- Dec 31, 2005
I have some police radios from NW Iowa (Orange City) that are on the old VHF-HI band system. The channels are alpha tagged and I figured most of them out, but does anyone know what IHP-MER or IHP-MAT could mean. IHP means Iowa Highway Patrol. IHP-AIR was speed enforcement from aircraft-155.505 and IHP-CIS was Command,Intel and Surveillance ch- 155.445. TX is inhibited on all IHP channels. It is interesting to note that Orange City,IO police used marine band channels (ch.77 and 88) on their radios in addition to their155mhz police freqs. There was also a couple of channels that used to be reserved for "special industry" use like road crews, farms,etc programmed in. Must of been their secret channels for discrete use. The radios also have a toggle switch allowing you to turn on or off a Transcrypt scrambler.