Two CCs from SCE Frazier Mountain

[bryan_herbert]

Was using the search feature to find new frequencies and came across a really strong control channel on 938.8500 MHz. I looked up the frequency in the FCC database and the only licensed user in LA County is SCE from Frazier Peak & Burnt Peak. It appears they are running two control channels simultaneously from the one site, 938.7750 MHz is also active however considerably weaker.

 

[zz0468]

...It appears they are running two control channels simultaneously from the one site, 938.7750 MHz is also active however considerably weaker.

The fact that one is considerably weaker would indicate to me that it's at a different site.

 

[bryan_herbert]

Both control channels are broadcasting the same System ID and Site Number (3626h-0007)

Their FCC license does list two locations for Site 7, Frazier Mtn and Burnt Peak. If I am hearing Burnt Peak, kudos is in order for SCE on picking such an amazing location. The signal strength of their site really makes me want to put a 900MHz ham repeater up there.

 

[zz0468]

Both control channels are broadcasting the same System ID and Site Number (3626h-0007)

Their FCC license does list two locations for Site 7, Frazier Mtn and Burnt Peak.

Ok. I'm not sure how they have their system configured, but it could be a multicast configuration where the sites have different frequency sets, but is otherwise wired as if it were a simulcast system. I've seen this done before.

If I am hearing Burnt Peak, kudos is in order for SCE on picking such an amazing location. The signal strength of their site really makes me want to put a 900MHz ham repeater up there.

They do have a site up there.

Burnt Peak is an excellent site for a ham repeater. There are several.

 

[WayneH]

Both control channels are broadcasting the same System ID and Site Number (3626h-0007)

Then one of them is not legit as you can't duplicate sites within a SmartZone network nor can you have a control channel on two different freqs of a site.

Being one is really strong it's probably an image, or the scanner isn't decoding something correctly.

 

[bryan_herbert]

Same results on multiple receivers. Two control channels, same System ID and Site Number

 

[bcorbin]

Same results on multiple receivers. Two control channels, same System ID and Site Number

I can back Bryan up on this. Using the diagnostic stream on a GRE receiver, I'm seeing three SCE (SID:3626) control channels - 938.025 is ID'ing as site 1, 938.775 and 938.850 are both IDing as site 7. All three sites are absolutely full-kersmash with signal to spare in Santa Clarita. All three sites can be easily heard (albeit with significantly reduced data decode rates) with no antenna attached to the radio 8*)

So the observation is legit - can't speak for the system configuration... 8*)