Every Dispatch center have some channel 2 receivers on the mountain tops for each color (not as many as channel 1). They are set to mute when dispatch is talking on the "C" channel.
Some CHP Questions
- Thread starter kandrey89
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Every Dispatch center have some channel 2 receivers on the mountain tops for each color (not as many as channel 1). They are set to mute when dispatch is talking on the "C" channel.
I worked at a large agency Comm center 14 yrs that muted completely all direct transmissions as part of the audio that dispatchers received.
I can't even begin to count the number of times a unit radio for emergency help and it wasn't heard til the deputy figured out the error or ended up hitting the emergency trigger, which in the case of my agency took the deputy of my console and shifted him/her to another dispatcher on a separate freq. Delay again.
Needless to say I don't like the mute.
I can't even begin to count the number of times a unit radio for emergency help and it wasn't heard til the deputy figured out the error or ended up hitting the emergency trigger, which in the case of my agency took the deputy of my console and shifted him/her to another dispatcher on a separate freq. Delay again.
Needless to say I don't like the mute.
Any idea why suddenly today Aqua and Khaki mobile units can be heard on both channels?
It used to be that mobile could only talk on their designated channel, while dispatch would broadcast on both.
I'm not complaining actually, today was really good, I could hear Khaki mobile units on Aqua channel even though I was technically in Khaki region, although Khaki sucks in certain areas near 580/680, but with the cross linking off input frequencies, everything is much easier to hear.
I hope they keep it this way.
It used to be that mobile could only talk on their designated channel, while dispatch would broadcast on both.
I'm not complaining actually, today was really good, I could hear Khaki mobile units on Aqua channel even though I was technically in Khaki region, although Khaki sucks in certain areas near 580/680, but with the cross linking off input frequencies, everything is much easier to hear.
I hope they keep it this way.
They probably are going full simulcast on both frequencies finally.
Regards,
-Frank C.
Regards,
-Frank C.
Yep, and it'll now mean that I can hear all the traffic.
The major problem I was having was when I would be in the hills of 580 west of San Ramon, Khaki doesn't cover that at all. In fact, Aqua is better than Khaki west of Santa Rita most of the time.
Now I can be on Aqua and still hear Dublin units broadcast.
I don't remember for sure, but is Channel 2 traffic unchanged? I think so, from my last night's driving.
There was a hour long clear tone following a 10851 north of North Livermore from 580 and it was because 3 occupants involved in a 459 in Lodi didn't know where they were driving into and ended up in a dead end in the hills in the middle of nowhere (Marciel Rd, north of Highland Rd, north of North Livermore exit from 580), they then bailed and CHP spent over an hour with dogs from Danville and Dublin and maybe Livermore and a CHP helicopter H32 looking for 2 outstanding suspects who disappeared into total darkness in the middle of nowhere, 1 suspect was caught fairly fast, maybe gave up. I bet the other suspects froze their balls off last night...
The major problem I was having was when I would be in the hills of 580 west of San Ramon, Khaki doesn't cover that at all. In fact, Aqua is better than Khaki west of Santa Rita most of the time.
Now I can be on Aqua and still hear Dublin units broadcast.
I don't remember for sure, but is Channel 2 traffic unchanged? I think so, from my last night's driving.
There was a hour long clear tone following a 10851 north of North Livermore from 580 and it was because 3 occupants involved in a 459 in Lodi didn't know where they were driving into and ended up in a dead end in the hills in the middle of nowhere (Marciel Rd, north of Highland Rd, north of North Livermore exit from 580), they then bailed and CHP spent over an hour with dogs from Danville and Dublin and maybe Livermore and a CHP helicopter H32 looking for 2 outstanding suspects who disappeared into total darkness in the middle of nowhere, 1 suspect was caught fairly fast, maybe gave up. I bet the other suspects froze their balls off last night...
Damn it, simulcast if that's what it was, was working for 2 days, then it stopped, I heard it again once a few days later, but it's switched back again.
