After doing much research on the web, it seems that these Maxon units are known to blow their output power transistors when you use them at 40w, their advertised limit, and take the pcb with them. If you have a Bridgecom repeater, it would be wise to keep the power under 20w. Bridgecom modifies the internal software in them so it's not a straight swap. If you send a Maxon together with the repeater to Bridgecom, they will modify the radio and install it for you at $120/hr. Finding a new Maxon is not an option, using one from eBay is a bit dicey considering their reputation for blowing transistors.