This is the manual for the ROTR100:
http://www.antennasdirect.com/cmss_f...%20-%20PBI.pdf
And this is the Solid Signal listing; they have some reservations about what preamp is compatible.....please check it out.
http://www.solidsignal.com/pview.asp...ator-(ROTR100)
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18VDC at up to 80 ma. When pre-amp is not used, this is automatically sensed and the pre-amp power is switched off. We recommend only the Channel Master 0068 Pre-Amp
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Quote:
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Pre-amplifier Power +17VDC at 50mA (max)
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