BriW, I am curious where you're getting your information on FSP?
First of all, we know that the FSP beat map does not always follow CHP area office boundaries (the FSP Bay Area beat map can be seen
here), but it is absolutely 100% confirmed that the callsigns used on the radio DO use CHP area offices, preceded by a 6. It is not a coincidence that CHP Marin units use a "34-" prefix, and FSP Marin units use a "6-34-" prefix. FSP is dispatched by CHP Golden Gate, and I would guess they use similar callsigns for simplicity.
Second, FSP operates on 480 MHz LTR Standard trunking systems leased from private 3rd party commercial operators. This means it will be impossible to search "FSP" in the FCC database and find anything, because FSP is simply one of many customers (including taxi companies, other tow truck companies, garbage trucks, etc) that utilize these systems.
The following is a partial list of LTR systems used for FSP dispatch. Last I checked they were all operated by Crystal Communications (Crystal SMR Inc) out of San Leandro, but my knowledge of these systems is several years old so it's possible they may have moved since then.
Looking back at the original Crystal Communications list referred to in
this thread, it sounds like there were sites at the following mountain tops:
- Big Rock Ridge (Marin)
- Loma Prieta (Santa Clara)
- Mt Diablo (Contra Costa)
- Mission/Monument Peak (Alameda)
- Devil's Peak (I'm not exactly sure where this is, there's one in Placer Co and one south of Monterey)
Crystal Communications, Big Rock Ridge:
Crystal Communications (Big Rock Ridge) Trunking System, Novato, California - Scanner Frequencies
Crystal Communications, Loma Prieta:
Crystal Communications (Loma Prieta) Trunking System, Loma Prieta, California - Scanner Frequencies
Crystal Communications, Mt Diablo (South Peak):
Crystal Communications (Mt. Diablo South Pk) Trunking System, Walnut Creek, California - Scanner Frequencies
Crystal Communications, Monument/Mission Peak:
Crystal Communications (Monument/Mission Peak) Trunking System, Fremont, California - Scanner Frequencies
This FleetTalk Partners system on Mt San Bruno (SF county) also has an FSP entry, but this system dates back all the way from 2003, so I suspect FSP is not longer on it (if it even still exists at all):
FleetTalk Partners- was Champion Communications (San Bruno Mtn.) Trunking System, None, California - Scanner Frequencies
Frank, give those a listen and let us know.