Hello, I recently purchase a GRE super amplifier off eBay. I made sure there was a brand new battery installed and attached it to my Pro 106 scanner. I was hearing transmissions fine and then when I flipped the power switch on, the transmissions immediately stopped. I'm listening to a P25 system. Are there settings on my scanner I need to use for this Amp to work or is it just broken? Any help would be appreciated.
Thank you
Thank you