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If using voice inversion, do repeaters have to have inversion boards, too?

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thorosaurus

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If you're using commercial radios with voice inversion boards, can you use just any repeater, or does it have to have the options boards as well?
 

mancow

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No, it just gables the voice band so it's transparent to repeaters.
 

thorosaurus

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No, it just gables the voice band so it's transparent to repeaters.
I thought so, but I wasn't sure. So basically the repeater will just repeat the garbled signal, and the guy on the other end, as long as he has an inversion board, can still unscramble it?
 

N5XPM

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Yes. An analog repeater just repeats out the other frequency a very slightly degraded version of what it receives. With a good, full-quieting FM signal on the repeater receive channel, the output signal should be an almost perfect reproduction of what is received, scrambled or not. If the signal is invert-scrambled and full quieting and the scramble settings are the same on the receiving radio, it should be easily unscrambled by the radio the guy on the other end.
 

a417

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...totally means I installed that MTR2000 inverted for no reason.
 

N5XPM

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...totally means I installed that MTR2000 inverted for no reason.

Not necessarily. In a colder climate installing the repeater inverted may help keep it warmer by reversing the cooling airflow.
 

thorosaurus

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For me its a tossup, I can sometimes make out a few words listening to inversion scrambling and about the same with French......
That's kind of an interesting analogy. The scrambler is kind of like a computer generated pig latin that's automatically translated by another computer on the other side.
 

mancow

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I had an old BC560XLT in my truck in high school. I was driving around with some girl when the local PD went secure using Transcrypt 460 rolling code. She asked if cops have to "learn that language". o_O
 
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