PG&E Wide Area MPT-1327 System - Post your findings here!

Status
Not open for further replies.

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
site 53a9 is my strongest, so how do i set up trunkview, what is my base freq and do i use 6.25 for the step?
 

WayneH

Forums Veteran
Super Moderator
Joined
Dec 16, 2000
Messages
7,522
Location
Your master site
site 53a9 is my strongest, so how do i set up trunkview, what is my base freq and do i use 6.25 for the step?
You don't need to set Trunkview up as it's not as easy as UniTrunker. Just use it to grab the voice channel ID's. Or run UniTrunker. UniTrunker is easier to setup the multiple ranges on the band plan so the LCN's are converted to frequencies correctly. Use the ranges that I posted earlier in the thread.
 

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
Please confirm these so that i may provide the info easily and correct.
Im going to monitor Site 53A9 On Unitrunker it gives me
On info tab= Site 0 Adhoc
channels tab= site 0 lcn 168 freq 454.09375 label 53A9 control i mark X confirm i mark X bandwidth 12.5
on band plan tab i have=
000-161 451.000000 453.012500 12.5kHz
162-213 454.018750 454.568750 12.5kHz
214-364 460.650000 462.525000 12.5kHz
365-508 463.200000 464.987500 12.5kHz
 
Last edited:

Comint

Member
Premium Subscriber
Joined
May 21, 2003
Messages
630
Location
Queensland, Australia
000-161 451.000000 453.012500 12.5kHz

162-213 454.018750 454.568750 12.5kHz

214-364 460.650000 462.525000 12.5kHz
365-508 463.200000 464.987500 12.5kHz

According to my calculations, 454.568750 is Ch 206, and Ch 213 is 454.656250

Anyway, you might care to try the attached PG&E Profile on TrunkView.
You just have to rename the extension to tvp, and place it in the Profile sub-folder of TrunkView.
The use of Profiles was mentioned earlier in this thread.

--
Comint
 

Attachments

  • PG&E.txt
    7.5 KB · Views: 135

gvranchosbill

Member
Joined
Oct 17, 2008
Messages
561
Location
Douglas County,NV (4,859 Ft)
I was searching the Lake Tahoe area for these new UHF PG&E freqs
strange that i didnt find the 460 mhz freqs in my FCC/DB search, but the 450 mhz freqs did.
Ive been listening on and off to the Scout Pk site but nothing heard yet (15 miles from site?)
The Vaca and Reba sites below have the same freqs listed in new RR DB, but i dont know
anything about this system but im reading what you guys have come up with so far and i thought
i would post these even though you may be far ahead me.
And yes that 454 mhz stuff will be difficult, so i will be including that portion in my freq search on my Uniden.
To confirm will this system also have analog voice?

Right now (01:00AM 01/14/2013) im hearing what sounds like an LTR burst on 452.0000, will this system have bursts like LTR? if not then im hearing a LTR site off in the distance. The bursts are every 10 seconds.

Trunked License
WQNY910-PACIFIC GAS & ELECTRIC COMPANY
SCOUT PEAK-MEYERS,CA

452.0000..FB2..11K2F3E,11K2F2D

452.8000..FB2..11K2F3E,11K2F2D

457.0000..MO...11K2F3E,11K2F2D
457.0000..FX1..11K2F3E,11K2F2D

457.8000..MO...11K2F3E,11K2F2D
457.8000..FX1...11K2F3E,11K2F2D
--------------------------------------------------------------------------
Trunked License
WQNM216-PACIFIC GAS & ELECTRIC COMPANY
MOUNT VACA-VACAVILLE,CA

451.3125..FB8...11K2F3E,11K2F2D
451.3125..MO8..11K2F3E,11K2F2D
451.3125..FX1...11K2F3E,11K2F2D

451.4500..FB2...11K2F3E,11K2F2D

451.5625..FB8...11K2F3E,11K2F2D
451.5625..MO8..11K2F3E,11K2F2D
451.5625..FX1...11K2F3E,11K2F2D

452.4875..FB8...11K2F3E,11K2F2D
452.4875..MO8..11K2F3E,11K2F2D
452.4875..FX1...11K2F3E,11K2F2D

452.6875..FB8...11K2F3E,11K2F2D
452.6875..MO8..11K2F3E,11K2F2D
452.6875..FX1...11K2F3E,11K2F2D

452.9875..FB8...11K2F3E,11K2F2D
452.9875..MO8..11K2F3E,11K2F2D
452.9875..FX1...11K2F3E,11K2F2D

456.3125..MO8..11K2F3E,11K2F2D

456.4500..MO...11K2F3E,11K2F2D
456.4500..FX1...11K2F3E,11K2F2D

456.5625..MO8..11K2F3E,11K2F2D
457.4875..MO8..11K2F3E,11K2F2D
457.6875..MO8..11K2F3E,11K2F2D
457.9875..MO8..11K2F3E,11K2F2D
------------------------------------------------------------------------------
Trunked License
WQMJ358-PACIFIC GAS AND ELECTRIC COMPANY
MOUNT REBA-BEAR VALLEY,CA

