The longwave receive site at Marshall (or Marshalls or Fish-O-Mens) was established in 1913 by the American Marconi Company to compliment the transmitting station in Bolinas. Marshall is located along the east shore of Tomales Bay.
The antenna for the station was supported by the standard 300ft Marconi pressed steel towers that were arrayed along the ridge above the station. The bases and guy points remain in place today.
Photos appear to show that the antenna consisted of a single wire that was terminated at the operations building. Balancing antennas also were used in an attempt to phase out static.
The single wire antenna was not a Beverage since Dr. Beverage did the work on his wave antenna long after the assets of the American Marconi Company were transferred to the Radio Corporation of America.
But with the advent of the short waves a commercially viable for trans-oceanic communications, Dr. Beverage was called in by RCA. No flat land was available in the Marshall area for the forest of antennas needed for the new short wave point to point system. Dr. Beverage was assigned to survey the area and select a site for a new receive station. He picked an area on the Point Reyes peninsula where the new station was built in 1929 and where in remains today.
MRHS member Richard Dillman visited the Marshall site to photograph the artifacts and buildings remaining there.