Status: Indexed

An arrangement was made for rating the radiobeacons on a percentage basis for efficiency of operation. For each various type of failure, an established number of points were deducted from a perfect score. These scores were then arranged in chronological order and published each month. However, a discrepancy was evident in that one station operating on the wrong minute for 35 minutes received the same percentage rating as a station being off sequence for only 10 minutes. A new plan for such rating was established and put into operation in the early part of 1945. This new system was so arranged that an offending radiobeacon station was marked down for not only the type of failure, but for the number of minutes of faulty operation. This accounted for the low percentage rating for 1945 of 94% as compared with the percentage rating of 96% for 1943 and 98% for 1944. Actually, the number of failures occurring after the February survey (see survey below) in 1945 became less than those in the months prior to that date.

The Radiobeacon Station guilty of the most failures was on the Columbia River Station. The high percentage of failures in this case was due to a combination of old equipment, fluctuating voltage, disinterested personnel, too small a complement and the motion of the ship, which tended to dislodge the sensitive parts, especially during heavy seas. Little or no interference was found in any of the radiobeacons. One instance of expeditious conduct occurred at Yaquina Head Radiobeacon Station when lightning struck the building in which the beacon was housed and destroyed the equipment and severely injured the operator on watch. Only twelve (12) minutes elapsed between the time the radiobeacon was struck and put out of commission before the standby unit was operating normally.

Peace time operation of the radiobeacon consisted of the distance finding dash being sounded when fog was actually in the area of the radiobeacon and the fog signal was in operation. During the war, the distance finding dash was used continuously as for fog for the purpose of not allowing the enemy to know whether it was foggy or clear weather. Two days after the declaration of war, on 9 December, 1941, the radiobeacon stations were instructed that no radiobeacon signals and no test transmissions in the radiobeacon band were to be permitted during the emergency without specific authorization from the District Coast Guard Officer. This order permitted no variation and forbade all radio frequencies radiation within the band from 285 to 315 kcs. from any radiobeacon stations. Radiobeacon transmitters on any frequency

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