451.1125..FB8...11K2F3E,11K2F2D
451.1125..MO8..11K2F3E,11K2F2D

451.2625..FB8...11K2F3E,11K2F2D
451.2625..MO8..11K2F3E,11K2F2D

452.7375..FB8...11K2F3E,11K2F3E
452.7375..MO8..11K2F3E,11K2F2D

456.1125..MO8..11K2F3E,11K2F2D
456.2625..MO8..11K2F3E,11K2F2D
457.7375..MO8..11K2F3E,11K2F2D
 
Last edited:

inigo88

California DB Admin
Database Admin
Joined
Oct 31, 2004
Messages
1,993
Location
San Diego, CA
Hey gvranchosbill, thanks for your interest in helping out on this system. If you go back to page 1 and the first post of this thread, you'll see I provided a link to a sound sample of an MPT-1327 control channel. MPT-1327 uses analog voice, and isn't supported by any scanner - but you can track the systems if you have a 2nd computer controllable scanner and use the Unitrunker or TrunkView programs. Those idle bursts you are hearing must be part of an unrelated LTR system.

The MPT-1327 control channel sounds very unique (and almost all of them use a 196.6 PL tone) so it should be very easy to spot if you come across one. If you'd like, try bandscanning between 450 MHz-455 MHz and also 460 MHz-465 MHz. If you happen to come across one of the control channels, you could try to DF it and post the results here. I think that would be the most helpful, since they are currently operating on an FCC waiver to use those 454 MHz "CP" licenses.
 

gvranchosbill

Member
Joined
Oct 17, 2008
Messages
561
Location
Douglas County,NV (4,859 Ft)
Well that CC Data Sample is unique and i havent yet heard that anywhere between 450 mhz & 470 mhz.
The Mt Reba Site is at a extremely high elevation and i hear or did hear PG&E Helicopters on
451.1500..WNWB702..167.9..Mt Reba mostly in the morning hours was when the signal was decent.
Their comms were about the reservoirs/dams along the western sierra foothills and up further this way, so i would bet that Mt reba does sound good in the SJ Valley.
Alpine S.O. has a VHF repeater on reba and its good one day and not the next.
UHF is funny up here, sometimes i can hear Martinez PD and LTR from SF Bay Area and i live east of Lake Tahoe.
Right now the temps have been in the 0 range and snow everywhere doing weird things with radio signals.
Reno Casinos with stand alone repeaters 55 miles away over mtns etc have been booming in here but over the mtn to the west has been degraded.
So until something changes i will continue to search around.
Scout Pk should be easy, but nothing yet heard.
NV Energy has the power Contract at tahoe & truckee areas but PG&E buts right up against them over here and VHF i have heard in the past but not lately so i will monitor and see what happens.
By the way there was a lot of Helicopter traffic on 158.1300/CSQ/Helicopter/Air Ground this summer and it sounded like PG&E or other Line crew erecting poles or towers somewhere near here and could had been radio tower or pole const, i dont know because i could not hear the ground crews that well.
 
Last edited:

fwuffy

Member
Joined
May 25, 2009
Messages
6
Some observations from the south bay (N. San Jose, Santa Clara County). Channel numbers in [brackets].

Control channel | Adjacent sites

5089: 454.0950[168] | 5099[205] 50B1[170] 50C1[172] 50F9[197]
50D9: 454.1075[169] | 5091[171] 50C1[172] 50D1[196] 50E1[195] 50F9[197]
50B1: 454.1200[170] | 50C1[172] 50D9[169] 50A9[703] 50D1[196] 50F9[197]
50C1: 454.1450[172] | 5089[168] 50B1[170] 50D9[169] 50F9[197]
50F9: 454.4575[197] | 5089[168] 5099[205] 50B1[170] 50C1[172] 50D9[169]
53F9: 454.5200[202] | 5099[205] 50A1[204] 50C1[172] 50E1[195] 50F9[197]
50A1: 454.5450[204] | 5089[168] 50F9[197] 5189[436] 5199[197] 53F9[202]

