California Radio Interoperable System (CRIS)

[scannerboy02]

Just a few locations to check for signal based on recent data.


BEAR MOUNTAIN LOOKOUT
SQUAW VALLEY, CA
FRESNO County
Coordinates 36-44-44.8 N, 119-16-57.4 W
---------------------------------------------
BECKWOURTH MT
PORTOLA, CA
PLUMAS County
Coordinates 39-46-08.6 N, 120-26-11.8 W
---------------------------------------------
BLACK MOUNTAIN
MILFORD, CA
LASSEN County
Coordinates 40-07-01.6 N, 120-19-05.7 W
---------------------------------------------
BLACK MTN
TOLLHOUSE, CA
FRESNO County
Coordinates 37-00-46.8 N, 119-27-08.5 W
---------------------------------------------
BOX SPRINGS MTN
RIVERSIDE, CA
RIVERSIDE County
Coordinates 33-57-58.1 N, 117-17-21.1 W
---------------------------------------------
CACTUS CITY RADIO SITE
MECCA, CA
RIVERSIDE County
Coordinates 33-39-32.1 N, 115-59-09.9 W
---------------------------------------------
HOUGH MOUNTAIN
TAYLORVILLE, CA
PLUMAS County
Coordinates 40-02-38.6 N, 120-53-09.8 W
---------------------------------------------
KELLOGG HILL
POMONA, CA
LOS ANGELES County
Coordinates 34-03-45.0 N, 117-49-33.2 W
---------------------------------------------
LA HABRA PEAK
LA HABRA, CA
LOS ANGELES County
Coordinates 33-58-24.0 N, 117-56-35.2 W
---------------------------------------------
LAKE PERRIS
PERRIS, CA
RIVERSIDE County
Coordinates 33-51-42.0 N, 117-12-15.1 W
---------------------------------------------
LOS PINETOS PEAK
NEWHALL, CA
LOS ANGELES County
Coordinates 34-21-17.0 N, 118-27-34.3 W
---------------------------------------------
MT ZION
PINE GROVE, CA
AMADOR County
Coordinates 38-23-21.7 N, 120-39-07.7 W
---------------------------------------------
SHAFFER MTN
SUSANVILLE, CA
LASSEN County
Coordinates 40-26-47.6 N, 120-21-27.8 W
---------------------------------------------
TELEGRAPH HILL RADIO SITE
COLUMBIA, CA
TUOLUMNE County
Coordinates 38-01-51.7 N, 120-21-05.7 W
---------------------------------------------

 

[kg6nlw]

I guess a weekend off and a trip to Plumas County is in order!

Regards,

-Frank C.

 

[bcorbin]

Just a few locations to check for signal based on recent data.

---------------------------------------------
LOS PINETOS PEAK
NEWHALL, CA
LOS ANGELES County
Coordinates 34-21-17.0 N, 118-27-34.3 W
---------------------------------------------

The state has a site at Los P., but I'm pretty certain you're not going to find CRIS up there. I'd be able to decode it with the attenuator activated and the feedline shorted.

 

[scannerboy02]

The state has a site at Los P., but I'm pretty certain you're not going to find CRIS up there. I'd be able to decode it with the attenuator activated and the feedline shorted.

Not all of those locations will be CRIS sites, they are just a few places to check for active signal and to keep an ear on in the future.

 

[norcalscan]

Nabbed Site 42 over the weekend. Soda Ridge, Siskiyou County
Submitted
CC 769.20625
A 770.90625
A 773.31875
A 774.06875

 

[kj6psg]

Driving around the Ventura area and listening on a portable, it felt more consistent with Red Mountain; it was fairly strong on the 101 around Oxnard, which I wouldn't expect from La Cumbre on 700 MHz, but too weak to be a site like Laguna Peak. Eventually I'll check coverage along the 33 (as I need to go to Ojai anyways), which should be able to determine if it is indeed on Red, and if so, which tower on Red and possibly even roughly how high up on the tower. If it's not on Red, I should have enough data to identify the hilltop regardless.

I did this a while back and forgot to update. I did some surveying around downtown Ventura and I'm pretty confident this is Red Mountain; it's extremely strong in the downtown Ventura area (spotting about -70 dBm on a portable-type receiver) which is line-of-sight to Red Mountain's towers. I'll check Oak View / Ojai later on when I get equipment repaired from some more recent adventures, but there's not much new to learn about this site's location.

 

[scannerboy02]

I came across this video from the July 2021 Public Safety Radio Strategic Planning Committee meeting with a lot of great information on the CRIS. It's about a year old now but I haven't seen any mentions of it here so for those who haven't seen it you can view it here. The CRIS part starts at 00:15:00 and discussion goes on and off through the end of the video. The part I really enjoyed was hearing how each state agency plans to use the CRIS.

A few takeaways; Some we (I) already knew.
48 sites installed through Phase 3.
4 sites from Sacramento to Reading, 4 more being installed from Reading to Oregon.
5 sites in "Bay Area" region, 4 more being installed.
7 sites in "Tri-County" region.
3 sites in "I-80 east" region, more to be installed in Truckee area.
7 sites in "Central Coast" region.
1 more site being installed near Mather in Sacramento, to cover Cal OES and Sacramento Communications Center.
Entered into a "proof of concept" agreement with Mono County to install 10 VHF sites to cover the county, 6 "state" sites and 4 "county" sites, will be used by all county departments, all sites will be part of the CRIS.
Motorola Critical Connect ISSI, in talks with LA-RICS and SRRCS for linking to those systems.

