I was just covering all the frequencies for the Boone Mtn site but I'm going to try running it again with only the 3 active I have heard.
Elk County new radio system
- Thread starter wa8pyr
- Start date
Just a small update. I got rid of the two frequencies that weren't active and restarted LCN finder and I'm up to 2/3 found now.
453.775 LCN is 63 and 453.875 LCN 71 the LCN finder still listed 460.375 as LCN 0
Which is standard 12.5 kHz spacing channel plan for a UHF DMR Tier 3 trunked system.
453.350 = LCN 29 (LSN 59-60)
453.375 = LCN 31 (LSN 63-64)
453.775 = LCN 63 (LSN 127-128)
453.875 = LCN 71 (LSN 143-144)
460.375 = LCN 591 (LSN 1183-1184)
460.475 = LCN 599 (LSN 1199-1200)
Thanks for the info! I'm new to trying to map out DMR systems.
Once you’re confident in what you’ve found, make sure to submit to the database. Thanks for putting in the effort!
I'm pretty confident in what information I have but I'm going to monitor the system for at least another day or two before I put in a submission.
Hard to find much online for that corner of the world. There is this: 'Critical' new 911 emergency tower completed in Elk County
That's something that I need to get. I vacation in the area once or twice a year and just enjoy listening to what's not listed on RR in the area.
An SDR setup is really the way to go with these systems, especially for trying to figure them out. The Uniden LCN finder is inefficient and doesn't paint the whole picture. That and Uniden treats some Tier 3 DMR systems incorrectly, spitting out bad System ID or Site ID or other parameters if it assumes it's a standard T3 system. There are a few variations these days, even DSD+ gets it wrong sometimes.
The information my SDS200 gave me seems to be tracking the system very well from where I was located so I'll probably type up a submission later today and next time I'm up there I'll have an SDR and correct anything that I may have missed. There seems to be only 2 active talkgroups that I have seen in the 36-48 hours I monitored and recorded the system.
Progress on said submission?
Shoot I completely forgot about that. I'll work on that tonight or tomorrow morning.
Submission is typed up and submitted. Sorry it took so long, work has been crazy the last few weeks.
Keep in mind that more of the frequencies could actually be in use but may not be seen active unless the system is really busy. There are two timeslots per channel (two voicepaths per channel), and depending upon how the system is configured it may never trigger activity on the additional frequencies until such time that the two voice channels that you logged are active with conversations on both timeslots (more than 4 separate talkgroup conversations at the same time). So adding what you submitted will be helpful, but it may not be the end of the story. And if they really do have a second CC set up, you'd never know it unless they either have CCs set to rotate (they rarely do that on T3 systems) or the primary CC repeater goes down and it reverts to the secondary.
So there is probably more to the system that is "active in their configuration" that what meets the eye. Time will tell. I don't know how much traffic / how many talkgroups they eventually end up supporting on that system.
ideally if somebody up in Elk Co could use DSDplus or SDRTrunk to determine information about this system it would be better. It seems to be clearly a DMR TierIII NonStandard system, but the SdS200 won't tell if it's a Motorola Capacity Max system or some other flavor. DSDplus and SDRTrunk would reveal that information.
My plan is to take my Air Spy SDR and DSD+ setup when I go back up there in October for about a week to get a better layout of the system. I have DSD+ already but I'm not super computer savvy so I'm still learning how to set it up properly.
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