Bob, I think I have to agree with Kevin on this one. Do yourself a big favor and invest in a piece of heliax, before you spend money on a preamp. It is a much better investment.
I use heliax, even if the run to the antenna is only 20'. I also use 1/4" superflex for cabling between the duplexer and radios. Get rid of any adapters used in the antenna leads, they often times can be a source of loss. As sensitive as those radios are, a high gain preamp may not be your best friend, as they may very well put the front end of the radio into saturation with a weak signal. I think about a 10 db overall gain is about as much as you want to shoot for. If you go with a ARR or angle linear preamp, a 6 - 10 db pad on the output of the preamp may be your best friend. Chip at Angle Linear offers a very good price to amateurs, only about $20 more than a ARR and well worth every penny. I think you have a pretty good combo going for what you are wanting to accomplish. If your coverage area is pretty close to the repeater, then a antenna with a lower angle of radiation may work better for you. In that situation, don't be surprised if the lower gain antenna provides better coverage for your close in users than a high gain antenna. Good Luck, Joe - WA7JAW --- In [email protected], "Bob Ricci" <b...@...> wrote: > > An Angle Linear is on the list, but out of the budget at the moment. >
