ORIGINAL: futureboy1969
Tx and RX have to match
well that is mostly true except in some radios cases that they are just relabels of others. Like the GT2, HK(i forgot the number), and a few others all are compatible.
Or then you get others like the orange RX's that say they work with certain radios.
But I've never seen a single thing say it was compatible with traxxas's TQI, and I'm betting on the 99.9999999% its proprietary to traxxas