Communications Support Forums

I am trying to connect a XTL 5000 to a newer Firecom unit. It is working, transmitting and receiving but the volume is too low on the receive side to understand. I am professional installer and I work for an agency. I have turned the gain up all the way on the Firecom and it is receiving but is too low to understand. There must be a setting for the XTL5000, but I can't find that setting. Any help would be appreciated. Thank you.