Okay. Noted. Thanks. Will take the Galaxy & RM amp to the McKinney Magician to dial them in a touch better.
Now to Low Pass Filters. The amp spec sheet. states it is so supplied. But let’s say it isn’t.
I’ve gone on line to look for a LPF. The name BENCHER comes up and it is discontinued at DX & Universal. (Another, older name which escapes me, in other threads). Only used ones at EBay & eHam & QRZ. (Don’t know the vagaries of used in this).
Assuming a good one found, it would be
Radio — LPF — Amp (correct?)
And if a quality 11-meter bandpass filter can built:
Radio — LPF — Amp — BF (?)
(The coax has gotten busy as already have a PALOMAR CMC Filter between the amp and the tuner. From there to the antenna feedpoint is another type PALOMAR feedpoint choke. Thus:
Radio — CMC filter — LPF — Amp — BF — Tuner — Feed Choke — Antenna.
Saying today’s big trucks are noisy is an understatement. As my pickup and travel trailer (the “real” base station) will also need optimum installs, it’s some fun to try out gear in the big truck.
1). Get radio/amp at 4:1 each
2). Low Pass Filter
3). Bandpass Filter
Given what I’ve read at this site this may not have the effect of cutting spurious emissions. But is it not a start?
I wish to cut noise, but also not create any. It’s a while later 2019 till a better mobile radio, gentlemen.
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