We have just installed a two-way radio in our ambulance and it constantly squelches,?

Question

this radio constantly squelches. but when keyed up it hits the repeater like normal . then back to just all squelch. we have checked all wires , we have evene replaced the radio with a different one, and it does the same. even the radio company is scratching their head...anyone have any clue

Answer 1

hey make sure the antenna  is assembled  tight,it might be ,loose,theres a boilt in the bottom of it to tighen it ,or you grounds has to be good and tight also buddy,try this