Originally Posted by ddmt
Yeah, I'm quite confuse about the gps lock as well. Where is the gps antenna BTW? Do you have any tool to check the frequency interference? The guy who uses the carbon uavframe said he got the gps lock in seconds. Could it be the interference from the IMU & ESC?
GPS antenna is on the back, its a regular square ceramic antenna. Back side of the GPS is all copper plane, with the antenna in the center. I added the gps front side pic. I do have a spectrum analyzer and some EMI/RFI measurement antennas, I can poke around them later when i have some time. I'm curious as well.