AMARC KAMC Repeater System 1.

The Six Meter AM Repeater System


This repeater system is a split site repeater, with the 6 meter AM receiver located in High Ridge, MO, and the 6 meter AM transmitter located in Barnhart, MO.

The High Ridge Site consists of a UHF FM repeater connected to a 6 meter AM receiver. The Barnhart site consists of a UHF FM receiver connected to a 6 meter AM transmitter.



The High Ridge Six Meter AM Receiver and UHF Repeater System

This equipment receives 5.4 mhz AM, Carrier Squelch, and at 449.75 mhz, with a PL Decode at 192.8 hrz

Both Receivers re-transmit at 444.75 mhz with a PL Encode at 192.8 hrz.

The 6 meter AM repeater cabinet shares space with the 146.925 mhz 2 meter duplexer.


Equipment consists of a RCI Ranger RCI-554DX Radio which is used as the 6 meter AM receiver.

There is a military surplus 6 meter 4 helical coil, band pass filter, in line to the receiver and antenna.

The 6 meter receiver, and the UHF repeater receiver, are re-transmitted by a Vertex VXR-5 UHF Repeater with 3 Watts out-put.



The Barnhart Six Meter AM Repeater Transmitter System

This equipment receives the High Ridge 6 Meter AM receiver at 444.75 mhz, with a PL Decode at 192.8 hrz

The repeater re-transmits at 5.5 mhz AM.


Equipment consists of a RCI Ranger RCI-554DX Radio which is used as the 6 meter AM Driver.

It puts out 8 watts AM and modulation swings to 15 watts output.

The RCI-5054DX Drives a modified Mirage M-115G 6 Meter RF Amplifier to the antenna.

The M-115G RF out-put is around 8 watts, and modulation swings to 15 watts.

The Link Receiver is a Vertex FTL-7011-24 Commercial Business Radio.

The Mirage 6 meter AM Amplifier is powered by a Astron RM-5M power supply.

At the top of the rack is a Vertex UHF repeater for GRMS use. It has nothing to do with the 6 meter transmitter, other than it has a backup battery supply, and it powers the Vertex transceiver and the RCI-554DX. If AC power goes down the 6 meter transmitter will stay on at 1 watts out-put.


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