Any ideas why they're switching simulcast on and off? Do you think it depends on dispatchers/unit shifts that do not want to hear Khaki/Aqua units on their own channels?
Any ideas why they're switching simulcast on and off? Do you think it depends on dispatchers/unit shifts that do not want to hear Khaki/Aqua units on their own channels?
That simulcasting is definitely due to the same dispatcher working two channels. It's probably not a permanent situation. Altadena and West Valley CHP used to simulcast several times per week for about two years; then that stopped. West L.A. and South L.A. had a similar situation too where, usually late at night, one dispatcher would work both channels. The mobile frequency was repeated on the opposing channel as in your situation. Your dispatch center may be temporarily short staffed or one of the consoles was shut down for repairs or technical reasons.
You don't understand. Aqua and Khaki channels are always staffed by the same dispatcher for the last 2 years. It's only been a couple of days in the last 10 days that I have heard mobile units on opposing channels, as if they turned on the ability of Khaki mobile units to boardcast on Aqua channels and vice versa. Dispatcher continues to broadcast on both channels simultaneously as it has been.
The input at diff freq for the aqua and khaki channels seemed to have been allowed to repeat between channels.
I actually prefer this, because Khaki channel is hard to hear sometimes in the 580/680 area and Aqua is much better, so I can hear more information and much more clearly if both channels rebroadcast all mobile units' traffic. I guess 25/143 units might not like the additional traffic from 118 units on their aqua channel because they have to listen to it and determine if it's relevant to them or not but I would think it helps them not to step on each other if they hear 118 in the middle of a transmission, because there's only one dispatcher anyway.
This could be happening just because some/many/most of the dispatchers aren't familiar how to fully patch the frequencies together and just stop when the first step is completed. It is clear there are at least two steps, one patching transmit, then patching input.
I think the only time the field would really care about the repeater being on patched is if there was hot/11-99 kind of traffic on the other freq and want to here it, as that is my perspective from an agency that I was at that did a lot of patching.
I think the only time the field would really care about the repeater being on patched is if there was hot/11-99 kind of traffic on the other freq and want to here it, as that is my perspective from an agency that I was at that did a lot of patching.
It's actually beneficial to have the two inputs patched, the reason being the Khaki units, specifically 118-51 patrols from Airway to Eden Canyon on 580, but from 680 to Eden Canyon the RX/TX fades fast on Khaki channel, so units often switch to Aqua, which is a problem for other 118 units who might be interested in 118 unit traffic on the Aqua, granted that's why CHP dispatchers repeat all transmission over the air for confirmation and for other units, but still, sometimes the delay from orig unit transmitting and dispatcher repeating is too long in certain circumstances.
There's a 20-50% chance that on any given day the input channels for Khaki and Aqua are patched and rebroadcast on both frequencies.
It's turned on now, but was not used the last 2 days.
In the past 2 weeks, I probably heard it around 4 times +3/-1.
It's turned on now, but was not used the last 2 days.
In the past 2 weeks, I probably heard it around 4 times +3/-1.
Recently started monitoring CHP and one term I have heard is at the start of a shift units will call in and mention to be shown as "working invars".
This could be invars, in VARS, INVARS, or even "in Bars" in which case maybe they start the shift with an Irish Coffee.
Does anyone know what this refers to?
This could be invars, in VARS, INVARS, or even "in Bars" in which case maybe they start the shift with an Irish Coffee.
Does anyone know what this refers to?
They are referring to the camera system in the patrol.
Update: look like they finally decided to turn it on all the time.
Aside from a technical glitch that separated the channels, as announced by the dispatcher, and a split during the heavy rains, it seems to be on all the time. I assume the split due to heavy rains was so that units could more easily use their CH2 for communications while dealing with road closures and etc.
Aside from a technical glitch that separated the channels, as announced by the dispatcher, and a split during the heavy rains, it seems to be on all the time. I assume the split due to heavy rains was so that units could more easily use their CH2 for communications while dealing with road closures and etc.
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