Northern CHP Redding office

[mikedaly]

I have been hearing CHP Red-2 low band being rebroadcasted on 460.450. But only at night. Sometime after 4pm then other times after 5pm. Also not being every night. Anyone have a clue of whats the logic is behind this. This is great that they are doing it becasue now we can hear both Station and Car.

 

[Oakland_Tower]

Just a guess...but might have something to do with the old CA State Police that merged years ago with CHP. Perhaps their dispatcher goes home and CHP Redding picks up the dispatch function for those officers providing security at state buildings in the area. I just checked RR database and 460.45 is listed as used at a state building in Redding....so CHP officers providing secuirty there use this freq and at night CHP Redding is piped in as their night dispatcher.

 

[mikedaly]

Just a guess...but might have something to do with the old CA State Police that merged years ago with CHP. Perhaps their dispatcher goes home and CHP Redding picks up the dispatch function for those officers providing security at state buildings in the area. I just checked RR database and 460.45 is listed as used at a state building in Redding....so CHP officers providing secuirty there use this freq and at night CHP Redding is piped in as their night dispatcher.

Thanks. For the quick reply

 

[norcalscan]

I've had 460.450 in my scan load forever up here. This is recent to the last 7 days and has never occurred up here in the past that I'm aware of. The CHP Dispatch already is the control operator for this UHF channel, and is how the local DMV investigators have dispatch access. Other state agencies like Fish and Game on multi-band radios have used this for access to CHP dispatch also. At first I thought the patch was temporary for an incident or something, but it keeps coming back.

Here are my notes so far since this has started:

• So far appears to be 100% of mobile traffic out of Tehama and Shasta (not heard a Trinity River unit though)
• Mobile traffic seems to be the voter RX out at the console, units from very diverse and extreme locations are coming up with superb signal/audio quality.
• Not all Base traffic comes across UHF. I'm hearing about 3 lowband transmit sites over UHF, but there are at least 2 sites the console is picking to transmit on, that isn't coming over the UHF, but I hear the mobile's response. One of those sites I can still hear on the Low side, and the 2nd I can neither hear Low or UHF.
• 460.450 is up on Tuscan Buttes and Sugarloaf, besides local coverage in Redding which I wouldn't hear. My signal strength is putting this as Tuscan. Sugarloaf I know I don't get interior at my house.
• When it first started last week the dispatcher had both radios turned up at their console, so you could hear the delayed audio coming over her low band transmission, which really irked the officers who had no idea what was up. It was ringing good, almost full on feedback at a few points. It has since cleaned up (turned down?)
• Friday night had 3 radio operators up at one point, not sure if 3 consoles, or 2 consoles and 1 subbed in for 1 temporarily, as I only heard him, the 3rd, for about 5 minutes.
• Tuscan Buttes also has a Red3 transmitter that is tied into Red2's Tuscan transmitter. Been that way since beginning of CHPERS project. The UHF patch covers both.
• CRIS is up on Tuscan and South Fork Mtn, but no local traffic yet on either, and neither are tied into the core yet (which is through Bloomer, once Bloomer comes up, Tuscan and SouthFork will be lit too. Figured this patch might be to help create radio traffic for CRIS testing, but night time doesn't make since.

Quite the puzzle, but nobody is complaining getting some amazing CHP audio above our low band coverage.

 

[gmclam]

In addition to CHP low band channels (both base & mobile), I usually also monitor the old State Police UHF frequencies (their exact names seem to change depending on the area of the state being used). On my most recent trip back from the Pacific Northwest (mid July 2020), I noticed that CHP traffic was being "repeated" on the UHF channels. I remember this was abundant from Redding southward to oh around Glenn County.

As I recall though, I was not just hearing CHP traffic repeated. If I recall correctly, Cal Fire and perhaps other traffic was also being repeated. Since I was driving, and didn't have the time to stop and explore; I just made a mental note of it. I found this post to be very interesting. Now I am anxious to head back north and listen again.

 

[ko6jw_2]

In Santa Barbara County the CHP offices functioned as dispatchers for Fish and Game (now Wildlife). They could also talk to CalTrans on low band. Did not repeat CHP traffic however.

 

[scannerboy02]

Have you done a search of the 700 MHz band to see if they have a conventional 700 MHz channel up as well? They have one up on Pine Hill for the CHP gold channel, I have to imagine they are doing this at more that one site in the entire state.

 

[scannerboy02]

For those who want to throw these in a scan list, here are all of the State of California 700 MHz frequencies.

BASE CH #	BASE FREQ
25	769.15
26	769.15625
27	769.1625
28	769.16875
29	769.175
30	769.18125
31	769.1875
32	769.19375
33	769.2
34	769.20625
35	769.2125
36	769.21875
65	769.4
66	769.40625
67	769.4125
68	769.41875
69	769.425
70	769.43125
71	769.4375
72	769.44375
73	769.45
74	769.45625
75	769.4625
76	769.46875
105	769.65
106	769.65625
107	769.6625
108	769.66875
109	769.675
110	769.68125
111	769.6875
112	769.69375
113	769.7
114	769.70625
115	769.7125
116	769.71875
145	769.9
146	769.90625
147	769.9125
148	769.91875
149	769.925
150	769.93125
151	769.9375
152	769.94375
153	769.95
154	769.95625
155	769.9625
156	769.96875
185	770.15
186	770.15625
187	770.1625
188	770.16875
189	770.175
190	770.18125
191	770.1875
192	770.19375
193	770.2
194	770.20625
195	770.2125
196	770.21875
225	770.4
226	770.40625
227	770.4125
228	770.41875
229	770.425
230	770.43125
231	770.4375
232	770.44375
233	770.45
234	770.45625
235	770.4625
236	770.46875
265	770.65
266	770.65625
267	770.6625
268	770.66875
269	770.675
270	770.68125
271	770.6875
272	770.69375
273	770.7
274	770.70625
275	770.7125
276	770.71875
305	770.9
306	770.90625
307	770.9125
308	770.91875
309	770.925
310	770.93125
311	770.9375
312	770.94375
313	770.95
314	770.95625
315	770.9625
316	770.96875
645	773.025
646	773.03125
647	773.0375
648	773.04375
649	773.05
650	773.05625
651	773.0625
652	773.06875
653	773.075
654	773.08125
655	773.0875
656	773.09375
685	773.275
686	773.28125
687	773.2875
688	773.29375
689	773.3
690	773.30625
691	773.3125
692	773.31875
693	773.325
694	773.33125
695	773.3375
696	773.34375
725	773.525
726	773.53125
727	773.5375
728	773.54375
729	773.55
730	773.55625
731	773.5625
732	773.56875
733	773.575
734	773.58125
735	773.5875
736	773.59375
765	773.775
766	773.78125
767	773.7875
768	773.79375
769	773.8
770	773.80625
771	773.8125
772	773.81875
773	773.825
774	773.83125
775	773.8375
776	773.84375
805	774.025
806	774.03125
807	774.0375
808	774.04375
809	774.05
810	774.05625
811	774.0625
812	774.06875
813	774.075
814	774.08125
815	774.0875
816	774.09375
845	774.275
846	774.28125
847	774.2875
848	774.29375
849	774.3
850	774.30625
851	774.3125
852	774.31875
853	774.325
854	774.33125
855	774.3375
856	774.34375
885	774.525
886	774.53125
887	774.5375
888	774.54375
889	774.55
890	774.55625
891	774.5625
892	774.56875
893	774.575
894	774.58125
895	774.5875
896	774.59375
925	774.775
926	774.78125
927	774.7875
928	774.79375
929	774.8
930	774.80625
931	774.8125
932	774.81875
933	774.825
934	774.83125
935	774.8375
936	774.84375

 

[gmclam]

For those who want to throw these in a scan list, here are all of the State of California 700 MHz frequencies.

Are these in the DB? I do scan all the stuff already in the DB.

 

[scannerboy02]

Are these in the DB? I do scan all the stuff already in the DB.

I don't think they are in the database. They really aren't a database kind of thing, they are just the 700 Mhz frequencies allocated to the state. They can be used for anything.

 

[mikedaly]

I've had 460.450 in my scan load forever up here. This is recent to the last 7 days and has never occurred up here in the past that I'm aware of. The CHP Dispatch already is the control operator for this UHF channel, and is how the local DMV investigators have dispatch access. Other state agencies like Fish and Game on multi-band radios have used this for access to CHP dispatch also. At first I thought the patch was temporary for an incident or something, but it keeps coming back.

Here are my notes so far since this has started:

• So far appears to be 100% of mobile traffic out of Tehama and Shasta (not heard a Trinity River unit though)
• Mobile traffic seems to be the voter RX out at the console, units from very diverse and extreme locations are coming up with superb signal/audio quality.
• Not all Base traffic comes across UHF. I'm hearing about 3 lowband transmit sites over UHF, but there are at least 2 sites the console is picking to transmit on, that isn't coming over the UHF, but I hear the mobile's response. One of those sites I can still hear on the Low side, and the 2nd I can neither hear Low or UHF.
• 460.450 is up on Tuscan Buttes and Sugarloaf, besides local coverage in Redding which I wouldn't hear. My signal strength is putting this as Tuscan. Sugarloaf I know I don't get interior at my house.
• When it first started last week the dispatcher had both radios turned up at their console, so you could hear the delayed audio coming over her low band transmission, which really irked the officers who had no idea what was up. It was ringing good, almost full on feedback at a few points. It has since cleaned up (turned down?)
• Friday night had 3 radio operators up at one point, not sure if 3 consoles, or 2 consoles and 1 subbed in for 1 temporarily, as I only heard him, the 3rd, for about 5 minutes.
• Tuscan Buttes also has a Red3 transmitter that is tied into Red2's Tuscan transmitter. Been that way since beginning of CHPERS project. The UHF patch covers both.
• CRIS is up on Tuscan and South Fork Mtn, but no local traffic yet on either, and neither are tied into the core yet (which is through Bloomer, once Bloomer comes up, Tuscan and SouthFork will be lit too. Figured this patch might be to help create radio traffic for CRIS testing, but night time doesn't make since.

Quite the puzzle, but nobody is complaining getting some amazing CHP audio above our low band coverage.

I figured you would have some input. sometime last week i did here 90-S1 calling a 36- unit. that unit responded that he was south of Corning. My guess is that the 90-S1 was up in Weaverville. I can getthe CC for the South Fork site from my house 273@clear creek.

 

[mikedaly]

Have you done a search of the 700 MHz band to see if they have a conventional 700 MHz channel up as well? They have one up on Pine Hill for the CHP gold channel, I have to imagine they are doing this at more that one site in the entire state.

yes the stuff on 700 is more VRS and office. But that doesnt interest me as much as what i posted.

 

[mikedaly]

In addition to CHP low band channels (both base & mobile), I usually also monitor the old State Police UHF frequencies (their exact names seem to change depending on the area of the state being used). On my most recent trip back from the Pacific Northwest (mid July 2020), I noticed that CHP traffic was being "repeated" on the UHF channels. I remember this was abundant from Redding southward to oh around Glenn County.

As I recall though, I was not just hearing CHP traffic repeated. If I recall correctly, Cal Fire and perhaps other traffic was also being repeated. Since I was driving, and didn't have the time to stop and explore; I just made a mental note of it. I found this post to be very interesting. Now I am anxious to head back north and listen again.

glen county line is the south portion of the Red Bluff office area. So that would make since. Hoppfully we can figure out what is going on here

 

[scannerboy02]

yes the stuff on 700 is more VRS and office. But that doesnt interest me as much as what i posted.

That's not all that's on 700 MHz. They are using the frequencies for a lot more than most people realize.

As I said, they have a conventional P25 700 MHz retransmission of the gold broadcasting from Pine Hill. It can be heard quite well in many areas of Sacramento. I have to imagine they are doing this with more than just the gold, and likely with more than just 700 MHz.

 

[Emoney250]

As a scanner enthusiast since 1987 in Shasta County, I have had the Old State Police in my scanners "just because". The Redding CHP dispatch center covers Shasta, Tehema and Eastern Trinity County (not sure if Humboldt dispatch picks up other parts of Trinity County).
I am loving the traffic coming over the old SP channel. I go to Chico everyday for work and I can hear this traffic from down there.