Apparently not on the air yet. No change in the Olean Site 64 Neighbor List.
MobileTech NXDN Network
- Thread starter DSheirer
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I have this in a V-folder as four individual sites. Monitoring near Baptist Hill I got a capitol S and capitol T on each individual site. But the reception on Baptist is exceptional and I could have been picking up signals from elsewhere. School starts toward the end of the week so there could be activity by then.
What frequencies were your observing activity on?
Using this
FCC Callsign WRJD969 (MOBILETECH COMMUNICATIONS)
FCC Callsign WRJD969 (MOBILETECH COMMUNICATIONS)
www.radioreference.com
I set up four individual LOCATIONS which I could monitor as a whole or as individual sites. In my main V-Scanner Folder they are grouped as one. And I do receive a signal at home. In my TRX-2 I have this as its own trunk with the Wildcard! set to record any activity. That is if it stops on a new TGID it will record the sound and on playback will display the ID. When and if I add a TGID I will also set THAT to record to determine who is talking. I additionally add an RID Wildcard! which is something I have been playing with lately.
Each of the 3 main sites on the license (3, 5, 7) has an existing Mobiletech CC in the area. 152.975 is Alfred, 152.990 is Avoca and 151.9625 is Penn Yan. Penn Yan is probably not an issue but you should have strong signals from Avoca and Alfred in the area. How do you have it programmed as trunk without the Site Number/RAN?Using this
FCC Callsign WRJD969 (MOBILETECH COMMUNICATIONS)
FCC Callsign WRJD969 (MOBILETECH COMMUNICATIONS)www.radioreference.com
I set up four individual LOCATIONS which I could monitor as a whole or as individual sites. In my main V-Scanner Folder they are grouped as one. And I do receive a signal at home. In my TRX-2 I have this as its own trunk with the Wildcard! set to record any activity. That is if it stops on a new TGID it will record the sound and on playback will display the ID. When and if I add a TGID I will also set THAT to record to determine who is talking. I additionally add an RID Wildcard! which is something I have been playing with lately.
On Baptist Hill, actually Coryland Park, with a magmount, the signal strength on each was five bars. That and the capitol T means I probably wasn't getting those.
You must not be familiar with Whistlers. Using either a Wildcard! or a conventional frequency, the scanner will display the RAN. It will additionally log the RAN internally(hexadecimal) along with any TGID associated with it. The TRX-x only monitors voice frequencies and ignores NXDN CC''s.
OK but on what frequencies were you receiving the " 5 bar" signals? I had an early TRX-1 and got rid of it. I guess they fixed the software bug that would hang on CCs and the fix was to lock it out in which case you missed any subsequent voice on the frequency. With the frequency reuse and overlap in the Mobiletech system you will probably be receiving voice signals from other sites.
How do you know the 5 bar signals were NXDN and/or Mobiletech. Mobiletech still has LTR-NET CCs up in many areas. Did you try to listen or do any analysis on the 5 bar signals to see what they might be?
How do you know the 5 bar signals were NXDN and/or Mobiletech. Mobiletech still has LTR-NET CCs up in many areas. Did you try to listen or do any analysis on the 5 bar signals to see what they might be?
I was thinking of Bradford vs Bradford County when I thought Olean or Alfred would be neighbors. The most likely sites to have the Troy system in their neighbor lists are Barton, Horseheads and maybe Corning. Both Horeseheads and Barton are impossible for me due to co-channel. I am watching Corning to see if signal builds up enough to catch the NL.
I really need someone who can get the Barton NL to see what is going on with any buildout to the east and south of the Corning area.
I was wondering how you arrived at that.
I don't, I was only thinking MobileTech at the time. I just got back from Mt. Pisgah where I just tried the same test and got dead air for my trouble. I also tried it down in the other park area where I think is Entrance Road and got nothing there as well. When this becomes active I may program each location into its own V-Scanner Folder with a combination Scanlist 1 conventional and Scanlist 2 Trunked.
Until the system is in service, CC activity may be sporadic and finding voice channels is obviously dependent on activity. Monitoring the system is difficult because of the heavy frequency re-use throughout the system including the legacy LTR-NET channels. Control channel data is really the key to identifying a site and is essential for programming most scanners or SDR software to track the system. In many cases, more that one license applies to the site and/or the frequencies are licensed to multiple adjacent sites. So, what appears on a particular license may not reflect the actual active channels at that site.
An added complication is finding licenses since the licensee may be Mobiletech, The Pfeiffer Group or Terry Pfeiffer. A site area DB search may be necessary to find all the relevant licenses. All this is why adjacent site NL data is generally the key to discovering and documenting new sites.
All this makes it difficult to attempt to monitor the system with a TRX scanner that needs to know all site frequencies and can not track the system based on only entering the control channel.
An added complication is finding licenses since the licensee may be Mobiletech, The Pfeiffer Group or Terry Pfeiffer. A site area DB search may be necessary to find all the relevant licenses. All this is why adjacent site NL data is generally the key to discovering and documenting new sites.
All this makes it difficult to attempt to monitor the system with a TRX scanner that needs to know all site frequencies and can not track the system based on only entering the control channel.
As I have monitored the LTR-NET for over a decade I am aware of the other names used. I only searched for MobileTech. While I have successfully submitted NXDN sites in the past I have no intention of submitting this one. The complexity, lack of proper tools, and inexperience rule me out.
