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My point is, where is the energy above 3Khz comming from?? Unless it is background music or road noise.? The audio spectrum from the human voice isn't there.? The idea of getting AM broadcast to

On a 'news gathering link' service I assisted running, basically a 150KHz wide FM repeater we found a pirate station trying to use it. We had remote control of the settings and when not using it

Flat audio really means no de-emphasis in the RCVR being coupled to the TX with no pre-emphasis. Hopefully with less processing. Of course on a PM radio vs. a FM modulator means something different. A

I think you mean ingenious

Literally hundreds of 440 repeaters in this area have audio responses approaching 6 kHz, & no one has had to modify their RXs to hear them. Much above, actually. The last squel

On the GE MASTR PRO, there are a couple of capacitors you need to remove to get the perfectly audio flat. This applies to the MASTR imperial as well. The caps are C-16 and optionally, C-21. Andy

I agree with you, Bob, that most important of anything is a post limiter filter that will roll off as steeply as practical above 3KHz, with a sharp knee so that below say 2800 is not affected. Seems

The above two paragraphs contradict each other: if the spectral energy above 3 kHz is "QUITE low", then that spectrum will not be deviating the TX anywhere near 5 kHz, hence the BW will not be

I'm 59 & my hearing is fine, yet I also prefer to go higher than 3 kHz on my repeat audio. I maintain several XPR8300/8400 repeaters set to flat unsquelch audio to give them the best frequency

Hi Chris, Thanks for your comments and observations. On my repeater... no, I don't run the audio out to 5 kHz, but at the same time I don't have the sharp 2.5 or 3 kHz cutoff that many systems have.?

Jim, Thanks for your reply, and no, for some reason I did not see it earlier.? Are pins 9 & 34 a balanced pair?? How are they coupled in so as to have wide band audio? Electronically balanced,

What did you get before the move, you may need to replace inter can cabling or other components to go 20mhz

This is very ingenuous... You get my Award for the effort. I think you mean genius ?

Paul? w0rw

Don't know about you men, but at 79 yrs old my hearing aides make all, especially Motorola speakers sound more intelligible, much less muffled, and because of the aide's high frequency pre-emphasis,

I've done flat audio in the pass but always use a RC filter to roll off above 3-4khz...no need to go higher as the energy in that area is QUITE low and not needed..I've made GE MVPs rptrs with flat

i have a R1225 that i use a laptop running windows 98 running using a real RIB and Cable and CPS 4.0 and since mine didn't have a control head what i use to program it is the Knob/Mic port assembly

There’s several Moto RSS/CPS that will appear to be working on 64 bit hardware loaded with a 32 bit Windows or 32 bit virtual machine, but they won’t communicate with the radio. Been there with

Ok guys... You bring up a lot of interesting points, but nothing new to me.? Let me say that I've been in the 2-Meter repeater business for over 60 years.? I've always prided myself in good

When I first saw the question, I scratched my head and went on to other things.? It looked wierd.? Then I remembered why. If you are actually going to feed audio up to 6 khz. to the modulator, where