Voice activity on 454.1575[173] and 454.4200[194]

CW IDs:
454.0950: WPVE246
454.1075: WPVE246
454.1200: ??? Too weak to ID
454.1450: WPVE248
454.1575: WPVE248
454.4200: WPVE256
454.4575: WPVE257
454.5200: WPVE260
454.5450: WPVE261
 

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
monitored site 53A9, logged 4 voice channels used, 174,180,189 and 201, and a ton of users, started on site 54B9, got this on trunkview tonite
Code:
18:14:59 *******   TrunkView :: MPT1327 Protocol Decoder   ------    Monday 2013-01-14  **********
          ID: 54B9 |                  PG&E                         | Cch Frequency: 454.48125 MHz
         *****************************************************************************************
18:19:13 - AHYC | Short data invitation message  | (001)  Org: 1774  Tar: Short data message ident  Slots: 2  Desc: 4
18:19:14 - ACKQ | Acknowledge, call queued       | (001)  Org: 1774  Tar: 8136
18:27:49 - AHYC | Short data invitation message  | (001)  Org: 1751  Tar: Short data message ident  Slots: 2  Desc: 4
18:27:49 - ACKQ | Acknowledge, call queued       | (001)  Org: 1751  Tar: 8136
19:09:51 - GTC  | Go To Channel - Voice          | (000)  Org: 2741  Tar: 6501 
                |   Ch: 199  Freq: 454.48125 MHz |
19:09:51 - GTC  | Go To Channel - Voice          | (000)  Org: 2741  Tar: 6501 
                |   Ch: 199  Freq: 454.48125 MHz |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
19:10:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:05:36 - AHYC | Short data invitation message  | (000)  Org: 3079  Tar: Short data message ident  Slots: 2  Desc: 4
20:05:37 - ACKQ | Acknowledge, call queued       | (000)  Org: 3079  Tar: 8136
20:06:37 - GTC  | Go To Channel - Voice          | (000)  Org: 2770  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
20:06:38 - GTC  | Go To Channel - Voice          | (000)  Org: 2770  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:06:43 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:10:34 - AHYC | Short data invitation message  | (000)  Org: 3079  Tar: Short data message ident  Slots: 2  Desc: 4
20:10:35 - ACKQ | Acknowledge, call queued       | (000)  Org: 3079  Tar: 8136
20:10:53 - AHYC | Short data invitation message  | (000)  Org: 3079  Tar: Short data message ident  Slots: 2  Desc: 4
20:10:54 - ACKQ | Acknowledge, call queued       | (000)  Org: 3079  Tar: 8136
20:15:49 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:15:49 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:16:15 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:16 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:16:26 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:16:26 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:18:05 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:18:06 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:29:08 - AHYC | Short data invitation message  | (001)  Org: 2497  Tar: Short data message ident  Slots: 2  Desc: 4
20:29:09 - ACKQ | Acknowledge, call queued       | (001)  Org: 2497  Tar: 8136
20:30:54 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:30:54 - GTC  | Go To Channel - Voice          | (001)  Org: 1671  Tar: 6741 
                |   Ch: 199  Freq: 454.48125 MHz |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:31:48 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:41:35 - GTC  | Go To Channel - Voice          | (000)  Org: 2859  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
20:41:35 - GTC  | Go To Channel - Voice          | (000)  Org: 2859  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
20:42:25 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
20:42:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:03:25 - ACKI | Intermediate ack, more follows | (001)  Org: 1755  Tar: 6743
21:03:26 - GTC  | Go To Channel - Voice          | (001)  Org: 1755  Tar: 6743 
                |   Ch: 199  Freq: 454.48125 MHz |
21:03:26 - GTC  | Go To Channel - Voice          | (001)  Org: 1755  Tar: 6743 
                |   Ch: 199  Freq: 454.48125 MHz |
21:04:26 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:04:27 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:09:24 - GTC  | Go To Channel - Voice          | (000)  Org: 2679  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
21:09:24 - GTC  | Go To Channel - Voice          | (000)  Org: 2679  Tar: 6511 
                |   Ch: 199  Freq: 454.48125 MHz |
21:10:21 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:21 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:21 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:21 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:21 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:22 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:22 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:10:22 - CLEAR| Call clear-down                | Ch: 199  Freq: 454.48125 MHz
                |   Return to Control Ch:  94    |
21:28:49 - AHYC | Short data invitation message  | (001)  Org: 5442  Tar: Short data message ident  Slots: 2  Desc: 4
21:28:49 - ACKQ | Acknowledge, call queued       | (001)  Org: 5442  Tar: 8136
21:37:35 - AHYC | Short data invitation message  | (001)  Org: TSC ident  Tar: 1755  Slots: 1  Desc: 0
what does call clear down mean? Return to control channel 94, does this mean this tower release control to site 94?
 
