State of NC 800Mhz System

[Robbyboy]

Good Morning Everyone

Upon looking around on the FCC Licence search , I noted that the state of NC has several sets of 800Mhz frequencies licenced, but I havent heard any transmissions from them for the last two days now. Anyone know what they are used for? (I am monitoring the frequencies that have transmitters in Onslow County)

Thanks
Robert
(CFP933) Monitoring Onslow, Carteret, Craven, Jones, Lenoir, Duplin, and Pender Counties.
Onslow County Fire 1497 - Richlands VFD Station 14

 

[CCHLLM]

They're currently used for the MDT system in the cars and most LE agencies in NC have also signed on to it. The NCSHP is the coordinating agency for 800 trunking in NC. In major NC metro areas where there is already 800 trunking in place, the metro area and the state share their licenses with each other for more system flexibility, and the SHP low band for that area is being multicast on 800. The SHP units in those areas are carrying Motorola XTS3000 portables so that they have the interoperability that is one of the goals of the system. The system will be expanded statewide to analog voice, then digital over the next 5 years or so in an equipment trade-out deal with Motorola.

 

[fmon]

I will be traveling through NC on US 17 on the 3rd and 4th of Oct, with an RON at New River MCAS RV Park on Sunday.

I have these frequencies in conventional mode in a Pro-2052 and I bet they are CC's and need to be in a Mot Trunked Bank. If so, I can place them in a BC785D in a bank with CC only settings since they match Plan 1.
855.9625 Pender
854.6375 Craven
855.2125 Jones
860.7125 Bertie

I could not find a freq for Onslow.

Also, whats the deal on the VHF and UHF systems in Brunswick County?

Thans for any help.

 

[CCHLLM]

Looks from the listings like Brunswick is headed toward trunked systems. Sad to say I haven't been there recently enough to check what's really on the air in what form, and what, if anything, remains of the old system. From what I heard last maonth while there, County Fire dispatch is still 154.415/PL 186.2. Noo Hangover went 800 trunked a good while back, but there are some VHF and UHF conventional stuffs hanging on like a hair in a biscuit. County Fire paging is done on 154.295 as far as I know. Hopefully someone from the area will pop in and inform us what's which.

 

[jeffmulter]

>> 855.9625 Pender
>> 854.6375 Craven
>> 855.2125 Jones
>> 860.7125 Bertie

The Pender, Craven and Bertie County frequencies should all be conventional data channels for use with the VIPER system ... based on the license class and emission designators.

The Jones County frequency is actually licensed to Pitt County / Pitt County Memorial Hospital. This one caught my attention, as the frequency has been previously logged as used by the med helos out of Pit Memorial and UNC Chapel Hill.

Although 855.2125 is licensed to Pitt, that is the only frequency assigned to the license. Pitt Memorial does have a five-frequency trunked license for use at the hospital in Greenville.

855.2125 is licensed to the State of N.C. for data use at several locations in Brunswick and Columbus Counties. You might have caught a signal off one of those sites ... the Delco site has been good coverage of the southeastern area of the state.

The following State of North Carolina licenses are for trunked voice communications:

WPUU518 - Pender County
WPUS985 and WPUS986 - Onslow County

I haven't seen any State of N.C. trunked site licenses for Jones or Bertie Counties.

>> Also, whats the deal on the VHF and UHF systems in Brunswick County?

At the end of August, Brunswick County received approval from the FCC for modification to two licenses - WPXM613 and WPYG263. It appears that the county may have added both frequencies and sites to the licenses. Possibly they are trying to address problems with site coverage and / or interference issues.


Jeff Multer

 

[fmon]

Thanks wx4cbh and Jeff,

Apparently I need to monitor NCSPD on HF and VHF freqs while traveling down US 13/17 to SC.

 

[jeffmulter]

I would check the three State of N.C. trunked sites I mentioned for activity.

RadioReference indicates that NCHP does have a TG on the Wilmington / New Hanover system, and it would not surprise me if NCHP also has a TG on the Onslow County / Jacksonville and Lenoir County / Kinston systems.

Otherwise, I would monitor the low band channels, along with the fixed link frequencies ... both midband and UHF.


Jeff Multer

 

[CCHLLM]

Never ever assume anything in this shared system as it changes from week to week as it's built out. You may notice that in some areas, the state's license may show a modulation type that is different from the identical freq on the local license holder's ticket. That indicates a change coming or in place as the systems are built out and brought on line, and you can sorta tell from the dates on the licenses what has changed since the older license was issued. As with other things, sometimes it doesn't mean a durn thing as the plans changed again and the original modulation type is retained......... for the time being, that is.

