I've been recently experiencing a receiving issue on frequency. I can transmit clear and concise per ATC or CTAF. However, A lot of times on climb out specifically the radio will go quiet or very broken. It has even happened on the ground when I was lined up and waiting for a takeoff clearance and I missed the clearance entirely. What I have noticed recently is if the frequency is quiet (say we are listening for traffic 10-15ish miles out) and I tap the transmit button quickly, all of the sudden the frequency becomes alive and I am hearing everything clearly.
Last year I had a issue where I wasn't receiving ATC communications even in the traffic pattern. I swapped the radio to my current one and it seemed to improve immensely.
Radio is a Bendix/King KX155 TSO
Stumped and looking for advice.