Last edited by a moderator:

Comint

Member
Premium Subscriber
Joined
May 21, 2003
Messages
630
Location
Queensland, Australia
21:09:24 - GTC | Go To Channel - Voice | (000) Org: 2679 Tar: 6511
| Ch: 199 Freq: 454.48125 MHz |

21:10:22 - CLEAR| Call clear-down | Ch: 199 Freq: 454.48125 MHz
| Return to Control Ch: 94 |
21:28:49 - AHYC | Short data invitation message | (001) Org: 5442 Tar: Short data message ident Slots: 2 Desc: 4
21:28:49 - ACKQ | Acknowledge, call queued | (001) Org: 5442 Tar: 8136
21:37:35 - AHYC | Short data invitation message | (001) Org: TSC ident Tar: 1755 Slots: 1 Desc: 0
what does call clear down mean?
The "Call clear-down" message indicates the Voice Call is finished, and to return the radio units to monitoring the Control Channel.


Return to control channel 94, does this mean this tower release control to site 94?
Channel 94 is the Control Channel of that Site.(452.1750 MHz ?)

If you have set up TrunkView with a single PC controllable scanner, then on a "Go To Channel - Voice" message, TrunkView will direct the scanner to change to the frequency specified in that message (ie., 454.48125 MHz in this case). The "call clear-down" message in broadcast over the Voice Channel, and upon receipt of that message, TrunkView will direct the scanner to return to the Control Channel frequency.

If TrunkView is set up correctly, on changing to the Voice Channel, the PCs speakers will be un-muted, so the conversation can be heard through the PCs speakers. On completion of the Voice Call, the speakers will again be muted.

If you use two scanners, then TrunkView never receives the "Call clear-down" message, and will leave the second scanner on the Voice Call frequency, until such time as it receives another "Go To Channel - Voice" message.

Hope this answers you questions.

--
Comint
 
Last edited:

inigo88

California DB Admin
Database Admin
Joined
Oct 31, 2004
Messages
1,993
Location
San Diego, CA
Some observations from the south bay (N. San Jose, Santa Clara County). Channel numbers in [brackets].

Control channel | Adjacent sites

5089: 454.0950[168] | 5099[205] 50B1[170] 50C1[172] 50F9[197]
50D9: 454.1075[169] | 5091[171] 50C1[172] 50D1[196] 50E1[195] 50F9[197]
50B1: 454.1200[170] | 50C1[172] 50D9[169] 50A9[703] 50D1[196] 50F9[197]
50C1: 454.1450[172] | 5089[168] 50B1[170] 50D9[169] 50F9[197]
50F9: 454.4575[197] | 5089[168] 5099[205] 50B1[170] 50C1[172] 50D9[169]
53F9: 454.5200[202] | 5099[205] 50A1[204] 50C1[172] 50E1[195] 50F9[197]
50A1: 454.5450[204] | 5089[168] 50F9[197] 5189[436] 5199[197] 53F9[202]

Voice activity on 454.1575[173] and 454.4200[194]

CW IDs:
454.0950: WPVE246
454.1075: WPVE246
454.1200: ??? Too weak to ID
454.1450: WPVE248
454.1575: WPVE248
454.4200: WPVE256
454.4575: WPVE257
454.5200: WPVE260
454.5450: WPVE261

Hi Fwuffy,

That's some great info on the licenses, but unfortunately the scanner you're using is displaying 12.5 KHz frequency steps. These frequencies actually use 6.25 KHz steps in the 454 MHz range (ex: 454.48125 MHz). Do you have a scanner that supports that narrower resolution by any chance?
 

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
hey comint, that was coming in as a control channel from the audio being recieved, but after monitoring it all day with unitrunker and trunkview, i never recieved any voice channels into either logs, any ideas? it stated its id @ the top of the trunkview file.
 
Last edited:

fwuffy

Member
Joined
May 25, 2009
Messages
6
Oops, let's try that again with frequencies snapped to 6250Hz spacing.

