What was found
BOTH SATELLITE PHONES SUCCESSFULLY COMPLETE AND RECEIVE CALLS BUT PILOT TRANSMISSIONS OVER BOTH CHANNELS ARE INOPERATIVE. AUDIO QUALITY FROM RECIPIANTS IS CLEAR & NORMAL. INBOUND CALLS ANSWER NORMALLY. GROUNDED - YES. ACCOMPLISHED CYCLING OF SATCOM CB. ACCOMPLISHED SATCOM 1&2 CALL AND RECEIVED CALL WITH LOUD AND CLEAR REPORTS. LOG SHOWS SIGNAL STRENGTH 4 OUT OF 5. REF B737-800 AMM 23-15-00-730-801. GROUND VERIFICATION CHECKED GOOD.