You can be very helpful if you can just identify any active CC frequencies and any voice channel frequencies where you can get the RAN and post it on here to gives clues for others to follow. Also, if you can ID any TG users, please directly submit that. It does not matter what site they are on, just match the TG to the school or other user based on observed names or addresses,
That was the main reason for posting the license, as I knew there were those interested in. I probably won't be much help with CC Frequencies. And there are administrators here that are familiar with my "log excerpts" which I may post. Being that Troy High School is my Alma Mater, who I blame for my poor math skills, when I get a new ID I may actually know who or what they are talking about.
If you can just report when you hear what sounds like NXDN CC on a frequency when listening in conventional mode that will help. That is why I persisted in asking what frequencies were giving the 5 bar indications. If I have a suspected distant CC frequency, I leave DSD+ running overnight to see if I can at least catch the RAN from ducting or aircraft reflections.
Iv'e been doing that with Industrial Electronics. I generally program an NXDN trunk into a Pro-167 or Pro- 106 and analyze the trunk. I have found that the "suspected" CC, for IE anyway, has a distinct sound pattern. I have yet to try it with MobileTech. It's not perfect but it's a place to start.
And one of my pet peeves is that MobileTech sites are usually entered into the DB with CC only. Us Whistler owners rely on voice frequencies.
Sorry, but only confirmed data/usage is entered into the RRDB. We're not going to dump frequencies from an FCC license into a site just to cater to Whistler users. Whistler chose to implement a dumbed down version of DMR/NXDN scanning, rather than paying the royalties like Uniden did to actually decode control channels.
The irony is that Uniden scanners will decode the MobileTech system without any voice channels entered, because it's a DFA (Direct Frequency Access) system, and the control channel directs the scanner which traffic frequencies to tune to (similar to how P25 systems work with an OTA band plan).
I hate to beat the dead horse here, but it was suggested to you over a year ago in the Industrial thread, and again last week in this thread, to get a $20 dongle and $10 subscription to DSD+ Fast Lane. Then you could actually verify the control channels, neighbor lists, traffic channels, etc. without fumbling through it with a scanner that will never be able to provide the full picture.
They are entered with CC frequencies only because nobody has submitted the voice channels. If a frequency is known, it is submitted.
As I said before, unconfirmed licensed frequencies are of no value and may be a detriment since they may be for a different site or have unrelated activity that just slows down the scan. I found the way the TRX handles NXDN and DMR to be very poor and frustrating to seriously monitor a busy system.
As I said before, unconfirmed licensed frequencies are of no value and may be a detriment since they may be for a different site or have unrelated activity that just slows down the scan. I found the way the TRX handles NXDN and DMR to be very poor and frustrating to seriously monitor a busy system.
If you ever take the leap with the RTL SDR dongle and DSD+ Fast Lane combo, look no further than RR for help. DSD+ FL can be daunting if you try to throw every option at it. The simplest command line string is usually the best approach. I like to think of DSD+ FL as my Swiss Army Knife for decoding radio signals. It is definitely worth the money.
I was looking for something to put one of my dongles on so I gave this a try. I found site-67 which according to fcc records is Arkwright NY which makes sense looking at signal strength and the neighbor sites. Here is the info. Just to note site -70 Boston which is almost next to my house is still LTR.
freq=153.500000 RAN=3 R13-67 neighbor: Site R13-31; CC=42794 153.4925
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-64; CC=42296 152.87
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-72; CC=41840 152.3
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-92; CC=41216 151.52
Sorry. I was looking at the LTR system. Once I found the Nexedge system I see you have this info,
freq=153.500000 RAN=3 R13-67 neighbor: Site R13-31; CC=42794 153.4925
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-64; CC=42296 152.87
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-72; CC=41840 152.3
Freq=153.500000 RAN=3 R13-67 neighbor: Site R13-92; CC=41216 151.52
Sorry. I was looking at the LTR system. Once I found the Nexedge system I see you have this info,
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I am seeing many new TGs registering on the system, most apparently in the Southern Tier area. They are not active on sites where I can monitor voice communications but I suspect all or most are school bus systems: 18, 30, 58, 69, 71, 72, 73, 74 & 89. If I can hear any to at least confirm school bus I will submit to get them in the DB.
There are also 2 listed TGs, probably Central NY area, that are not yet identified to a particular school system: 33 & 48.
I was able to catch some activity on the Site 2 Alfred CC this morning to submit a site voice channel. We still need voice channels for many sites.
If anyone in the Chemung County area can monitor Corning, Horseheads or Barton CCs, we need NL data for probable new area sites such as the 3 for the Troy, PA area schools and possible sites in NY east of Barton.
We also need someone who can monitor the Rutland (Watertown) 150.860 CC NL for probable sites in the St Lawrence County area. A check of existing LTR-NET channels in the area for NXDN activity, especially Malone and Massena, may be worthwhile.
There are also 2 listed TGs, probably Central NY area, that are not yet identified to a particular school system: 33 & 48.
I was able to catch some activity on the Site 2 Alfred CC this morning to submit a site voice channel. We still need voice channels for many sites.
If anyone in the Chemung County area can monitor Corning, Horseheads or Barton CCs, we need NL data for probable new area sites such as the 3 for the Troy, PA area schools and possible sites in NY east of Barton.
We also need someone who can monitor the Rutland (Watertown) 150.860 CC NL for probable sites in the St Lawrence County area. A check of existing LTR-NET channels in the area for NXDN activity, especially Malone and Massena, may be worthwhile.
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