Ralph S. Turk wrote: > I have never seen or used a Hamtronics preamp. I don't know > anything about their specs or how truthfull they are. Maybe some > one out there in the great bits might have an answer. Skip? Eric? anyone??
I've been using one of their Gaasfet UHF preamps on UHF ham repeaters for nearly 20 yrs, and have had excellent results. I'm not using one with helicals, though, because, well, I just didn't need them. Repeaters have been either Motorola MSY (Motrac-style) or Micor. The only hitch is that the case they supply these in is open on the bottom, so it NEEDS to be screwed down to the metal chassis of the repeater somewhere. It CANNOT hang on the coax, like I've seen some do with ARR's, or screw to the wood or plaster wall.
