CalTrans P25 System for District 7,8,12

Post frequencies and talkgroups for Riverside County. In this area you will find some of the most up-to-date frequency/talkgroup notes and information about newly discovered systems.
cvrules90
Posts: 1393
Joined: Tue Feb 22, 2011 8:08 am

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by cvrules90 » Sun Jun 29, 2014 5:45 pm

sp1989 wrote:I can get the control channel, but nothing happens when I program the freqs in, it won't trunk.
What type/brand of scanner do you have? It's likely Phase 2, so you should consider going to the store and getting a BCD536HP.

sp1989
Posts: 1017
Joined: Thu Jun 04, 2009 4:08 pm

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by sp1989 » Sun Jun 29, 2014 10:19 pm

That's a big negative, Ghost Rider...not buying a $500 scanner just to listen to CalTrans. Do you know how much Meister Brau and Popeye's I can get for $500?

800
Posts: 22
Joined: Tue Oct 29, 2013 10:30 am

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by 800 » Mon Jun 30, 2014 6:24 am

cvrules90 wrote:
sp1989 wrote:I can get the control channel, but nothing happens when I program the freqs in, it won't trunk.
What type/brand of scanner do you have? It's likely Phase 2, so you should consider going to the store and getting a BCD536HP.
Considering CalTrans does not own Phase 2 capable subscriber radios, I suspect it is Phase 1.

Mike_G_D
Posts: 45
Joined: Mon May 02, 2011 11:58 pm

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by Mike_G_D » Mon Jun 30, 2014 5:35 pm

It programs in fine on my Phase 1 P25 capable scanner (PSR500); haven't heard any voice traffic yet but haven't listened to it much (out of my area).

Make sure you program it in as P25 Auto and not Motorola.

-Mike

brandon
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Location: Riverside County
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Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by brandon » Mon Jun 30, 2014 9:33 pm

From what I can tell from Pro96com and UniTrunker it's a Phase 2 system.

sp1989
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Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by sp1989 » Tue Jul 01, 2014 12:42 am

The control channels is displaying system info in my Pro 96 when it is locked on in Motorola mode, would it do that if it was Phase II?

cvrules90
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Joined: Tue Feb 22, 2011 8:08 am

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by cvrules90 » Tue Jul 01, 2014 7:09 pm

Mike_G_D wrote:It programs in fine on my Phase 1 P25 capable scanner (PSR500); haven't heard any voice traffic yet but haven't listened to it much (out of my area).

Make sure you program it in as P25 Auto and not Motorola.

-Mike
And for the BCD396XT, it is P-25 Standard (not Single Frequency or Motorola).

brandon
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Location: Riverside County
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Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by brandon » Tue Jul 01, 2014 8:28 pm

System no longer in Site Trunking.
Attached is updated list of talkgroups.

Mike_G_D
Posts: 45
Joined: Mon May 02, 2011 11:58 pm

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by Mike_G_D » Tue Jul 01, 2014 11:59 pm

If it's P2 then that would explain the lack of any voice traffic for me! Too bad. Oh well. I only get a decent signal with my handheld when in certain locations but it is good and steady when in those locations.

To sp1989:

Again, you do NOT use Motorola mode - it is a true P25 system. On the 96, I am not sure what mode that is (it is "P25 Auto" on the PSR500) but neither your 96 nor my 500 will track a TDMA Phase II system (except for any Phase 1 talkgroups, if any) so even though you (and I) can decode the control channel and display information about it in P25 mode (and send the data out the PC/IF port to use with PRO96COM or Unitrunker) we cannot follow the TDMA P2 voice slots.

Voice decoding could be done with the newer Uniden x36 series radios and the GRE PSR800 and future Whistler variants of the PSR800, however, and via software such as DSD and DSD+.

-Mike

sp1989
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Joined: Thu Jun 04, 2009 4:08 pm

Re: UNID System - SysID: 4A6 - 857.9875 CC

Post by sp1989 » Wed Jul 02, 2014 6:27 pm

There's no setting on the Pro 96 for P25, if it's a digital signal, the radio automatically changes to "digital" mode from FM when it detects it. It only does that on this system randomly, mostly it stays FM. If it's Phase II, I guess it's trying to work but it can't.

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