No RTCM communication between base and rover

Hello!

I’m having some issues with a pair of RTK Surveyor kits I purchased a while ago. When I try to survey, the base station will lock in fine (takes about 2 minutes), but the rover does not seem to be receiving any correction data. The LEDs on both radio units light up green and flashing red, but the RTK light on the Surveyor module will not light up at all. Swapping the modules makes no difference. I am using the Holybro 915mHz 100W radios.

I have tried a factory reset and firmware upgrade, both ublox and Surveyor, without success. The tablet app that I use (mapit) says “waiting for GPS location” indefinitely and will show ~23 satellites in fix with ~32 in sky when connected via bluetooth. This problem happens intermittently.

Any help would be much appreciated!

Update: I’ve narrowed this down to a faulty antenna by swapping out components. I noticed the PPS light will not flash when that antenna is connected to base in case anyone in the future has the same issue.

Nice work! Thanks for reporting back. Please let us know if you’ve got a defective antenna. We’ll get a replacement for you.