"Hi
If you plan to fly in Europe 900 mhz telemetry is a no go (gsm frequency). Unfortunately there is no real plug&play long telemetry for apm use in EU. "
"Hi,
I do already have Xbee868 connected to APM 1.0 via xtreembee on the test bench. It is compatibile in case of pinout, and software. However it needs external power source ,(XBee868 needs up to 800mA on full 300mW Tx power) xtreembee onboard…"