53.2700 MHz (-)

Callsign: KC0LUN
Republic, MO
PL 162.20

Comments

The 53.270 repeater is a wide coverage repeater. The guts of the repeater is a pair of Motorola CDM-750 radios modified for the ham band. Each radio can be used as the transmitter or receiver in the system by simply changing channels. In addition, the repeater has a "backup" pair of CDM-750's located and installed on site that can be utilized to make a total of 4 possible transmit and 4 possible receive radios. The transmit radio, set for 50-Watts output, drives a specially tuned Henry C300C30R amplifier to 250-Watts output into a set of TX RX Systems Vari-Notch 28-25-92358 4-cavity duplexers. From there, the signal goes through 25' of FSJ4-50B 1/2" superflex to the Polyphaser lightening protection. Transmit ERP is figured at a whopping 740-Watts. On the receive side, signals are first run through the duplexers, then fed into the TX RX Systems 11-14-06 dual-cavity bandpass filters before making its way to the receiver. The exciter and receive radios, along with the controller and link radio receive their power from an Astron RM-60M. In case of failure, a second Astron RM-60M is rack mounted and ready to run the system at the flip of a switch. The amplifier uses the internal 28 vdc Samlex power supply provided by Henry Radio. The repeater also has backup power in place. The battery UPS will hold power until the Onan power plant, powered by a Ford 460 V10 Turbo charged LP engine, is ready to go. The repeater itself, along with backup power, is located inside a ruggedized concrete building provided by the Springfield / Greene County Trunked Radio System Board.

Nets on This Repeater

20:00:00 on 53.2700 (162.20/None) - 6-Meter Net