Anoying. hi i have a TM201a and it has this high pitch beep when lisening without TX/RX and the

Question

hi i have a TM201a and it has this high pitch beep when lisening without TX/RX and the only way to stop it is turn the squelch up higher, and also it has while i am lisening to a transmission it will drop a word during a conversation //IE i had a ....day today how was.... back to you ...i hope i have explained the problem,s ok regards................phil............o i might
add i am a kenny nut TS140S a TR-9130 a TK-259(n) plus AT-250