 

[tsalmrsystemtech]

You know CHP will eventually join this system. This system will cover the whole state of CA.

 

[officer_415]

There’s a Site 66 online at Cal OES in Rancho Cordova, I’ll add it to the DB later.

 

[Outerdog]

Site 18 (Mt Diablo) is advertising the VHF band plan now. Maybe it has been for a little while now; first I've looked at it.

CA Radio Interop System
System ID 0x9D2​	NAC 0x9D8​	WACN 0xBEE00​	RFSS ID 1​	Site ID 18​	Type Phase 2​
Control Channel 770.44375​	Secondary Control Channels 773.06875 773.56875 774.05625​	​	​

ID	Type	Base Frequency	Tx Offset	Spacing (kHz)	Slots
0	FDMA	851.00625	-45.00000	6.25	1
1	FDMA	762.00625	30.00000	6.25	1
2	TDMA	851.01250	-45.00000	12.5	2
3	TDMA	762.00625	30.00000	12.5	2
6	FDMA	151.00000	0.00500	2.5	1
7	FDMA	157.00000	0.00500	2.5	1
8	TDMA	151.00000	0.00500	2.5	2
9	TDMA	157.00000	0.00500	2.5	2

 

[officer_415]

You know CHP will eventually join this system. This system will cover the whole state of CA.

I doubt it; the system will only cover 60% of the state's geographic footprint. It's only designed to cover the populated areas.

 

[PrivatelyJeff]

I doubt it; the system will only cover 60% of the state's geographic footprint. It's only designed to cover the populated areas.

Yep. We’re so large and spread out (outside the cities) and such varied terrain that full coverage is impossible.

 

[Outerdog]

impossible

infeasible.

 

[es93546]

infeasible.

Living in the Sierra Nevada for over 40 years, having extensively hiked and driven in rural California, I would say, given the law, funding and the terrain, I lean toward what PrivatelyJeff said. If HF is used it might be possible, in the right sun and atmospheric conditions to cover it all. Some of the Sierra Nevada does not have satellite coverage save 10-20 minutes in a day. This in slot canyons and at the base of some gnarly cliff faces.

 

[gmclam]

You know CHP will eventually join this system. This system will cover the whole state of CA.

They may ALSO use this system, as they do others; but I highly doubt it will be their only or main system. Long live VHF low band!

 

[tsalmrsystemtech]

Site 18 (Mt Diablo) is advertising the VHF band plan now. Maybe it has been for a little while now; first I've looked at it.

CA Radio Interop System
System ID 0x9D2​	NAC 0x9D8​	WACN 0xBEE00​	RFSS ID 1​	Site ID 18​	Type Phase 2​
Control Channel 770.44375​	Secondary Control Channels 773.06875 773.56875 774.05625​	​	​

ID	Type	Base Frequency	Tx Offset	Spacing (kHz)	Slots
0	FDMA	851.00625	-45.00000	6.25	1
1	FDMA	762.00625	30.00000	6.25	1
2	TDMA	851.01250	-45.00000	12.5	2
3	TDMA	762.00625	30.00000	12.5	2
6	FDMA	151.00000	0.00500	2.5	1
7	FDMA	157.00000	0.00500	2.5	1
8	TDMA	151.00000	0.00500	2.5	2
9	TDMA	157.00000	0.00500	2.5	2

This is an awesome find for the channel spacing if you want to eventually program your commercial grade radio down the road. Covers 700/800/VHF for FDMA and TDMA offset and spacing.

 

[tsalmrsystemtech]

They may ALSO use this system, as they do others; but I highly doubt it will be their only or main system. Long live VHF low band!

Makes sense. Use their low-band for primary for ever how long. Then use the CRIS system on their mobile and portable 700/800 mhz radios for inter-ops. They have been carrying for years now the Motorola APX 6000 radio with 700/800mhz back to their vehicle extender. By the time they completely go live CHP will probably retire the 6000 model radios and get the quad band APX 8000 which would include VHF-High band for the VHF trunked sites or the new APX NEXT radio with touch screen. That new radio is multi-band so all the bands I believe. Those radios use Wi-Fi and Cellular and LMR all together and could run license plates back to all the states databases.

But heard those new radios are going to cost 15K each.

 

[monitor142]

If I'm not mistaken, CHP and many other state agencies have been fielding APX8000's for a while. In the quantities they are buying them, I'd imagine it's (a lot) less than price book...MSRP.

They may have 6000's in some areas but in SoCal, EFJ portables were retired and the 8000's showed up.

-M142

Makes sense. Use their low-band for primary for ever how long. Then use the CRIS system on their mobile and portable 700/800 mhz radios for inter-ops. They have been carrying for years now the Motorola APX 6000 radio with 700/800mhz back to their vehicle extender. By the time they completely go live CHP will probably retire the 6000 model radios and get the quad band APX 8000 which would include VHF-High band for the VHF trunked sites or the new APX NEXT radio with touch screen. That new radio is multi-band so all the bands I believe. Those radios use Wi-Fi and Cellular and LMR all together and could run license plates back to all the states databases.

But heard those new radios are going to cost 15K each.

 

[mkewman]

Hearing technician testing on talkgroup 143 this morning in Sacramento. Discussed something about talkgroups. Do we want radio tech testing talkgroups to be submitted?

 

[officer_415]

Hearing technician testing on talkgroup 143 this morning in Sacramento. Discussed something about talkgroups. Do we want radio tech testing talkgroups to be submitted?

Sure, since there aren’t really any active TGs yet.