Externally controlling a Mastr III is documented in the current station service manual. It may be in some of the older LBI's. It is not quite as easy as a Mastr II to hook up, but I would address the freq programming first as that needs to work before the rest matters... I was not able to move my high split to 2m. Freq programming not withstanding, the vco would not cooperate....
Doug KD8B At 12:54 PM 6/15/2007, you wrote: >I have a GE MASTRIII SXHM01 that is currently on the 151.505 >frequency. We believe this radio is 110 watts and was used for a base >radio at a construction company. The radio appears to be in excellent >shape. I need to know what is needed to convert this radio over to a >repeater for amatuer use? Any help would be great, as we are totally >new to the repeater business. > >Thanks >Steven > >

