MUST MEET THE FOLLOWING ,TX 136-174 MHZ / RX 136-510 MHZ OPTIONAL TX 470-510 MHZ CHANNEL SPACING 5-6.25-10-12.5-25 SCAN AND PRIORITY SCAN PREFER (MIL SPEC 810) REMEBER WE ARE VOLUNTEERS AND WE ARE BUYING THESE OURSELVES SO PLEASE KEEP IT UNDER $100.00 PER UNIT MUST BE KEY PAD PROGRAMABLEAND BE ABLE TO LOCK OUT CHANNELS DURING SCAN FUNCTIONSCONTACT ME AT ;