Need a little help

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firemedic2150

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I thought I understood how to decipher a Motorola UHF system, but I was wrong.
I have all of the output freq's right, but I cant figure out how to associate the inputs with them.

Mark Mc.
 

WayneH

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In the sys file replace the field which is filled with "ffff." It's, counting from the left, after the second comma.

So if you had like " dv406.1625,18e,ffff,ec5" and you knew the input ID was 17 it would be " dv406.1625,18E,17,ec5"

-Wayne
 

jim202

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On the UHF band the input frequencies to the repeaters is 5 MHz higher than the output. An example of this is say you have 461.200, then the input would be 466.200. Another would be 453.225output, the input would be 458.225.

At 800 MHz the input is 45 MHz below the output.

At VHF it's anones guess where it will be. There never was a band plan set up and that's why there is such a mess at the 150 MHz range.

Hope that points you in the right direction.

Jim



firemedic2150 said:
I thought I understood how to decipher a Motorola UHF system, but I was wrong.
I have all of the output freq's right, but I cant figure out how to associate the inputs with them.

Mark Mc.
 

inigo88

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Hey Wayne,

I have a row of input IDs above my output freqs on trunker. When I checked the file the input ID was already associated with its output freq, so why are all those input ID lines still there? Can I delete them? I've noticed they do highlight (with "I" in the type field) occasionally but only in tandem with their output freq.

Thanks,

-Inigo
 

firemedic2150

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OK I have 4 diffrent answers but none seem to fit....

I have the output frequencies and their associated hex values of a Motorola UHF TypeII Trunked Radio System. I have all of the output frequencies decoded, how can I find what input goes with what output? I fully understand where they go, just don't know how to get them paired up. Do the input frequencies track the output frequencies, if so what is the formula to find them?

Mark Mc.
 

eyes00only

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Need to define what YOU mean by INPUT FREQS. The true input freq IS ALWAYS 45MHz less than the output in the 800MHz range (for trunking).

Jerry
 
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