I get the green ADS-B tower count annunciator on the map screen, and see the traffic and ownship messages counters incrementing in the Maint->About screen, but I don't see the traffic targets displayed on the map. Is there a setting I'm missing somewhere to enable display, or is there a sample known-working traffic message somewhere, that I can compare with what is being sent to the EFIS?