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Santa Clara County ARES®/RACES

State and Region Frequencies

The following frequencies can be used to communicate between the Santa Clara County EOC and other Bay Area OAs.

Alameda (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
Alameda (Calling)
Repeater
W6RGG
Frequency
147.240+ PL 107.2
Location
San Leandro
AUXCOM
Alameda (Calling)
Repeater
W6RGG
Frequency
444.200+ PL 107.2
Location
San Leandro
AUXCOM
Contra Costa (Calling)
Repeater
WA6HAM
Frequency
145.490- PL 107.2
Location
Orinda
Contra Costa (Calling)
Repeater
WA6HAM
Frequency
445.625+ PL 79.7
Location
Orinda
Marin
Repeater
TBD
Monterey (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
Napa (Calling)
Frequency
145.820+ PL 151.4
Napa (Calling)
Frequency
145.820+ PL 100
San Benito (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
San Benito (Calling)
Frequency
147.315+ PL 94.8
Location
Multi-site
San Francisco (Tac 1)
Repeater
WA6GG
Frequency
442.050+ PL 127.3
Location
San Franciso
San Francisco (Tac 2)
Repeater
W6CX
Frequency
147.060+ PL 100.0
Location
Mt. Diablo
San Mateo (Bay-side) (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
San Mateo (Bay-side) (Calling)
Repeater
KC6ULT
Frequency
146.865- PL 114.8
Location
Skyline Blvd
San Mateo EOC RACES
San Mateo (Coast-side)
Repeater
TBD
Santa Clara (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
Santa Clara (Primary)
Repeater
K6SNY
Frequency
443.275+ PL 107.2
Location
Crystal Peak
SCC Resource Net South
Santa Clara (Calling)
Repeater
W6GGF
Frequency
442.500+ PL 100.0
Location
Crystal Peak
SCCo Command Net
Santa Clara (Calling)
Repeater
W6TI
Frequency
147.360+ PL 110.9
Location
Black Mountain
SCCo Message Net
Santa Cruz (Primary)
Repeater
WB6ECE
Frequency
441.300+ PL 100.0
Location
Multi-site
SCV Section Net
Solano (Calling)
Frequency
441.150+ PL 77.0
ACS
Sonoma (Calling)
Frequency
146.730 PL 88.5
EOC Tactical
Sonoma (Calling)
Frequency
224.820- PL 103.5
Command 1
Sonoma (Calling)
Frequency
223.760- PL 88.5
Command 2
CountyUse [1]RepeaterFrequencyTX ToneLocationNotes
AlamedaPrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
AlamedaCallingW6RGG147.240+107.2San LeandroAUXCOM
AlamedaCallingW6RGG444.200+107.2San LeandroAUXCOM
Contra CostaCallingWA6HAM145.490-107.2Orinda
Contra CostaCallingWA6HAM445.625+79.7Orinda
MarinTBD
MontereyPrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
NapaCalling145.820+151.4
NapaCalling145.820+100
San BenitoPrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
San BenitoCalling147.315+94.8Multi-site
San FranciscoTac 1WA6GG442.050+127.3San Franciso
San FranciscoTac 2W6CX147.060+100.0Mt. Diablo
San Mateo (Bay-side)PrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
San Mateo (Bay-side)CallingKC6ULT146.865-114.8Skyline BlvdSan Mateo EOC RACES
San Mateo (Coast-side)TBD
Santa ClaraPrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
Santa ClaraPrimaryK6SNY443.275+107.2Crystal PeakSCC Resource Net South
Santa ClaraCallingW6GGF442.500+100.0Crystal PeakSCCo Command Net
Santa ClaraCallingW6TI147.360+110.9Black MountainSCCo Message Net
Santa CruzPrimaryWB6ECE441.300+100.0Multi-siteSCV Section Net
SolanoCalling441.150+77.0ACS
SonomaCalling146.73088.5EOC Tactical
SonomaCalling224.820-103.5Command 1
SonomaCalling223.760-88.5Command 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.

Daytime
Primary
7.192 MHz LSB
Secondary
7.230 MHz LSB
Verified With
Weekly CESN Nets
Nighttime
Primary
3.992 MHz LSB
Secondary
3.960 MHz LSB
Alternate
1.987 MHz LSB
TimePrimarySecondaryAlternateVerified 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.

CESRS Frequencies and Tones
CA State Ops Ctr (SOC) and OAs to the Northeast
Radio Preset
[Frequency][3]
Tone
6
Repeater Location
Mt. Diablo
Verified With
SOC
OAs to the South and for microwave network access
Radio Preset
[Frequency][1]
Tone
1
Repeater Location
Loma Prieta
OAs to the North
Radio Preset
[Frequency][2]
Tone
3
Repeater Location
Mt. Tamalpais
CESRS Frequencies and Tones
DestinationRadio PresetToneRepeater LocationVerified 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.