Does anyone know which GPS sentence(s) the micro-node RTCM is looking for?  I am working on adapting some commercial GPS units that originally provided timing for cellular sites and I suspect that my remaining issue is that it's not outputting the sentence the RTCM is looking for.   If anyone knows which one (or ones) it's expecting, it would be greatly appreciated information!

My unit is currently spitting out $GPGGA but even after a valid fix is achieved, the RTCM remains in the state "GPS is active, waiting for lock"

Thanks

James

KI0KN