State and Region Frequencies
The following frequencies can be used to communicate between the Santa Clara County EOC and other Bay Area OAs.
County | Use [1] | Repeater | Frequency | TX Tone | Location | Notes |
---|---|---|---|---|---|---|
Alameda | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
Alameda | Calling | W6RGG | 147.240+ | 107.2 | San Leandro | AUXCOM |
Alameda | Calling | W6RGG | 444.200+ | 107.2 | San Leandro | AUXCOM |
Contra Costa | Calling | WA6HAM | 145.490- | 107.2 | Orinda | |
Contra Costa | Calling | WA6HAM | 445.625+ | 79.7 | Orinda | |
Marin | TBD | |||||
Monterey | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
Napa | Calling | 145.820+ | 151.4 | |||
Napa | Calling | 145.820+ | 100 | |||
San Benito | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
San Benito | Calling | 147.315+ | 94.8 | Multi-site | ||
San Francisco | TBD | |||||
San Mateo (Bay-side) | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
San Mateo (Bay-side) | Calling | KC6ULT | 146.865- | 114.8 | Skyline Blvd, San Mateo | San Mateo EOC RACES |
San Mateo (Coast-side) | TBD | |||||
Santa Clara | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
Santa Clara | Primary | K6SNY | 443.275+ | 107.2 | Crystal Peak | SCC Resource Net South |
Santa Clara | Calling | W6GGF | 442.500+ | 100.0 | Crystal Peak | SCCo Command Net |
Santa Clara | Calling | W6TI | 147.360+ | 110.9 | Black Mountain | SCCo Message Net |
Santa Cruz | Primary | WB6ECE | 441.300+ | 100.0 | Multi-site | SCV Section Net |
Solano | Calling | 441.150+ | 77.0 | ACS | ||
Sonoma | Calling | 146.730 | 88.5 | EOC Tactical | ||
Sonoma | Calling | 224.820- | 103.5 | Command 1 | ||
Sonoma | Calling | 223.760- | 88.5 | Command 2 |
- Note [1]:
-
Primary/Secondary: Used for inter-county communications.
Not for in-county use while inter-county nets are active.
- Calling: A frequency/repeater used primarily for another in-county purpose, but can be used to reach the county if the county is not currently listening on an inter-county frequency. Make contact on the calling frequency, then move to an inter-county frequency.
- Note [2]:
- Not verified.
Santa Clara County EOC
To contact the Santa Clara County EOC when ARES/RACES in the county has been activated:
- If the section-wide net is active
- The Santa Clara County EOC radio operators will monitor the section-wide net on WB6ECE.
- If the section-wide net is not active
-
Other EOCs can reach the SCCo EOC on the SCCo Command Net
Primary = W6GGF (UHF) (Crystal Peak): 442.500+ PL 100
Alternate = K6SNY (Crystal Peak): 443.275+ PL 107.2
Santa Clara Valley Section
The ARRL Santa Clara Valley Section includes the following Operational Areas: Monterey County, San Benito County, Santa Clara County, Santa Cruz County, and San Mateo County. During emergencies and/or disasters, the Santa Clara County EOC can use these systems to contact other OAs in the Santa Clara Valley Section.
- Primary: WB6ECE
-
The
WB6ECE repeater system
is a network of UHF repeaters designed to cover the Santa Clara Valley Section.
It is a simulcast system, where users operate on a single frequency, regardless of location.
The system selects the best received signal from all sites and then transmits out from all sites at once.
WB6ECE System: 441.300+ PL 100 (do not use tone squelch) - Alternate: WR6ABD
-
The WR6ABD repeater on Loma Prieta has been used in the past for NTS traffic.
WR6ABD (Loma Prieta) 146.640- PL 162.2
California Emergency Services Net (HF)
The California Auxiliary Communications Service (ACS) operates the California Emergency Services Net (CESN) for statewide HF communications. During emergencies and/or disasters, the Santa Clara County EOC can use this net to contact other OAs throughout the State.
Time | Primary | Secondary | Alternate | Verified With |
---|---|---|---|---|
Daytime | 7.192 MHz LSB | 7.230 MHz LSB | Weekly CESN Nets | |
Nighttime | 3.992 MHz LSB | 3.960 MHz LSB | 1.987 MHz LSB |
The Santa Clara County EOC does monitor SHARES HF when activated but does not monitor other HF frequencies. Contact Santa Clara County on other communication paths to arrange a contact. The county EOC has 80-10m capability.
California Emergency Services Radio System (CESRS)
The California Office of Emergency Services (Cal OES) operates the California Emergency Services Radio System (CESRS) for statewide VHF communications. The acronym CESRS is typically pronounced “Caesars.” The system operates under FCC Part 90 (not amateur radio) and consists of a series of repeaters, some of which are linked via microwave. Different PL tones are used to access different repeaters. During emergencies and/or disasters, the Santa Clara County EOC can use this system to contact other OAs and resources throughout the State.
Destination | Radio Preset | Tone | Repeater Location | Verified With |
---|---|---|---|---|
CA State Ops Ctr (SOC) and OAs to the Northeast | [Frequency][3] | 6 | Mt. Diablo | SOC |
OAs to the South and for microwave network access | [Frequency][1] | 1 | Loma Prieta | |
OAs to the North | [Frequency][2] | 3 | Mt. Tamalpais |
- To make a call:
- Select the correct preset, press PTT, wait 1 second, then say: “[destination], this is Santa Clara County on CESRS tone [#].”
- To answer a call:
- Listen to the tone number that the caller says, select the preset corresponding to that tone (see above table), press PTT, wait 1 second, then respond.
- To contact the Santa Clara County EOC:
- When ARES/RACES in Santa Clara County has been activated, the amateur radio operators at the county EOC normally monitor CESRS full time.
Shared Resources HF Radio Program (SHARES)
The Department of Homeland Security (DHS) Cybersecurity & Infrastructure Security Agency (CISA) manages the SHARES program. It is not part of amateur radio, although amateur radio operational experience can be useful. The Santa Clara County Office of Emergency Management utilizes SHARES to communicate with the region and state. Frequency and operational information is confidential.