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Old 06-18-2017, 8:17 PM
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Default Squelch mystery

I can't get any squelch noise on my Uniden BCD436HP scanner, for some reason.
The scanning works normally, but when I press the Function button and press down on the control knob to bring up the squelch control ... and then rotate the knob all the way in both directions, I get no squelch at all although I can still hear the transmissions.
Is there some other squelch control setting that I am not aware of and Ive inadvertanly turned it off? Im baffled. I thought if you rotated the knob far enough in one direction, you'd always hear squelch.
Many thanks.
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Old 06-18-2017, 8:20 PM
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Are you listening to a digital system. There is no squelch noise on digital channels.

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Old 06-18-2017, 8:28 PM
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I'm afraid I have no idea if these are digital channels ... and I dont know how to find out. I just got my scanner and am learning from scratch ... what Im listening to is emergency services in southern Ontario, Canada ... ambulances etc.
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Old 06-18-2017, 8:30 PM
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I don't know much about Canada sorry look up the system name on in the radio reference db that will let you know if your system is digital or not.

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Old 06-18-2017, 8:34 PM
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ok. thanks for your trouble
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Old 06-18-2017, 8:35 PM
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No trouble I hope you get better acquainted with your new scanner it really is quite fun once you get the hang of it.

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Old 06-19-2017, 8:28 AM
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The only time you would hear squelch noise while scanning is when you are scanning a conventional (non-trunked) set of channels and at least one of the channels does not have a PL/DPL set. Otherwise, audio path control is handled by control signaling. If you want to hear the squelch noise, start a service or custom search.
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Old 06-19-2017, 6:19 PM
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thanks for the info.
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