Unknown NXDN Frequencies

Discussion forum for scanning Eastern Massachusetts, including Norfolk, Suffolk, Middlesex, and Essex counties, as well as the greater Boston metropolitan area.
Post Reply
Message
Author
TheDoza79
Posts: 66
Joined: 28 Jul 2016 10:33
Location: Salem, NH

Unknown NXDN Frequencies

#1 Post by TheDoza79 » 21 Nov 2018 21:03

WQOF498 (Quimby, William P)
471.49375
471.53125
483.76875

The designators on these frequencies claim that they are nextedge. Has anyone heard any traffic on these frequencies? I don’t have a scanner that can pick up nextedge so I can not hear any traffic on them.

n1zyy
Posts: 57
Joined: 29 May 2017 20:56
Location: Lowell, MA

Re: Unknown NXDN Frequencies

#2 Post by n1zyy » 03 Dec 2018 14:16

I plugged them into my scanner out here in Lowell and ran LCN Finder for about an hour with no hits. That said, it's entirely possible this is not a trunked system, or that it's not strong enough to show up for me.

User avatar
garys
Posts: 3186
Joined: 29 Aug 2005 13:07

Re: Unknown NXDN Frequencies

#3 Post by garys » 04 Dec 2018 10:14

These are licensed to Quimby on Baldpate Hill. My guess is that it will be part of a NXDN trunk system to replace or add to the existing LTR systems that are run under the Dispatch Communication/Metro Repeater name.

Maybe they will be conventional, but I'd be more willing to bet that it's going to be trunked.

As you now, Baldpate has good coverage through most of the eastern MA, southern NH, even into southern ME. I can sometimes receive it down south of Boston in the shadow of Big Blue.
n1zyy wrote:
03 Dec 2018 14:16
I plugged them into my scanner out here in Lowell and ran LCN Finder for about an hour with no hits. That said, it's entirely possible this is not a trunked system, or that it's not strong enough to show up for me.

n1zyy
Posts: 57
Joined: 29 May 2017 20:56
Location: Lowell, MA

Re: Unknown NXDN Frequencies

#4 Post by n1zyy » 04 Dec 2018 11:02

I'm in a bit of a valley with a big hill between me and Baldpate, so some Georgetown stuff comes in fairly weak for me. The stuff near the top of the tower putting out several hundred Watts comes in a little scratchy but readable on analog. I assume this would end up on the same antenna as the other County Comms stuff up there, but I just want to make sure no one's taking my lack of signal as definitive proof that something's not on the air. ;)

Quimby is County Comms, isn't it? And Unkles is Metro/Dispatch? County already has an active system up there I started listening to yesterday, but perhaps they're expanding it.

User avatar
garys
Posts: 3186
Joined: 29 Aug 2005 13:07

Re: Unknown NXDN Frequencies

#5 Post by garys » 04 Dec 2018 11:32

I always reverse those two. You're right, Quimby is County Communications. There's even a website for the company.

Yes, there is an active County Communications NXDN site on Baldpate. Occasionally, I can copy that one down here, but I get better copy north of Boston.
n1zyy wrote:
04 Dec 2018 11:02

Quimby is County Comms, isn't it? And Unkles is Metro/Dispatch? County already has an active system up there I started listening to yesterday, but perhaps they're expanding it.

User avatar
schwab
Posts: 533
Joined: 13 Apr 2010 11:16
Location: Rollinsford, NH

Re: Unknown NXDN Frequencies

#6 Post by schwab » 04 Dec 2018 12:27

FWIW, there is an NXDN control channel being transmitted from Mt Agamenticus in York, Me. on 452.4125. I don't have the ability to monitor NXDN trunking, so I don't know any details about this freq (or even which system is belongs to, it isn't licensed), but I thought I would point it out.

n1zyy
Posts: 57
Joined: 29 May 2017 20:56
Location: Lowell, MA

Re: Unknown NXDN Frequencies

#7 Post by n1zyy » 05 Dec 2018 01:17

schwab wrote:
04 Dec 2018 12:27
FWIW, there is an NXDN control channel being transmitted from Mt Agamenticus in York, Me. on 452.4125. I don't have the ability to monitor NXDN trunking, so I don't know any details about this freq (or even which system is belongs to, it isn't licensed), but I thought I would point it out.
Interesting! That must be the Maine entry on http://www.countycomm.net/NexedgeCoverageMap.html -- looks like there may be a Boston site as well? I suspect I'm too far away to get a reliable signal from Agamenticus, though I was up there a few years ago and coverage was pretty swell.

I wondered if the 6.25 kHz spacing may have led to the frequency being slightly off from .4125, but I see only one license between 452.4 and 452.425 with a location (geosearch) anywhere in Maine, and it's WQNW724 simplex at a campground in Saco.

User avatar
schwab
Posts: 533
Joined: 13 Apr 2010 11:16
Location: Rollinsford, NH

Re: Unknown NXDN Frequencies

#8 Post by schwab » 05 Dec 2018 18:21

452.4125 was licensed to County as WQEX639, but it expired in 2016.

User avatar
garys
Posts: 3186
Joined: 29 Aug 2005 13:07

Re: Unknown NXDN Frequencies

#9 Post by garys » 05 Dec 2018 20:30

It doesn't seem that the FCC data always matches the actual use of a frequency. Whether that is companies forgetting to renew their licenses or lag in the FCC database, I can't say.


schwab wrote:
05 Dec 2018 18:21
452.4125 was licensed to County as WQEX639, but it expired in 2016.

n1zyy
Posts: 57
Joined: 29 May 2017 20:56
Location: Lowell, MA

Re: Unknown NXDN Frequencies

#10 Post by n1zyy » 06 Dec 2018 22:35

schwab wrote:
05 Dec 2018 18:21
452.4125 was licensed to County as WQEX639, but it expired in 2016.
Oh, interesting -- the wiki lists that on their old LTR page: http://scan-ne.net/wiki/index.php?title ... requencies

Post Reply