California Radio Interoperable System (CRIS)

[FrensicPic]

sorry northern guy here what is CWIRS? and what you see and hear

Los Angeles Countywide Integrated Radio System (CWIRS) Trunking System, Various, California

Los Angeles Countywide Integrated Radio System (CWIRS) Trunking System Profile

www.radioreference.com

 

[bcorbin]

sorry northern guy here what is CWIRS? and what you see and hear

CWIRS is an LA County (county-wide) trunked system.

Radio checks on CRIS TG 1301. On the CWIRS side, it looked like they were borrowing a P&R tac…

 

[KG7PBS]

CWIRS is an LA County (county-wide) trunked system.

Radio checks on CRIS TG 1301. On the CWIRS side, it looked like they were borrowing a P&R tac…

ok thanks i was thinking it was still called LARIC Still

 

[LAflyer]

ok thanks i was thinking it was still called LARIC Still

LA-RICS is a separate system and is being built out for first responders primarily.

CWIRS is a much older system largely for the non-emergency county support departments.

 

[FrensicPic]

Activity continues today. Some users are accessing CRIS by way of CWIRS.

Logged a few transmissions this afternoon (Tuesday). TG 1301 mostly Mt Lukens and a few from Oat Mtn.

 

[marcotor]

Heard the CWRS references today, users seemed to be mainly in the Santa Clarita Valley from locations given. And several asked if they were heard on "the Harris radio".

 

[officer_415]

I received info from a reliable source today that Site 28 is Hauser Peak, not Frazier Mountain. Is there any objection to me changing it?

 

[mkewman]

It's interesting that you weren't able to pick up any sites from the Antelope Aquatic Center, one of the first locations I "played" with this system was in the parking lot of the Kohl's at Antelope and Don Julio. Pine Hill came in rather well from that location on my Unication and SDS100. I also drove around the Rio Linda area testing the range of a few sites and got fairly good results in that area.

I thought it was weird too. It might've been in the shadow of the school or something since I was down at the lower pool?

 

[tsalmrsystemtech]

Looks like CHP is on CRIS now and some talkgroups are Encrypted.

 

[vince48]

[QUOTE="tsalmrsystemtech, post: 3712661, member: 1380233"
Looks like CHP is on CRIS now and some talkgroups are Encrypted.
[/QUOTE]
Sir,
would you expand on your message as to "WHERE" your location is and "What" you are hearing?

 

[tsalmrsystemtech]

859	35b	D	CHP BLUE 2	CHP Blue 2 - Base	Law Dispatch
860	35c	TE	CHP BLUE 2	CHP Blue 2 - Mobile	Law Dispatch
861	35d	D	CHP GOLD 3	CHP Gold 3 - Base	Law Dispatch
862	35e	TE	CHP GOLD 3	CHP Gold 3 - Mobile	Law Dispatch
863	35f	D	CHP BLACK 3	CHP Black 3 - Base	Law Dispatch
864	360	TE	CHP BLACK 3	CHP Black 3 - Mobile	Law Dispatch
865	361	D	CHP GREEN 3	CHP Green 3 - Base	Law Dispatch
866	362	TE	CHP GREEN 3	CHP Green 3 - Mobile	Law Dispatch
867	363	D	CHP WHITE 3	CHP White 3 - Base	Law Dispatch
868	364	TE	CHP WHITE 3	CHP White 3 - Mobile	Law Dispatch
869	365	D	CHP BROWN 3	CHP Brown 3 - Base	Law Dispatch
870	366	TE	CHP BROWN 3	CHP Brown 3 - Mobile	Law Dispatch

Rev: 2.0.6620

 

[vince48]

Whay down south, Border CHP patrol. Thanks. Maybe Central Vally will be next to go live?

 

[CopperWhopper67]

I noticed these updates too, and some key questions come to mind:

• Why would CHP run clear FDMA on the base TGs but encrypted TDMA for Mobile TGs?
• How does the information supplier know the identity of encrypted TGs
• Why would the CHP employ the base/mobile structure on a trunking network?

 

[mcjones2013]

Whay down south, Border CHP patrol. Thanks. Maybe Central Vally will be next to go live?

The above is for CHP Valley Division in the Sacramento region.

 

[vince48]

The above is for CHP Valley Division in the Sacramento region.

yes, my bad

 

[ScannerDude244]

I noticed these updates too, and some key questions come to mind:

• Why would CHP run clear FDMA on the base TGs but encrypted TDMA for Mobile TGs?
• How does the information supplier know the identity of encrypted TGs
• Why would the CHP employ the base/mobile structure on a trunking network?

Hmmm are the mobiles coming out clear on the base? Or you just hear the dispatcher?

 

[KG7PBS]

OK let’s dive into this. From what it appears the dispatch channel which is the base channel will be FDMA clear. I suspect the dispatch channels remain active and in the clear for outside agencies to monitor not everyone will have an APX.
In conclusion the mobile channel which is TDMA and encrypted with AES-256 this would allow CHP to be in compliance with the DOJ mandate about confidential Personal information.
I personally think CHP is going to keep the original set up so officers won’t have a hard time adjusting to the new system by totally Redesigning it. K.I.S.S.

 

[AM909]

859	35b	D	CHP BLUE 2	CHP Blue 2 - Base	Law Dispatch
...

Looks like they've just patched these from all the low-band channels for the Valley Division, which makes sense as being where Com Div HQ is located, right? BLU2 is the division tac. BLK3, GRN3, and GLD3 are all the Sacto Center dispatch channels. WHT3 is Stockton Center. BRN3 is Chico Center. The only missing one is Chico Center's GRY2; any bets on it being 871 and 872?

 

[ScannerDude244]

Are they even on the air yet?

 

[scannerboy02]

From what it appears the dispatch channel which is the base channel will be FDMA clear. I suspect the dispatch channels remain active and in the clear for outside agencies to monitor not everyone will have an APX.

From my understanding the entire system is (was) supposed to be fully TDMA voice.

In conclusion the mobile channel which is TDMA and encrypted with AES-256 this would allow CHP to be in compliance with the DOJ mandate about confidential Personal information.

Just my personal thoughts, they will have one "primary" 'channel' in the clear and a second "tac" 'channel' encrypted to pass PII.

I personally think CHP is going to keep the original set up so officers won’t have a hard time adjusting to the new system by totally Redesigning it. K.I.S.S.

From what I have been told, the Kenwood radios are already setup with the base/mobile frequencies as a single 'channel' (RX on base frequency/TX on mobile frequency), they also have different alpha tags with a separate 'channel' for each area office, even if more than one area office is on the same frequency.