InterceptRadio.com Forums

I've been doing a lot of CC-only monitoring and I've discovered some new freqs that are not showing up in my original lists and/or the Intercept lists.

I'll be checking all of my systems but here are my EPSCA trunk freqs:

851.8875

852.6375

853.3875
853.4125 (NEW FREQ)

854.2375

866.2125
866.4625
866.9125
866.9875

867.3125
867.4875
867.8125

868.525
868.775 (CONTROL)
868.825

**UNCONFIRMED FREQS**

851.1375
866.2375
867.8875
868.2 (BACKUP CTRL - anyone confirm this?)

Site# USE FREQ
3 C-V 851.1375
3 --V 851.8875
3 --V 852.6375
3 --V 853.3875
3 --V 854.2375
3 --V 866.2125
3 --V 866.4625
3 --V 866.9125
3 --V 866.9875
3 --V 867.3125
3 --V 867.4875
3 --V 867.8125
3 --V 867.8875
3 -DV 868.2000
3 --V 868.5250
3 -DV 868.7750
3 --V 868.8250

Here's my complete list of the big 3 so far. I've copied about 3 new freqs that I didn't have listed anywhere before.

The list:

Trunk Freqs for Major Sites
1-3-2008
---------------------------

COLUMBIA TOWER

851.1875 NOT IN USE?
851.4125 NOT IN USE?
851.9375
851.9875
852.1625
852.6875
852.9125
853.4375
853.6625
854.1125
854.1875
854.3625
854.4125
866.2875
866.3125 NOT IN USE?
866.3375
866.4375
866.6875
866.7125
866.7375 NOT IN USE?
866.8875
867.2875
867.7625 NOT IN USE?
867.7875
868.175 CTRL
868.475
868.675
868.875


EPSCA

851.1375 NOT IN USE?
851.8875
852.6375
853.3875
853.4125
854.2375
866.2125
866.2375 NOT IN USE?
866.4625
866.9125
866.9875
867.3125
867.4875
867.8125
867.8875 NOT IN USE?
868.2 *BACKUP CTRL - NOT IN USE?
868.525
868.775 CTRL
868.825



Port of Seattle

852.0625
852.7625
852.8125
853.5625
854.2625 CTRL
854.3125

Who is EPSCA?

http://www.eastsidecomm.org/EPSCA.htm

Eastside Public Safety Communications Agency

Interesting; I thought about starting a thread asking just this.

FlashP--V and DV are... Voice/Data & Voice? So which ones are the control channels?


Also--I was wondering when the secondary and overflow channels are used (for EPSCA, KC/VC, and Seattle) and whether or not it's useful to program them in.

On occasion the control channel will change from its usual frequency to a secondary frequency so its always good to have both programmed in. A voice channel will usually be from a certain group of frequencies however on occasion all the frequencies will be in use so the system will use some additional "overflow" frequencies for voice traffic.

Just for kix the other day, I put the frequencies you listed as "Not in Use" into my Pro-97 in FM mode and at about 15 till and past the hour, A Morse ID'er comes up on 851.1375.

Well, I'm only saying that they're not in use by the control channel. They could be used by another system.

I've done several days of EPSCA monitoring (of control channel) and only the freqs I listed were being used. Obviously, they could be 'reserved' for emergency use only.

Do you really need EPSCA and Columbia Tower? If I remember right, I can listen to most Seattle Talk Groups on the EPSCA system?

_________________
Realistic Patrolman PRO-48, Uniden BC-800XLT, Radio Shack PRO-2018, Uniden BC-895XLT, Uniden BC-245XLT, RCA RP-6100,
Realistic PRO-2006, Uniden BR330T, Uniden BCT15X

Trunker reports three items:
C (CW id)
D or A (data/alternate = control channel)
V (voice)

A frequency can be used at different times for any of the three, if the system techs wish. Usually there are 2-4 control channels.

EPSCA seems only to use two at the moment. Of course that can change - but not too drastically, as the radios need to be programmed to know where to look when they power up.

Flash