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Old 10-11-2018, 7:56 PM
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Default PRO-197 scan issue

I have just picked up a Pro-197 scanner and I have my local system programmed in it (Central Maryland Radio Committe 700 MHZ APCO-25) the radio will scan and stop on a channel, I can see that it is receiving something but I cannot hear anything. The signal master jumps around (it doesn’t stay steady on a certain reading) I know the speaker works, the radio will revive stations just fine when I turn the volume up I just hear a light hissing sound.
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Old 10-11-2018, 8:16 PM
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Originally Posted by 1977addis View Post
I have just picked up a Pro-197 scanner and I have my local system programmed in it (Central Maryland Radio Committe 700 MHZ APCO-25) the radio will scan and stop on a channel, I can see that it is receiving something but I cannot hear anything. The signal master jumps around (it doesn’t stay steady on a certain reading) I know the speaker works, the radio will revive stations just fine when I turn the volume up I just hear a light hissing sound.
Pro-197 Is Phase 1 I Believe MD 700 Is Phase 2.

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Old 10-11-2018, 8:22 PM
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Default i see phase 1

unless phase 2 is in a different area.
i did see some encryption, maybe there is more now.
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Old 10-11-2018, 8:38 PM
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Pro-197 Is Phase 1 I Believe MD 700 Is Phase 2.

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CMARC is Phase 1


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Old 10-11-2018, 10:48 PM
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Hum IDK I don't Live In MD Was Just A Guess.

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Old 10-12-2018, 7:47 AM
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Default 700 Mhz

Good Morning 1977addis. If you are familiar enough with the Pro 197, you may want to consider running a Limit Search for say, 768.0000 thru 775.0000. If you do that the 197 is great for landing on any control channels that lie in within range of your system. That will give you an excellent idea of what you can receive and decode, and what you may not be able to. It could simply be that the transmitter is just a little far away to receive all of the data, most likely an encryption though. Hope this helps, take care up there
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