[1000mp] A serious technical question, MKV

[D. J.]

When I switch from RX to either ant A or B I lose receive.  I push  
the RX button a few times and receive comes back.  I think it's a  
relay.  Has anyone had this problem and if you did and replaced the  
relay could you tell me which one it is?  I have the SM but it's in  
PDF and so damn hard to read.  I could tear the covers off and listen  
but I thought I'd ask here first.

Thanks
Dale, K9VUJ