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Radio League
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145.47 Repeater Technical Description

GE Mastr II

The Repeater

The 145.47 repeater is a GE Mastr II.  This is a commercial unit that has been converted to ham radio repeater use.  Example modification steps are found here.  The modification also requires that the appropriate crystals for transmitting and receiving be replaced and that the repeater be tuned following the steps in the service manual.  Fred Moore - N4CLA, our repeater maestro, performs these modifications.

The Controller

The Pion and Simon PSE508 controller card is the heart of the 145.47 repeater.  It is designed to be plug and play in the GE Mastr II card cage.  The controller provides all command functions to control the repeater including: