SJCSO channel switch

[russianspd]

Anyone know why San Joaquin County Sheriff have switched their main dispatch channel to their tac channel on 460.225 186.2PL and happens to be their only analog channel?

 

[kma371]

Anyone know why San Joaquin County Sheriff have switched their main dispatch channel to their tac channel on 460.225 186.2PL and happens to be their only analog channel?

Not sure. Maybe testing.


Sent from my iPhone using Tapatalk

 

[russianspd]

Update with the SO. Still dispatching on TAC1 460.225 and I just heard them transmit Control 5 Records on their main dispatch channel on 460.125. Don't know what they are doing with their original 450.350 records channel, haven't heard anything on it yet.

 

[kma371]

I was just about to report same thing.

Side note, channel 3 isn't called tac 1, it's just ch 3.

 

[russianspd]

I was just going by how it was listed in the database. Used to say TAC 1 I believe but now it's just TAC. Thanks!

 

[KD6RRR]

Today I am still hearing the Sheriff's Office using their analog "channel 3", as they used to refer to it, for their main dispatch, and the former P25 "channel 1" as their "control 5" frequency. I have a request into a friend who says he is affiliated with the department to see if he can find out if this will be a permanent arrangement, or if it's just temporary while something gets fixed.

I'm wildly guessing that they must have gotten tired of the sometimes continuous issues I would hear them experiencing with low signal levels during critical communications. The times I happened to hear them having problems, it would cause unintelligible transmissions, causing the deputies to probably hold their portables up in the air, or retreat to their vehicles and instead use the mobile radio to be heard.

Anyone else hear of what the plan is currently, as far as if the present scenario is temporary during system improvements, or permanent?

KMA371, are you still with the SO? Any ideas?

 

[WayneH]

I heard it today and was confused also. I know from hearing CH 1 there were a lot of times where signal was good but the voice was still garbled. So there may be a talk-in issue that shows more prominently when used over P25. Maybe there's a voting problem...who knows. From experience I can tell all the SO channels have their own operating personalities.

When a P25 system is designed properly it should match or exceed an analog system. (And lets please not debate this in this thread in the event someone gets the idea.)

 

[KD6RRR]

Yup, I definitely agree. After moving back to the area two years ago, I started listening to the various agencies in the county with conventional P25 systems. Tracy PD, Stockton PD, recently Stockton Fire, Lodi PD & Fire, all of them work great and mostly with little to no issues at all. I'm guessing Wayne is right in there being voting problems, either not enough of them or receive problems at the existing sites. The dispatchers were always loud and clear coming off the main tower (towers?), but many times I could hear the deputies using their portables coming across with the telltale warbling sound of missed and lost data packets.

When I first heard that type of sound on my scanner, and later on a portable radio, I always assumed it was MY receiver that was having reception problems. I did not realize that a P25 repeater system would actually rebroadcast the partial/incomplete data packets so I could also hear the warble sound. I incorrectly assumed the repeater was actually decoding then rebroadcasting the data as complete as it heard it instead of just being a flat audio type system and passing anything it heard, noise and all.

 

[kma371]

Well I texted someone who should know and the response was:

"Channel 1's f- up"

Haha. I'm still trying to get more info.

 

[KD6RRR]

HAHAHAHAHAHA yup that's about what I figured! Guess I will be safe for now just reprogramming all my receivers to show channel three as dispatch and channel one as control 5. Wonder what channel two will get used for, if anything?

Thanks Wayne!

 

[kma371]

I don't think this is a permanent switch. I think they moved primary traffic off of it for safety reasons so they can work out some bugs.

 

[kma371]

Ok still no official word but...

Sounds like channel 2 broke. So records moved to 1 and dispatched moved to 3. The IT guy is out if the area and couldn't fix it right away. they only just know found out the issue, but they arent really sure if thats it or not.

I guess the plan is, channel 3 will be changed to the primary at some point. Unknown if it will stay analog as it is now, or switch back to P25.

So basically nobody knows anything

 

[russianspd]

Funny hearing the term "broke". I'm surprised it was Channel 2 when they were having all the distortion effects on 1. Thanks for the update KMA.

 

[KD6RRR]

Well. Now they are back to "normal". Channel 1 P25 is Dispatch again. Haven't been listening long enough today to tell if they are using channel 2 for Control 5 again or not.

 

[russianspd]

Back on Channel 1. However Dispatch has been asking units to re identify all evening and still are having a multitude of radio issues on Channel 1. Channel 2 is still down. Channel 3 is still being used as Control 5 and Secondary as far as I can tell.

 

[russianspd]

Main dispatch back to channel 3, doing unit test counts on 1.

 

[kma371]

Main dispatch back to channel 3, doing unit test counts on 1.

P25 or analog?

 

[russianspd]

They were on channel 1 p25 and then when there was a tone they used channel 3 analog as secondary. That was actually the reverse of what they did before which was tone on 3 and secondary on 2.

But they are back to channel 3 analog as main and POSSIBLY channel 1 p25 for secondary right now.

 

[russianspd]

Someone just asked Dispatch about the status of what channel Control 5 Records was on and Dispatch said Channel 2 was TEMPORARILY down and that it was on Channel 1. Although the wording was pretty confusing.

 

[russianspd]

Control 5 Records is now back on channel 2, 460.350 Digital, Dispatch is still on 460.225 Analog and Channel 1 460.125 Digital is not being used at the moment.