California Radio Interoperable System (CRIS)

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I do know E320/DCD20??* asked the GOLD Dispatcher yesterday afternoon if they could have the channel for a minute and did a radio check with 46-D4...So *THEY MIGHT have a unit or two with CRIS radios for system testing outside the radio techs. This was after I shut down my DSD+ for the day...

*I first heard this unit around 14:31:57 on 6/8/21 if anyone has recordings from that time...He and dispatch were a rough copy at the time for me because of my location, hence the ?? next to the unit ID above.

Regards,

-Frank C.
Are you using DSD+ FL? If you are it should have it set to auto record the audio. If not you can set it in output/pre call recording
 

scannerboy02

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I do know E320/DCD20??* asked the GOLD Dispatcher yesterday afternoon if they could have the channel for a minute and did a radio check with 46-D4...So *THEY MIGHT have a unit or two with CRIS radios for system testing outside the radio techs. This was after I shut down my DSD+ for the day...

*I first heard this unit around 14:31:57 on 6/8/21 if anyone has recordings from that time...He and dispatch were a rough copy at the time for me because of my location, hence the ?? next to the unit ID above.

Regards,

-Frank C.
I know they had some officers who would talk on the conventional P25 "Gold" channel that was setup on Pine Hill, I heard it with my own ears. One was an officer going 10-10 at the office and another was an officer at a traffic crash. I have also heard Air-21 use it at least once. Being that they had some officers that were talking directly on the conventional channel it would seem to make sense that they have some officers talking directly on the TRS now.
 

franks_ham

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I know they had some officers who would talk on the conventional P25 "Gold" channel that was setup on Pine Hill, I heard it with my own ears. One was an officer going 10-10 at the office and another was an officer at a traffic crash. I have also heard Air-21 use it at least once. Being that they had some officers that were talking directly on the conventional channel it would seem to make sense that they have some officers talking directly on the TRS now.
That 773 P25 channel was similar to the other "Office Base" Channels but used off Pine Hill because it covered the area so well. It was a bit of a simulcast/able to talk back via 700 to low band situation.

Regards,

-Frank C.
 

scannerboy02

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That 773 P25 channel was similar to the other "Office Base" Channels but used off Pine Hill because it covered the area so well. It was a bit of a simulcast/able to talk back via 700 to low band situation.

Regards,

-Frank C.
Yes, it was the 7CHP IF (Inspection Facility), 7CHP AIR (Aircraft), 7CHP GGB (Golden Gate Bridge) frequency. They obviously repurposed it for the Gold off Pine Hill, I'm guessing as a prof of concept that they could create a link between 700 MHz P25 and low band analog. Kind of the beginning stages of the CRIS.
 

scannerboy02

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Something I just noticed. If you number the counties as below Santa Cruz County would be 45 and being that the suspected 'FEL TAC' talk group is 4501 and perhaps a 4502 also being related it's possible we may be seeing some kind of numbering scheme. It's also possible it's just a fluke.

I can't really explain why the CHP Gold Valley is being heard on 861 other than the standard for statewide systems is for the state to use talk groups 100 to 999 (some also use talk groups above the county numbering) so it's possible they will assign counties 2 through 9 to some other numbering.

County NumberCounty Name
1STATE
2ALAMEDA
3ALPINE
4AMADOR
5BUTTE
6CALAVERAS
7COLUSA
8CONTRA COSTA
9DEL NORTE
10EL DORADO
11FRESNO
12GLENN
13HUMBOLDT
14IMPERIAL
15INYO
16KERN
17KINGS
18LAKE
19LASSEN
20LOS ANGELES
21MADERA
22MARIN
23MARIPOSA
24MENDOCINO
25MERCED
26MODOC
27MONO
28MONTEREY
29NAPA
30NEVADA
31ORANGE
32PLACER
33PLUMAS
34RIVERSIDE
35SACRAMENTO
36SAN BENITO
37SAN BERNARDINO
38SAN DIEGO
39SAN FRANCISCO
40SAN JOAQUIN
41SAN LUIS OBISPO
42SAN MATEO
43SANTA BARBARA
44SANTA CLARA
45SANTA CRUZ
46SHASTA
47SIERRA
48SISKIYOU
49SOLANO
50SONOMA
51STANISLAUS
52SUTTER
53TEHAMA
54TRINITY
55TULARE
56TUOLUMNE
57VENTURA
58YOLO
59YUBA
 

franks_ham

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Yes, it was the 7CHP IF (Inspection Facility), 7CHP AIR (Aircraft), 7CHP GGB (Golden Gate Bridge) frequency. They obviously repurposed it for the Gold off Pine Hill, I'm guessing as a prof of concept that they could create a link between 700 MHz P25 and low band analog. Kind of the beginning stages of the CRIS.
Golden Gate has always been on 770.43125 for Bridge Patrol and Turquiose Simulcast has always been on 773.78125...I think the Gold Simulcast 773.33125 has always been it's own thing like the Brown Office Base in Chico area.

