MobileTech NXDN Network

[ATCTech]

Here's what DSD+ reports from up here:

2020/03/17 14:36:34 Freq=153.500000 RAN=3 Current site: R13-67 Mobiletech Communications Fredonia Site 67
2020/03/17 14:37:15 Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-31; CC=42302 152.8775 Mobiletech Communications Attica Site 31
2020/03/17 14:37:15 Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-72; CC=41840 152.3
2020/03/17 14:37:15 Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-92; CC=41216 151.52

 

[ak716]

Getting a slightly better decoded today, Site 67, CC 42800 TX 153.500, RX 160.1700, Neighbor 92 - CC 41216 (151.5200

 

[k2hz]

Site 92 151.520 is probably WPQA246, Napoli, Cattaruaugus Co. That site should have good coverage, it is big tower on high ground (85m @ 646m AMSL).

It is odd that Site 31, Attica, does not have Site 67 on its neighbor list. Maybe the site is not yet in regular service.

 

[ak716]

Site 92 151.520 is probably WPQA246, Napoli, Cattaruaugus Co. That site should have good coverage, it is big tower on high ground (85m @ 646m AMSL).

It is odd that Site 31, Attica, does not have Site 67 on its neighbor list. Maybe the site is not yet in regular service.

I see Site 92, but its such a weak signal, I got no decoding

 

[ATCTech]

I'm seeing 92, no neighbors listed.

 

[ATCTech]

Update on 92:

 

[ATCTech]

I hadn't a name to 72 when I did that capture, sorry.

 

[k2hz]

I am watching the Site 31 NL for changes showing these new sites but nothing yet. It would be worthwhile to periodically check the NL data on Site 72, Centerville, 152.300 as well as Site 67, 153.500 and Site 92, 151.520. Looking at FCC license data, I think we will see more new sites.

WRAK659, Alma, is licensed for 151.670, 153.2075 and 153.680. Alma should have good coverage, 50m antenna height @ 775m AMSL.

 

[ATCTech]

Current capture of what Site 72 is reporting this morning:



Site 92:



and Site 67:

 

[k2hz]

Great! It looks like Site 39 is probably Alma. Do you hear anything on 153.680?

 

[ATCTech]

Not a thing at the moment. I've left DSD+ running using an Airspy. Hopefully the propagation picks up a bit.

 

[k2hz]

Not a thing at the moment. I've left DSD+ running using an Airspy. Hopefully the propagation picks up a bit.

I have a LTR-NET CC from Site 40 sitting on 153.680 so no way I can hear Alma at my location.

 

[k2hz]

k2hz - What is the maximum number of neighbors?

Something has changed with the neighbor lists for sites in my area - 8 used to be max but now I am seeing more:
Site 26 - 12 neighbors
Site 30 - 9 neighbors
Site 31 - 10 neigbors

I am checking to see if this is some anomaly in DSD+ before I submit anything.

Update - I am seeing most sites within my range are now reporting up to 12 neighbors.

 

[ATCTech]

I've captured 26, 31 & 32 in the past but from this far away it'll take better reception conditions than I have right now to see them today. I've never logged 30.

 

[k2hz]

I've captured 26, 31 & 32 in the past but from this far away it'll take better reception conditions than I have right now to see them today. I've never logged 30.

26, 31 & 32 are wide coverage sites. Site 30 at Savannah is not at a super high location and quite a distance from you. Depending on which frequency the Site 30 CC is on, there are also co-channel issues. It is on 153.3725 right now.

Can you receive Site 72, Centerville, 152.300 it is very marginal for me and the strong adjacent channel Site 31 152.3075 also adds the problem. It has been a while since I have been able to get the Site 30 NL data.

Are you able to get Site 62, Medina 153.620? It was very limited coverage in the past on LTR-NET and I found I had to drive to within a few miles of Medina to get it.

 

[ATCTech]

Right this minute there is a weak RF "lump" on 152.300 that may be 72 but DSD+ isn't detecting anything decipherable. 153.620 is a virtually flat line so no joy with it at all.

 

[k2hz]

I have just submitted the new, expanded, Neighbor Lists for the following sites: 12,26,30,31,32,35,42 & 68.
The CC frequencies on several sites were shifting around between the various site frequencies often today.
Since the Site 12 NL changed I suspect the other Onondaga, Oswego & Oneida site NLs have also changed.
It appears that 12 is the new standard maximum NL size for the system.

 

[R0am3r]

Something has changed with the neighbor lists for sites in my area - 8 used to be max but now I am seeing more:
Site 26 - 12 neighbors
Site 30 - 9 neighbors
Site 31 - 10 neigbors

I am checking to see if this is some anomaly in DSD+ before I submit anything.

Update - I am seeing most sites within my range are now reporting up to 12 neighbors.

The latest capture from the Pulaski site seems to indicate that 8 is no longer the limit. R13-48 now shows 10 neighbors.
R13-48 neighbor: Site R13-3; CC=41822 152.2775
R13-48 neighbor: Site R13-9; CC=40688 150.8600
R13-48 neighbor: Site R13-12; CC=42836 153.5450
R13-48 neighbor: Site R13-15; CC=41588 151.9850
R13-48 neighbor: Site R13-25; CC=40676 150.8450
R13-48 neighbor: Site R13-27; CC=41900 152.3750
R13-48 neighbor: Site R13-30; CC=40682 150.8525
R13-48 neighbor: Site R13-51; CC=41882 152.3525
R13-48 neighbor: Site R13-56; CC=41906 152.3825
R13-48 neighbor: Site R13-59; CC=40724 150.9050

 

[k2hz]

Good ducting conditions over night allowed me to get the expanded NL data from most WNY sites. It looks like we have all area sites in the RRDB now. What we are missing is sites in northern NY and possibly the Binghamton area.

 

[k2hz]

There is a licensed NXDN site, WRCG721/WRBQ398, at Warrick Rd, Owego that I believe is active since I heard a Corning school bus a few months ago say they were returning from Binghamton and were near Owego. The site is called "Endicott" on the licenses.

If anyone with DSD+ can receive the Site 69 Barton 150.830 or the Site 21 Ithaca 153.1025 CC and get the NL data, it should show this site. I have other site co-channel CCs in my area that block my reception of those sites.

If anyone in Jefferson or St Lawrence County (or adjacent Canada) has DSD+, there are numerous sites in the area that had been on LTR-NET that are probably now, or soon will be, on NXDN that have not been reported. Most CCs will be on Business frequencies between 150.8 and 153.8 MHz.