ScopeSome talkgroups encrypted (6.8% per RadioReference data); others remain in the clear.
Technical DetailsP25 AES-256
Verified Talkgroup Data
Verified Mar 6, 2026 Moderate confidence
147Total Talkgroups
10Encrypted
137Unencrypted
7%Encrypted
Radio System:Nextel (Santiago), National Science and Technology Network (Sierra Peak 1), Los Angeles County Metropolitan Transportation Authority - 900Mhz, National Science and Technology Network (Santiago Peak), Nextel (WIL681 2), Shell (Carson), Mobile Relay Associates (Sunset Ridge), Mobile Relay Associates (Mount Lukens), United States Department of Defense (14C), National Science and Technology Network (Mount Lukens 1), National Science and Technology Network (Los Angeles), MS Airwaves, Mobile Relay Associates (Mount Wilson), National Science and Technology Network (Sunset Peak), National Science and Technology Network (Mount Lukens 2), Touch Tel Mobile (Los Angeles), National Science and Technology Network (Mt. Lukens, Oat, Sierra), Anderson Communications (Mount Lukens), Touch Tel Mobile (217 Mhz Santiago Peak), Touch Tel Mobile (217 MHz LA Basin), Comm Enterprises (Oat Mountain), BearCom Group (Mt. Wilson), National Science and Technology Network (Oat Mountain), Acumen Communication (Oat Mountain/Hollywood), Fisher Wireless TeamTalk, Los Angeles City (STRS - Simulcast Trunked Radio System) Project 25, Alliance Communications Group (Lukens), Mobile Relay Associates (Santiago Peak 2), TelePath Corporation (Connect Plus), Los Angeles Regional Interoperable Communications System (LA-RICS), Los Angeles Countywide Integrated Radio System (CWIRS), Caltrans (District 7/8/12), Southern California Edison, Air Communication Services Inc. (Mt. Lukens), Mobile Relay Associates Diga-Talk Network, Communications Innovations (NXDN), Apple, Ramirez Electronics (Lukens), California Radio Interoperable System (CRIS)
View 10 talkgroups
DEC
Alpha Tag
Description
Status
2132
LASD LTAC SCT
L-TAC - Santa Clarita
Encrypted
2138
LASD LTAC SDM
L-TAC - San Dimas
Encrypted
2139
LASD METRO SDM
Metro - San Dimas Supplemental Tac
Encrypted
2133
LASD METRO SCT
Metro - Santa Clarita Supplemental Tac
Encrypted
2140
LASD DB SDM
Detectives - San Dimas
Encrypted
2042
LASD SAR SND
Search and Rescue - San Dimas
Encrypted
2084
LASD DISP 5
Dispatch 5 - Santa Clarita
Encrypted
2085
LASD DISP 6
Dispatch 6 - San Dimas / Walnut
Encrypted
305
Apple SD 305 Enc
San Diego (Encrypted)
Encrypted
783
VA White
Valley White - Stockton (62) / Tracy (103) / Amador (94) / San Andreas (49)
Encrypted
Verification Status
We do have per-talkgroup data for San Gabriel Police from the RadioReference API, and used it to
set the encryption scope shown above —
but no additional human-reviewed source (a live feed check or a dated news account) has been
recorded for this record, so treat it as a data-quality correction rather than an independently
confirmed verification. Check the live RadioReference database directly for current status.
If you monitor San Gabriel Police directly or have more current information, the fastest way to fix this is
to update the RadioReference Wiki entry — our data pulls from there and from the RadioReference API on a regular refresh cycle.
Shared Radio System
San Gabriel Police isn't on a radio system of its own: Nextel (Santiago) / National Science and Technology Network (Sierra Peak 1) / Los Angeles County Metropolitan Transportation Authority - 900Mhz / National Science and Technology Network (Santiago Peak) / Nextel (WIL681 2) / Shell (Carson) / Mobile Relay Associates (Sunset Ridge) / Mobile Relay Associates (Mount Lukens) / United States Department of Defense (14C) / National Science and Technology Network (Mount Lukens 1) / National Science and Technology Network (Los Angeles) / MS Airwaves / Mobile Relay Associates (Mount Wilson) / National Science and Technology Network (Sunset Peak) / National Science and Technology Network (Mount Lukens 2) / Touch Tel Mobile (Los Angeles) / National Science and Technology Network (Mt. Lukens, Oat, Sierra) / Anderson Communications (Mount Lukens) / Touch Tel Mobile (217 Mhz Santiago Peak) / Touch Tel Mobile (217 MHz LA Basin) / Comm Enterprises (Oat Mountain) / BearCom Group (Mt. Wilson) / National Science and Technology Network (Oat Mountain) / Acumen Communication (Oat Mountain/Hollywood) / Fisher Wireless TeamTalk / Los Angeles City (STRS - Simulcast Trunked Radio System) Project 25 / Alliance Communications Group (Lukens) / Mobile Relay Associates (Santiago Peak 2) / TelePath Corporation (Connect Plus) / Los Angeles Regional Interoperable Communications System (LA-RICS) / Los Angeles Countywide Integrated Radio System (CWIRS) / Caltrans (District 7/8/12) / Southern California Edison / Air Communication Services Inc. (Mt. Lukens) / Mobile Relay Associates Diga-Talk Network / Communications Innovations (NXDN) / Apple / Ramirez Electronics (Lukens) / California Radio Interoperable System (CRIS) also carries 1 other agency in Los Angeles County, California. Whatever encryption status applies here was set once, for the whole system, not agency by agency.
Los Angeles County is a mixed picture: 22 of 46 agencies we track here are fully encrypted (48%), which means some neighboring departments are still audible on a scanner.
This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.
San Gabriel Police is listed in our records with P25 AES-256 encryption — a listing we haven't yet verified against live talkgroup data. This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.
Can I listen to San Gabriel Police on a police scanner?
Possibly. Our database lists San Gabriel Police as encrypting some of its talkgroups while leaving others open, which would leave some channels accessible. The listing is unverified — check RadioReference for specific talkgroup status.
Why do agencies like San Gabriel Police encrypt their radio?
Officer safety and operational security are the reasons agencies give. What rarely comes with that explanation is Los Angeles County-specific evidence that open communications ever caused a problem, while the loss of public oversight and the friction with still-unencrypted neighboring agencies are both immediate and real.
Can Los Angeles County reverse the encryption decision?
Yes. Encryption is a policy choice made by department leadership or elected officials, not a technical requirement, so it can be reversed the same way. Public pressure, city council advocacy, and organized local coalitions have reversed encryption decisions elsewhere.
What can I do about San Gabriel Police encryption?
Start local: show up when Los Angeles County officials discuss the budget for San Gabriel Police, and ask specifically why full encryption was chosen over a delayed feed or tactical-only approach. File a FOIA request for recordings or policy documents, and connect with others nearby who want the same information — a coordinated ask carries more weight than an individual one.