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South Carolina Radio Discussion Forum Forum for discussing Radio Information in the State of South Carolina.

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  #1 (permalink)  
Old 06-19-2012, 8:20 PM
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Default SC Dept. of Natrl Resources

I heard the DNR frequency referring to an incident at Barefoot Landing in N Myrtle Beach tonight, any one know what a Signal 6 is with the SC DNR?
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Old 06-19-2012, 8:34 PM
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SC APCO codes show: Send .......... to HQ
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Old 06-20-2012, 12:04 AM
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I heard that too & they asked if there were any injuries... I assumed that it was a boat accident of some sort.
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Old 06-23-2012, 10:12 AM
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Default Signal 6

Yes a signal 6 is a boating accident. In this particular case it was jet ski's.
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Old 06-24-2012, 9:21 PM
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Default DNR Encrypted, or What ?

In the last year I have heard fewer voice comms and more and more "buzzing" noises on the Georgetown and Aynor repeaters. Can anyone tell me what this is all about ?
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Old 06-24-2012, 9:44 PM
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What your hearing is P-25 digital. SCDNR has been using it a lot more lately.
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Old 06-25-2012, 11:09 AM
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Default P-25 Digital ?

I have P-25 capable digtal scanners, but they don't do anything for this. They work fine on P-25 trunking systems, so that is why I thought maybe there was something else going on here on the vhf repeater systems. If that is indeed the case, do you know what I can do to hear the P-25 traffic on the vhf DNR repeaters ?
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Old 06-25-2012, 12:05 PM
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MotoTRBO I betcha.
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Old 06-25-2012, 4:48 PM
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Quote:
Originally Posted by cobra View Post
I have P-25 capable digtal scanners, but they don't do anything for this.
None of my radios recognize the digital noise as P25 either. I could be wrong, but I'm wondering if it is some sort of data as it doesn't seem to last long enough to carry voice traffic.
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Old 06-25-2012, 5:21 PM
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If it's short data bursts that are inconsistent, it could be a beacon for roaming. We have a similar setup on a federal system in NC. It's short inconsistent burst in P25 and my scanner won't recognize it either.
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Old 06-26-2012, 12:20 PM
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That is what it sounds like Chris. Just short 1 or 2 second buzz-saw bursts, mostly ocurring just before midnight. Can you tell me more about how it works? I can hear it on a non-P-25 scanner whereas if it were a P-25 signal that scanner would hear nothing at all. My P-25 scanner does the same, so I don't think it is a P-25 signal.
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Old 06-27-2012, 12:15 AM
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Pretty simple concept, the system in use here has a common input and several different outputs. Each output transmits a burst of data. If a radio is setup for conventional voting scan, it will track and roam accordingly. This allows a wide area system to be condensed to a single personality in a radio. This can be done in analog with no beacon, but that is usually easier on busy systems. The DNR system is quiet a lot of tkme so I it needs that beacon to keep roaming and signal strength readings going to radios every little while.

There's always the possibility that they're using status messages or TMS featurss as well...but roaming beacons seem more prevalent.
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Old 06-28-2012, 4:44 PM
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OK, Thanks for that info. That's a new one on me.
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Old 06-29-2012, 11:49 AM
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They're not just short bursts. This morning on 151.325, the bursts lasted as long as ten minutes. Could it be data bursts for an in vehicle computer?
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