Control Channels
5089[168]: 454.093750 WPVE246 | 5099[205] 50B1[170] 50C1[172] 50F9[197]
50D9[169]: 454.106250 WPVE246 | 5091[171] 50C1[172] 50D1[196] 50E1[195] 50F9[197]
50C1[172]: 454.143750 WPVE248 | 5089[168] 50B1[170] 50D9[169] 50F9[197]
50F9[197]: 454.456250 WPVE257 | 5089[168] 5099[205] 50B1[170] 50C1[172] 50D9[169]
53F9[202]: 454.518750 WPVE260 | 5099[205] 50A1[204] 50C1[172] 50E1[195] 50F9[197]
50A1[204]: 454.543750 WPVE261 | 5089[168] 50F9[197] 5189[436] 5199[197] 53F9[202] <-- Dupe channel [197] as reported by trunkview

Voice Channels
454.018750[162] WPVE245
454.156250[173]
454.418750[194]
454.493750[200] WPVE259
 

Comint

Member
Premium Subscriber
Joined
May 21, 2003
Messages
630
Location
Queensland, Australia
18:14:59 ******* TrunkView :: MPT1327 Protocol Decoder ------ Monday 2013-01-14 **********
ID: 54B9 | ................PG&E........................| Cch Frequency: 454.48125 MHz
*****************************************************************************************
19:09:51 - GTC | Go To Channel - Voice | (000) Org: 2741 Tar: 6501
| Ch: 199 Freq: 454.48125 MHz |
19:09:51 - GTC | Go To Channel - Voice | (000) Org: 2741 Tar: 6501
| Ch: 199 Freq: 454.48125 MHz |

19:10:26 - CLEAR| Call clear-down | Ch: 199 Freq: 454.48125 MHz
| Return to Control Ch: 94 |
19:10:26 - CLEAR| Call clear-down | Ch: 199 Freq: 454.48125 MHz
| Return to Control Ch: 94 |
OK, a bit confusing. You have 454.48125 MHz shown as the CC, as well as for the GoTo Voice channel, and while I am aware of Motorola's VOC (Voice On Control), and EDAC's version, SCAT, I am not aware of any such feature available for MPT1327.

So, what frequency were you monitoring when you logged Site 54B9 activity. Likewise, what frequency were you monitoring when you logged Site 5A39 activity.

In the above log, Ch: 199 is the frequency the scanner is sent to for you to hear the conversation. The Clear-Down message is also sent over the Voice channel which is why the frequency is also shown against the Clear-Down message.

Can you make a copy of your sites.xml file, and rename it sites.txt, and post it here.


. . but after monitoring it all day with unitrunker and trunkview, i never recieved any voice channels into either logs, any ideas?
They are still rolling out the system, so there is probably not many users on it yet.

--
Comint
 

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
454.09375 is site 53A9, im am in the process of logging a site a day on trunkview and unitrunker, now that i have a bandplan, 454.48125 is what i was monitoring for site 54B9, i do the most complete parameters i can per software, so in the 454. range i found 451.99753 as base channel in trunkview makes the freqs logged match the correct channel assingment. ive been at this for only couple weeks, still fairly new at this, but i have yet to have the call clear down appear on any other site. site 54B9 was ran for a period of about 18 hours. had very little traffic, but did log 15 groups and 143 for one channel. Im running a GRE 600 scanner, so there is no control between trunkview and the scanner, it is parked on the control channel only.
 
Last edited:

SCPD

QRT
Joined
Feb 24, 2001
Messages
0
Location
Virginia
i figured out how to make it a txt file, but its to large to post, if you pm me your email, ill send it to you
 

Comint

Member
Premium Subscriber
Joined
May 21, 2003
Messages
630
Location
Queensland, Australia
Im running a GRE 600 scanner, so there is no control between trunkview and the scanner, it is parked on the control channel only.
Then I wouldn't be too concerned about Clear-down messages, or lack of Goto Voice messages, until such time as the network has settled down.

--
Comint
 

WayneH

Forums Veteran
Super Moderator
Joined
Dec 16, 2000
Messages
7,522
Location
Your master site
i figured out how to make it a txt file, but its to large to post, if you pm me your email, ill send it to you
Download a program like 7Zip. This will allow you to ZIP and make it way smaller. Use the ZIP format and not 7z as the board only supports ZIP.

I'm confused also. I agree with you that you're hearing Ch199 on 54B9 but why it's shown as a voice channel and a clear-to-return to Ch94 is really weird, like you had interference from two different sites. There is a site on "Sunset Hill" with a license of WQNY907 for 452.1750. Can you tune that one in?

The raw data logs you sent me have 54B9 in them so I'll look them over.
 
Status
Not open for further replies.
Top