What kind of problems do frequency coordinators have?
Nowadays there are probably 2 main problem areas. 1. First are problems created by the few uncoordinated machines which pop up from time to time. 2. Second, are problems caused by the proliferation of dual-band transceivers with built-in cross-band repeat capability. Unfortunately, a poor choice of frequencies can cause interference problems which may go totally unknown to the user of the dual-band radio. SERA has published a list of suggested frequencies for use with mobile cross-band repeaters. There are a small number of uninformed operators who abuse cross-band repeater capabilities causing unintentional, but sometimes even malicious, interference. Other problems are caused when the frequency coordinator is not apprised of changes to existing repeaters, changes of sponsor’s mailing address, etc.