kayn1n32008
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We're limited to 50' by the tower. We have one of these Telescoping Fiberglass Push-Up Masts - Max-Gain Systems Inc and like it a lot better than our old metal tower that was really really hard to put up and take down by hand with a bunch of volunteers.
We're at 13MHz difference between the two repeaters (I have a third frequency pair assigned that is only 50kHz off another pair that I don't use).
And yes, I've considered a transmitter combiner, but the cost of that + the cost of the amplifiers needed to overcome the 3dB insertion loss are a bit out of my price range.
3dB of insertion loss is SFA, I would guess you are using portables? 4w to the system, and you likely are transmitting 25w+ before system losses? Take the 3dB hit. Transmit power is not everything. Dump the LMR feedline, and get a higher gain antenna to overcome feed line losses.
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