 

[yardbird]

State of NC 800 Mhz System

As far as I know Brunswick County still dispatches fire across 154.415 mhz and Ems & Rescue across 155.745 Mhz.

New Hanover is still dispatching County Fire on 154.295 Mhz and is crossed patched with the New Hanover 800 Mhz system. Ems is the same way except it is dispatched across 155.280 Mhz.

Also according to the information I get from the NC Office of Ems is that Pender county is going to be if not already switching to 155.700 Mhz for all public safety dispatch with the exception of Law Enforcement.

David

 

[yardbird]

State of NC 800 Mhz System

As far as I know Brunswick County still dispatches fire across 154.415 mhz and Ems & Rescue across 155.745 Mhz.

New Hanover is still dispatching County Fire on 154.295 Mhz and is crossed patched with the New Hanover 800 Mhz system. Ems is the same way except it is dispatched across 155.280 Mhz.

Also according to the information I get from the NC Office of Ems is that Pender county is going to be if not already switching to 155.700 Mhz for all public safety dispatch with the exception of Law Enforcement.

David

 

[jeffmulter]

I logged Pender Co EMS using 155.700 / 103.5 R for dispatching during a band enhancement in July.

Although I didn't hear any fire dispatches, the RR database indicates that both fire and ems will use the channel, and that 45.44 MHz might continue as a simulcast channel.

Jeff Multer
Fort Mill, S.C.

 

[airbear21200]

I was just in Brunswick over Thanksgiving weekend... They are still using the conventional repeaters, vhf for fire/ems and uhf for police. There licensing shows to make those freqs. and some other into a ltr type trunking system...which someone mentioned was to help coverage issues. But, as of last week, i was still monitoring the conventional set up.
As for NCHP, I am totally frustrated !! I have all vhf low band and high band freq as well as the trunked systems freqs programmed and heard very little to no traffic on these. Incidently, i was on the "I74 cooridor" taking I77 out of Wythefille Va, to 52 to Winston, 40 to Burlington, 220 to Rockingham and 74/501/190 to Ocean Isle Beach. ANY TIPS HERE ???
NC GRIZ stuck in the Buckeye.

 

[jeffmulter]

>> I have all vhf low band and high band freq as well as the trunked systems freqs programmed and heard very little to no traffic on these.

Partly the result of access to laptop communications in the patrol vehicles.

>> Incidently, i was on the "I74 cooridor" taking I77 out of Wythefille Va, to 52 to Winston, 40 to Burlington, 220 to Rockingham and 74/501/190 to Ocean Isle Beach. ANY TIPS HERE ???

From Burlington, taking 64 / 40 to Wilmington might have been a faster route - but more miles.


Jeff Multer
Fort Mill, S.C.

 

[CCHLLM]

As an employee of the NCSHP Communications and Logistics Division (now known by another moniker), I can tell you that the 42 mHz freqs are quite active compared to the high band VHF freqs since the high band repeater system is being phased out as the 800 system comes on line in more and more areas. The mobile data units are indeed the reason for the decline in the voice traffic on ALL freqs.

The 800 voice system traffic currently goes according to the major 800 system in the given area. If the local system is analog, the SHP has talkgroups in that system and shares the state freqs with the local system, and may have exclusive talkgroups within the state freqs alone, such as a multi-cast of the low band dispatch traffic. Sorry, as with the low band system, there's no repeated mobile traffic.

As systems are built out, the talkgroups, frequency usages, and the type(s) of modulation will naturally change. The current analog 800 infrastructure will be changed out with new digital equipment as the system matures over the next few years. Once the 800 system is completely on line, the low band and high band VHF systems will be dropped like a red hot ball bearing, and as old as they are, they'll never survive the fall (Ha ha, that's a joke, son, a joke. Git it?).

We have just recently replaced two 30+ year old low band receivers at two tower sites within Troop D with salvaged mobile units. Parts for the originals are, as you would expect, no longer available, and because the state has decided (wisely, I might add) to not spend any but absolutely necessary monies on the low band system, we have become experts at making chicken salad, so to speak.

There will be more replacements in the near future because there are plenty more that ain't ezzactly up to par either, and as long as we can refurb mobiles and obtain used base stations, we're in there. The transmitters are hanging in there for the time being, knock on wood, and we've got some used pieces that we're refurbishing for those contingencies. God bless the old GE Mastr II, for without 'em, we wouldn't have anything to replace the OLDER equipment still in place.

 

[joebean50]

fire reports onslow co.

recieved NCHP reference to roadside fire on 155.700 mhz 12/06/13 kj4qnr richlands