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The CCRA was established in 1977 and operates the WA6HAM repeater system.   The CCRA is dedicated to providing the amateur radio community in Contra Costa County and surrounding areas, repeaters that can be used for public service activities.

Please check into the Contra Costa Repeater Association Weekly Net – Mondays at 7:35 PM using one of 3 linked repeaters on 147.735 MHz, 145.49 MHz, 145.41 MHz while using a -600 KHz frequency split with a PL of 107.2 Hz.

The CCRA will have its first post Covid breakfast the 4th Saturday of the month at Legends & Heroes Sports Bar at 9 AM on June 26, 2021.  WELCOME BACK EVERYONE!!!   Legends is located at at the Diablo Creek Golf Course at 4050 Port Chicago Highway in North Concord.


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The CCRA Net Roll Call was updated March 21, 2021 and reflects members who are paid through 2021.

If you are missing from the Roll Call please send an email to ccrasysop@gmail.com and let me know you want to rejoin.

Current Band Conditions

Maximum Usable Frequency

For additional information on MUF use this link to the Near-Real-Time MUF Map.

Current KGO 7 RADAR
Current KOVR 13 Bay Area RADAR Loop
Current KOVR 13 California Satellite Loop
Current KOVR 13 National Satellite Loop
For additional information on thunderstorms and lightning strikes use this link to the Blitzortung.org website.

Current KPIX 5 East Bay Area Highs Forecast
300 mb Jet Stream from SFSU/Meteorology