Santa Clara County ARES®/RACES
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Regional (and beyond) Frequencies and Nets

Overview   |   Voice   |   Data  

Overview

These frequencies and nets are used by the Santa Clara County EOC to reach other Operational Areas (OAs), the Central Region EOC (REOC) and the State EOC (SOC), and vice versa.

Note: This is a work in progress. Updates will occur as information is provided by nearby counties.

 

Voice

VHF/UHF Amateur Radio

The following frequencies can be used to communicate between the Santa Clara County EOC and other Bay Area OAs. Text in grey has not been verified yet.

County Use
[1]

Repeater
Call Sign

 RX Freq
[2]		 RX Tone
or NAC		 TX Freq
[2,3]		 TX Tone
or NAC		 Location Notes
Alameda
  Primary WB6ECE 441.300 none + 100.0 Multi-site SCV Section Net
  Calling W6RGG 147.240   + 107.2 San Leandro  
Contra Costa
  Calling WA6HAM 145.490   - 107.2 Orinda  
  Calling WA6HAM 445.625   + 79.7 Orinda  
Marin
  TBD              
Monterey
  Primary WB6ECE 441.300 none + 100.0 Multi-site SCV Section Net
  Secondary K6SNY 443.275   + 107.2 Crystal Peak SCV Section Net (Alt)
Napa
  TBD              
San Benito
  Primary WB6ECE 441.300 none + 100.0 Multi-site SCV Section Net
  Secondary K6SNY 443.275   + 107.2 Crystal Peak SCV Section Net (Alt)
San Francisco
  TBD              
San Mateo (Bay-side)
  Primary WB6ECE 441.300 none + 100.0 Multi-site SCV Section Net
  Secondary K6SNY 443.275   + 107.2 Crystal Peak SCV Section Net (Alt)
  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 none + 100.0 Multi-site SCV Section Net
  Secondary K6SNY 443.275   + 107.2 Crystal Peak SCV Section Net (Alt)
  Calling W6GGF 442.500   + 100.0 Crystal Peak SCCo Command Net
  Calling W6TI 147.360   + 110.9 Black Mountain SCCo Message Net
Santa Cruz
  Primary WB6ECE 441.300 none + 100.0 Multi-site SCV Section Net
  Secondary K6SNY 443.275   + 107.2 Crystal Peak SCV Section Net (Alt)
Solano
  TBD              
Sonoma
  TBD              

Notes:

  1. Use:
    • 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 a inter-county frequency. Make contact on the calling frequency, then move to an inter-county frequency
  2. RX/TX Frequency
    • RX = receive = repeater output
    • TX = transmit = repeater input
  3. TX Freq:
    • A "+" or "-" indicates standard offset (2m = 600 kHz; 1.25m = 1.6 MHz; 70cm = 5 MHz; 33cm = 12 MHz; 23cm = 20 MHz)

Contacting the Santa Clara County EOC:

When ARES/RACES in Santa Clara 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 or K6SNY.
  • 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 MHz (+) 100.0 Hz
    • Alternate = K6SNY (Crystal Peak): 443.275 MHz (+) 107.2 Hz

 

Santa Clara Valley Section Repeater Info:

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 MHz (+) 100.0 Hz (do not use tone squelch)

For more info on the WB6ECE system, including repeater locations and tones, visit: http://www.wb6ece.org/

Alternate: K6SNY

The K6SNY repeater on Crystal Peak is primarily used as an alternate for the Santa Clara County Resource Net or Command Net. If it is not being used for those functions, K6SNY is also available as an alternate to the WB6ECE repeater system (listed above) for section-wide inter-county EOC communications.

  • K6SNY: 443.275 MHz (+) 107.2 Hz

Alternate: WR6ABD

The WR6ABD repeater on Loma Prieta has been used in the past for NTS traffic.

  • WR6ABD (Loma Prieta) 146.640 MHz (-) 162.2 Hz

 

CESRS (VHF)

The California Office of Emergency Services (CalOES) operates the California Emergency Services Radio System (CESRS) for statewide VHF communications. The acronym CESRS is typically pronounced "Ceasars". 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.

Frequencies and tones:

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  

Making or Receiving a Call:

  • 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.

Contacting 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.

For more info on the California Emergency Services Radio System (CESRS), consult the CESRS Documentation or the CESRS Routing and Dialing Guide.

 

CESN (HF Amateur Radio)

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.

Calling frequencies:

  Primary Secondary Alternate Verified With
Daytime 7.192 MHz LSB 7.230 MHz LSB   San Diego area
Nightime 3.992 MHz LSB 3.960 MHZ LSB 1.987 MHz LSB  

Contacting the Santa Clara County EOC:

  • SCCo ARES/RACES does not usually monitor HF. Contact the SCCo EOC by other means to arrange a schedule.
  • SCCo ARES/RACES has 80-10m capability.

For more info on the California Emergency Services Net (CESN), including weekly net times and frequencies, visit: http://www.acscalifornia.org/nets.html

 

SHARES (Shared Resources [SHARES] HF Radio Program)

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.

Website: https://www.cisa.gov/shared-resources-high-frequency-hf-radio-program

 

Data

VHF Packet

User Access

The Santa Clara County packet network is reachable from surrounding counties. All surrounding counties have tactical call signs that are preconfigured in each of the BBSs. Simply connect using the appropriate tactical call sign and send to the appropriate tactical call sign. The preconfigured tactical call signs have the form of XXXEOC, where "XXX" is the tactical prefix assigned to the county.

For more info on the Santa Clara County BBSs, including frequencies and tactical prefixes, visit: http://www.scc-ares-races.org/freqs/packet-freqs.html

BBS to BBS Forwarding

Our BBSs are reachable via the traditional BBS network, AMPRnet or via direct IP and/or radio link. Surrounding counties are encouraged to establish their own packet BBS systems and then link their BBS to the Santa Clara County network.

For more info on BBS links to the Santa Clara County BBS network, visit: http://www.scc-ares-races.org/data/packet/bbs-links.html

Addressing

The Santa Clara County Packet Network has two-way connectivity to the traditional BBS network, AMPRnet, WinLink 2000 (via Internet) and Internet e-mail.

For more info on these connections, including how to address messages, visit: http://www.scc-ares-races.org/data/packet/packet-addressing.html

 

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This page was last updated on 22-Sep-2020