Something I just noticed. If you number the counties as below Santa Cruz County would be 45 and being that the suspected 'FEL TAC' talk group is 4501 and perhaps a 4502 also being related it's possible we may be seeing some kind of numbering scheme. It's also possible it's just a fluke.

I can't really explain why the CHP Gold Valley is being heard on 861 other than the standard for statewide systems is for the state to use talk groups 100 to 999 (some also use talk groups above the county numbering) so it's possible they will assign counties 2 through 9 to some other numbering.
That's one long stretch IMHO...If anything I would think each "area" would get their own block of TG ID's...

This thread added as sticky on California discussion forum page.
Thanks @LAflyer!!


Regards,

-Frank C.
 

scannerboy02

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Golden Gate has always been on 770.43125 for Bridge Patrol and Turquiose Simulcast has always been on 773.78125...I think the Gold Simulcast 773.33125 has always been it's own thing like the Brown Office Base in Chico area.
Yes, I'm aware the "7CHP" system never really became anything, that's why they repurposed the frequencies for CRIS.

That's one long stretch IMHO...If anything I would think each "area" would get their own block of TG ID's...
That's exactly what I'm saying, perhaps something like this, just a thought and something to maybe keep a lookout for.

County NumberCounty NameTalk (Dec)Groups (Dec)
1STATE100999
2ALAMEDA60006099
3ALPINE61006199
4AMADOR62006299
5BUTTE63006399
6CALAVERAS64006499
7COLUSA65006599
8CONTRA COSTA66006699
9DEL NORTE67006799
10EL DORADO10001099
11FRESNO11001199
12GLENN12001299
13HUMBOLDT13001399
14IMPERIAL14001499
15INYO15001599
16KERN16001699
17KINGS17001799
18LAKE18001899
19LASSEN19001999
20LOS ANGELES20002099
21MADERA21002199
22MARIN22002299
23MARIPOSA23002399
24MENDOCINO24002499
25MERCED25002599
26MODOC26002699
27MONO27002799
28MONTEREY28002899
29NAPA29002999
30NEVADA30003099
31ORANGE31003199
32PLACER32003299
33PLUMAS33003399
34RIVERSIDE34003499
35SACRAMENTO35003599
36SAN BENITO36003699
37SAN BERNARDINO37003799
38SAN DIEGO38003899
39SAN FRANCISCO39003999
40SAN JOAQUIN40004099
41SAN LUIS OBISPO41004199
42SAN MATEO42004299
43SANTA BARBARA43004399
44SANTA CLARA44004499
45SANTA CRUZ45004599
46SHASTA46004699
47SIERRA47004799
48SISKIYOU48004899
49SOLANO49004999
50SONOMA50005099
51STANISLAUS51005199
52SUTTER52005299
53TEHAMA53005399
54TRINITY54005499
55TULARE55005599
56TUOLUMNE56005699
57VENTURA57005799
58YOLO58005899
59YUBA59005999
 

mmckenna

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In the E911 database system, Santa Cruz County is County #44. Santa Clara County is #43….
Looking at your spreadsheet, they are using #1 as State which throws the numbering off by one.
But, yeah, I see where you are going.
 

es93546

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Yes, I'm aware the "7CHP" system never really became anything, that's why they repurposed the frequencies for CRIS.

By the "7CHP" system do you mean the base or office extenders? I thought this was so an officer didn't have to leave his vehicle extender on, but just switched their extender over to the base extender while they are in the office. As I've been reading, I understand the handhelds are 700/800 MHz only. They have channels for their office low band pair, for their division Blue, with primary and secondary for each, their office base station, any local trunked system frequencies and conventional 700/800 frequencies as well. The nearly trunkful of radios in their vehicles do all the rest. If they, for example, want to talk on a local sheriff's office VHF-High repeater or to CLEMARS 154.9200 then they switch the extender to a channel labeled with what they need. The vehicle's radio system performs all the switching of the radios to enable them to RX/TX on those frequencies. I thought that progress putting in the office or base extenders was a little slow, but I'm not aware these are not going to be used or installed anymore.

Many have mentioned hearing the base extenders when they are close to a CHP office. I remember this starting several years ago. Why would they be dropping the base station extenders? Some people interpreted the licensing of these frequencies as being part of a new statewide CHP 700 MHz primary system, something people are still trying to do on this thread as you've probably noticed. As far as I know the CHP never envisioned a 700 MHz system for anything but extenders. CHP would be stupid to leave low band. Just going to VHF-High would likely require twice the sites. In their own study in San Diego County done 10-15 years ago it was indicated in that county's relatively moderate topography, going to 450+ Mhz would require 4 times the existing sites.

If you are referring to a 700 MHz system when you say "7CHP" as far as I know it never became what some people thought it would be, that is a statewide system. However, their use of 700 MHz in the handhelds is here to stay for a very long time. Then again, if "7CHP" refers to something entirely different I would love to hear about it.
 
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mmckenna

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As far as I know the CHP never envisioned a 700 MHz system for anything but extenders. CHP would be stupid to leave low band.
Many years ago there was talk of building a 700MHz trunked system. Not sure how wide spread it was going to be, but we were approached by CHP regarding a high site we have above the SF Bay Area.
Obviously it never materialized, but at one point, it was being considered.

