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PACIFICONSM History
The annual ARRL Pacific Division Conference is presented by the Organizing Committee & Mount Diablo Amateur Radio Club. 2026 will be our 18th time at the San Ramon Marriott and the 33rd time this group has hosted. The hamfest/convention has a wonderful history dating back to 1920. We share a heritage with many other ARRL events around the country, each with a unique style. Our event has been named Pacificon since the mid 1980s.
The current seven Sections (managers, boundaries) in the Pacific Division (ARRL) are (alphabetically):
East Bay (arrleb.org, arrl EB) - CA counties of Napa, Solano, Contra Costa and Alameda
Nevada (arrl NV) - all counties
Pacific (arrl Pacific) - Hawaii and U.S. possessions in the Pacific
Sacramento Valley (arrlsacvalley.org, arrl SV) - CA counties of Alpine, Amador, Butte, Colusa, El Dorado, Glenn, Lassen, Modoc, Nevada, Placer, Plumas, Sacramento, Shasta, Sierra, Siskiyou, Sutter, Tehama, Trinity, Yolo, Yuba
San Francisco (arrl SF) - CA counties of Del Norte, Humboldt, Lake, Marin, Mendocino, San Francisco, Sonoma
San Joaquin Valley (arrl SJV) - CA counties of Calaveras, Fresno, Kern, Kings, Madera, Mariposa, Merced, Mono, San Joaquin, Stanislaus, Tulare, Tuolumne
Santa Clara Valley (arrlsantaclaravalley.org, arrl SCV) - CA counties of Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz
Pacific Divison Conference History
Year Location Club Chair
2026 San Ramon Marriott mdarc.org Antonis Papatsaras, AA6PP
2025 San Ramon Marriott mdarc.org Julie Mah, WJ8MAH
2024 San Ramon Marriott mdarc.org Julie Mah, WJ8MAH
2023 San Ramon Marriott mdarc.org Julie Mah, WJ8MAH
2022 San Ramon Marriott mdarc.org Julie Mah, WJ8MAH
2021 San Ramon Marriott mdarc.org Julie Mah, WJ8MAH
2020 Canceled due to COVID-19 pandemic Julie Mah, WJ8MAH
2019 San Ramon Marriott mdarc.org Misa Siemons, KJ6BUE
2018 San Ramon Marriott mdarc.org Misa Siemons, KJ6BUE
2017 San Ramon Marriott mdarc.org Misa Siemons, KJ6BUE
2016 San Ramon Marriott mdarc.org Misa Siemons, KJ6BUE
2015 San Ramon Marriott mdarc.org Trevor Hall, WA6JAU
2014 Santa Clara Marriott mdarc.org Trevor Hall, WA6JAU
2013 Santa Clara Marriott mdarc.org Jim Siemons, AF6PU/W6LK
2012 Santa Clara Marriott mdarc.org Jim Siemons, W6LK National Convention
2011 Santa Clara Marriott mdarc.org John Ronan, K3ZJJ
2010 San Ramon Marriott mdarc.org Marty Hayman, W6MDH
2009 Canceled due to excessive hotel costs Marty Hayman, W6MDH
2008 San Ramon Marriott mdarc.org Dick Brown, KT6X
2007 San Ramon Marriott mdarc.org Dick Brown, KT6X
2006 San Ramon Marriott mdarc.org Joe Cusumano, KF6RGH, Marty Hayman, W6MDH
2005 San Ramon Marriott mdarc.org Marty Hayman, W6MDH
2004 San Ramon Marriott mdarc.org Marty Hayman, W6MDH
2003 San Ramon Marriott mdarc.org Greg Estep, KE6VTA
2002 Concord Sheraton mdarc.org Greg Estep, KE6VTA
2001 Concord Sheraton mdarc.org Greg Estep, KE6VTA
2000 Concord Sheraton mdarc.org Greg Estep, KE6VTA
1999 Concord Sheraton mdarc.org Greg Estep, KE6VTA
1998 Concord Sheraton mdarc.org Greg Estep, KE6VTA
1997 Concord Hilton mdarc.org Greg Estep, KE6VTA
1996 Concord Hilton mdarc.org Dick Brown, KT6X
1995 Concord Hilton mdarc.org Dick Brown, KT6X
1994 Concord Hilton mdarc.org Dick Brown, KT6X
1993 Concord Hilton mdarc.org Pete Tormey, N6QGN
1992 Concord Hilton mdarc.org Pete Tormey, N6QGN
1991 Canceled due to staffing
1990 San Jose Le Baron Hotel SCCARA
1989 Santa Cruz SCCARC
1988 San Jose Le Baron Hotel SCCARA
1987 San Jose Le Baron Hotel SCCARA
1986 San Jose Le Baron Hotel SCCARA
1985 Las Vegas Hacienda Hotel
1984 Santa Clara Marriott SCCARA (ARCSJ)
1983 Reno
1982 Santa Cruz
1981
1980 Santa Clara Marriott SCCARA
1979 Reno
1978
1977
1976 Santa Clara SCCARA
1975
1974 Royal Coach, San Mateo SCCARA
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964 Sacramento
1963
1962
1961
1960
1959 Honolulu
1958
1957
1956 San Francisco National Convention
1955
1954
1953
1952 San Francisco
1951
1950
1949
1948
1947
1946
1945
1944
1943
1942
1941
1940
1939
1938
1937
1936
1935
1934
1933 San Jose Hotel St. Claire SCCARA
1932
1931
1930
1929
1928
1927
1926
1925
1924 San Francisco SFRC
1923
1922
1921
1920 San Francisco SFRC
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