WSHM765

Placed a Retevis Ma01 2 piece fiberglass on top of aluminum telescopic flag pole..approx 21 ft high. Ran coax down pole to ground into 10 ft of conduit to corner of house then in thru the wall to radio. approx 60 ft of kmr 400 . question is it okay to run that 10 ft underground in conduit ? sealed both ends to prevent surface water from entering pvc pipe.

Hello everyone , Newbie to the GMRS world. Purchased the retevis RA 87 for a base unit w/ Btech power supply. one small issue i can't figure out how to get the preprogramed channels to appear . first day they displayed . Today i just see the frequencies , i want to scan the channels and not the frequencies..any help for dummies ? Thanking you in advance. WSHM765