And I've never heard of CHP having any plans to leave low band. They just invested a ton of money on new mobile radios.
 

franks_ham

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By the "7CHP" system do you mean the base or office extenders? I thought this was so an officer didn't have to leave his vehicle extender on, but just switched their extender over to the base extender while they are in the office. As I've been reading, I understand the handhelds are 700/800 MHz only. They have channels for their office low band pair, for their division Blue, with primary and secondary for each, their office base station, any local trunked system frequencies and conventional 700/800 frequencies as well. The nearly trunkful of radios in their vehicles do all the rest. If they, for example, want to talk on a local sheriff's office VHF-High repeater or to CLEMARS 154.9200 then they switch the extender to a channel labeled with what they need. The vehicle's radio system performs all the switching of the radios to enable them to RX/TX on those frequencies. I thought that progress putting in the office or base extenders was a little slow, but I'm not aware these are not going to be used or installed anymore.
7CHP is the nickname for the 700Mhz P25 Conventional frequencies for CHP...Similar to 7CALL/7LAW...

Regards,

-Frank C.
 

mcjones2013

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Then again, if "7CHP" refers to something entirely different I would love to hear about it.
This is the "7CHP" system they're referring to, with the LMR channels actually being called "7CHP××"
 
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es93546

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This is the "7CHP" system they're referring to, with the LMR channels actually being called "7CHP××"
I'm still confused, are you saying that all the CHP mobile and base extender 700 MHz frequencies have labels of "7CHPxx" then "7CHPxx+1" and so on? As far as I know all of those were always proposed and are in use for the mobile extenders. As I understand it the base extenders are not all built out yet, but progress is being made. mmckenna passed along one interesting tidbit about the CHP thinking of a 700 MHz trunking system in his neck of the woods. I'm still confused here, I'm sorry this is off topic, but when scannerboy02 stated "I'm aware the "7CHP" system never really became anything," is not correct as you have indicated that all the existing and proposed extender, base and mobile, are the "7CHP" system. Maybe scannerboy02 was referring to a system like mmckenna is talking about.

Sorry to have so many posts off topic, but it can be cleared up here, I think.

So far, I haven't noted any new licenses for CA State on 700 MHz in Inyo or Mono Counties. I'm wondering if the state has written off the mountainous rural terrain for this 700 MHz system. I've said many times that rural counties have interoperability on VHF-High already, except with CHP, Caltrans and State Parks. CHP isn't a problem as they can connect to anyone. State Parks has VHF-High radios in their park ranger vehicles in addition to their primary 800 MHz radio. That leaves Caltrans out all by themselves, not being able to talk with anyone. Station supervisors have VHF-Low radios in their trucks. I suppose CHP can work on the Caltrans system with their huge radio setups, but I've never heard them do so. We have a lot of interagency efforts here when closing U.S. 395 for high winds and low visibility during major dumpages (of snow). Quite often 395 is closed to the north of Mammoth and sometimes south from Mammoth. I can hear all direct traffic from those road closure setups. Caltrans sends people out to manage the closures, with CHP officers out and about when a "Code Adam Henry" has to be dealt with. That code is never used on the radio, but mostly in face to face talks with each other. Sometimes both agencies set up chain checkpoints and those really need direct interagency car to car communications during setups following agreement by everyone as to where they will be located. However they just do the old "my dispatcher to your dispatcher" relaying of traffic. I think this is what CRIS is for. It would enable the county, the towns, the USFS, BLM, CDFW and State Parks to all communicate with each other using their own frequencies. If CRIS is that simple it would be a great asset even in a rural county.
 

mcjones2013

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So far, I haven't noted any new licenses for CA State on 700 MHz in Inyo or Mono Counties.
First, the State of California has an SL license (SL - Public Safety 700 MHZ Band-State License). This gives the state a pool of 700 MHz frequencies for their exclusive use anywhere in the state, without needing to license individual sites. You will not see any individually-licensed sites for "CALIFORNIA, STATE OF" under 700 MHz because they're already licensed state-wide. I have attached the 700 MHz pool assigned to the state as filed in the license WPTZ774, publicly. This is what CRIS 700, CDCR 700, CHP 700 LMR, CHP 700 VRS, Caltrans 700, State Parks 700, Fish & Game 700 VRS, ABC 700 VRS are all licensed under, which is why you don't see any 700 licenses popping up for the state in your or any areas.

Second, there's documents related to a CHP 700 MHz LMR system. Included in the attachments is a map of the CHP 700 MHz LMR system, in addition to the VRS system and what area offices have what VRS channels, attached below. These were filed in their FCC license publicly.

CHPLMR.PNGCHPLMRTables.PNGStatePool1.PNGStatePool2.PNGStatePool3.PNGStatePool4.PNGStatePool5.PNGStatePool6.PNG

The above documents are taken from the attachments sections of the below FCC filings:
ULS Application - 0006324733 - California, State of
ULS Application - 0008686288 - California, State of
 
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