FM Repeater Systems

VHF repeaters: 147.345+ MHz  (TPL 107.2) and 224.32-  MHz  (TPL 110.9) located in Techny.

The 2M system consists of Icom RP-1520 repeater and S-COM 7K controller. The 2M repeater operates with 150 watts ERP from an omni-directional antenna at 110 feet and serves northern Cook and southern Lake counties. It is also IRLP node number 4206. The 220 repeater uses Hamtronics components and a Mirage amp running about 100 watts ERP from a Hustler G-7 at 100 feet. It primarily serves northern Cook and southern Lake counties.

FM/ DMR Repeater System

UHF repeater: 442.725+ MHz located on the far north side of Chicago. Analog users need to use a TPL of 114.8 Hz. DMR (digital) users will need to use color code 1.  Digital mode supports 2 simultaneous, yet unique “time slots” or channels. Slot 1 users will use Call ID 1, slot 2 users will use Call ID 2.  If an analog signal is received by the repeater, an analog will be transmitted out.  If a digital signal is received by the repeater, a digital signal will be transmitted.  If you are strictly an analog user and do not wish to hear the digital hums and squeals of a digital transmission, set your analog radio to use tone squelch frequency 114.8 Hz.

The repeater consists of a Motorola MotoTRBO repeater operating in mixed analog and digtal mode and uses an S-Com 7330 controller. It operates with about 80 watts ERP from an offset pattern antenna at 513 feet. It primarily covers Cook and Lake counties and has become one of the most active repeaters in the Chicago area.  The 442.725+ repeater is also connected to Echolink courtesy of AA9VI.  The node # is 7641.

Our repeaters are open to all licensed radio amateurs.