I am having a slight problem recieving GPS data through telemetry with both XBee and 3DR radio. I hook up everything and hit the connect button on the mission planner and it loade the paramaters. On the artificial horizion, it says "NO GPS" when it should say "NO FIX". I have seen this "http://code.google.com/p/ardupilot-mega/wiki/Troubleshooting#I'm_us..." and tried both suggestions and I have had no luck. I also have given this a look "http://diydrones.com/forum/topics/mtk-gps?commentId=705844%3AComment%3A292259" and I have had no luck.
I am using ArduRover firmware v2 found at "https://code.google.com/p/ardupilotdev/downloads/detail?name=APMrov..."
I am also using an XBee radio kit and an MTK GPS with 1.6 firmware.
Thanks for any help!