AngerManagement
GTFD #6
What's confusing me is ... In the database 773.78125 is listed as a control channel for Morris County. Can a control channel be used multiple times on one system?
New Jersey Interoperability Communication System (NJICS)
- Thread starter etr37
- Start date
Yes. Frequencies can and often are reused, especially in large wide area systems like this. There are actually quite a few frequencies reused within the NJICS system at multiple sites. At one point, Walpack and Martinsville had the exact same channel plan. The key is to ensure enough geographic separate between sites that share common frequencies, and in the unlikely event that there should be some overlap, that's where the unique NAC for each site comes into play.
AngerManagement
GTFD #6
Friday I was receiving traffic from the Berlin site (4) from Erial. Tonight I'm in Marlton bouncing between Bordentown site (3) and STR II Trailer New Providence Union County site (15)? That doesn't seem right.
Have you read the last page or two of posts? There's a new Site 40 on the air that likely has replaced Site 4. Details in the previous posts.
Btw for those curious...the current list of reused frequencies in the system.
Frequency | Site | Site | Site |
|---|---|---|---|
| 769.19375 | 1 | 5 | |
| 769.44375 | 19 | 22 | |
| 769.68125 | 27 | 28 | |
| 769.69375 | 4 | 25 | 26 |
| 769.70625 | 13 | 31 | |
| 769.71875 | 19 | 22 | |
| 769.91875 | 4 | 27 | |
| 769.93125 | 40 | 58 | |
| 769.94375 | 25 | 26 | 38 |
| 769.95625 | 19 | 31 | |
| 769.96875 | 1 | 5 | |
| 770.16875 | 4 | 16 | 58 |
| 770.18125 | 22 | 35 | |
| 770.19375 | 2 | 61 | |
| 770.20625 | 5 | 26 | |
| 770.21875 | 25 | 27 | 28 |
| 770.41875 | 16 | 38 | |
| 770.43125 | 20 | 22 | |
| 770.44375 | 1 | 5 | |
| 770.66875 | 1 | 40 | |
| 770.68125 | 8 | 36 | |
| 770.70625 | 25 | 26 | |
| 770.71875 | 27 | 28 | |
| 770.93125 | 13 | 20 | |
| 770.94375 | 3 | 61 | |
| 770.95625 | 15 | 38 | |
| 773.06875 | 8 | 13 | 34 |
| 773.09375 | 3 | 19 | |
| 773.30625 | 9 | 28 | 31 |
| 773.31875 | 20 | 34 | |
| 773.33125 | 15 | 58 | |
| 773.34375 | 1 | 40 | |
| 773.53125 | 3 | 58 | |
| 773.54375 | 38 | 61 | |
| 773.55625 | 13 | 14 | 35 |
| 773.56875 | 4 | 8 | |
| 773.78125 | 40 | 58 | |
| 773.80625 | 31 | 61 | |
| 773.81875 | 3 | 19 | |
| 773.84375 | 14 | 28 | 35 |
| 774.04375 | 5 | 19 | 28 |
| 774.05625 | 32 | 34 | 36 |
| 774.06875 | 3 | 35 | |
| 774.28125 | 13 | 16 | |
| 774.29375 | 14 | 61 | |
| 774.30625 | 32 | 36 | |
| 774.31875 | 1 | 4 | |
| 774.33125 | 6 | 20 | 34 |
| 774.53125 | 15 | 58 | |
| 774.55625 | 3 | 32 | |
| 774.56875 | 5 | 8 | |
| 853.1375 | 31 | 60 |
AngerManagement
GTFD #6
I'm just here to learn how the system works and understand it better. Thanks for your help.
- Joined
- Dec 22, 2005
- Messages
- 1,996
My .02. Looks like a great idea. I would not choose not to reuse any common ICS channels as a CC in Atlantic, Cape May, Ocean counties unless the site was very low.
During band openings I decode all the ICS south sites well, including the State of Delaware.
As the 700 MHZ band becomes more crowded, tropo will create more conflict despite best efforts.
Database is updated with site 40.
Yesterday I was picking up South Patrols and North Patrols along with Central Patrols (3-Comm, 4-Comm, 5-Comm) while on Site 3, Bordentown, tonight I am not picking up the South.
That's how this system works, as has been touched on many, many times in this thread and others. No subscribers affiliated with a particular talkgroup at a site/cell = no traffic for that talkgroup being carried. This traffic can come and go on a whim, and you shouldn't expect to be hearing full time traffic for NJSP Troop A (south) talkgroups on a cell that is only meant to cover the central part of the state.
As I posted it, I thought about radio affiliation.
So, back to the Site 4/Site 40 thing...is anyone still picking up Site 4 at any of these subsites? Or is it all Site 40 now? Hoping we have some members reading this thread who are local to any of these locations and can verify what site # is coming over the air. Thanks.
I can confirm Berlin, Camden and Woodstown are showing site 40.
Looks like NJDOC is finally making a push with new radios. I have seen a lot of new ones showing up this week.
Site 40 for Camden and Berlin. Will be checking Winslow and Clayton in the days to come. Also just confirming is anyone still picking up 773.78125 CC around the Moorestown area?
Why did they update the frequency’s is it a new tower site ?
I'm still on the old frequencies + 773.7812 and still receiving C3, C4 & C5 tonight via Berlin.
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