Kon-Tiki radio setup
RADIO OFFICERS
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From: Jouko Häyrynen
.. per Wikipedia: Communications The expedition, with the amateur radio call sign of LI2B, maintained regular communication with a number of American, Canadian, and South American stations that kept the Norwegian Embassy in Washington, D.C., abreast of Kon-Tiki's efforts. The success of these contacts was due to the skill of former World War II Norwegian underground radio operators, Knut Haugland, and Torstein Raaby. On August 5, Haugland contacted Oslo, Norway, for a circuit of about 10,000 miles. [2][3] The expedition carried three watertight radio transmitters. The first operated on the 40 and 20 meter band, the second on 10 meters, and the third on 6 meters. Each unit was made up entirely of 2E30 vacuum tubes providing 10 watts of RF input. As an emergency backup they also carried a German Mark V transceiver originally re-created by the SOE in 1942. Power was supplied by batteries and a hand-cranked generator. [4] The Kon-Tiki's radio receiver was a National Radio Company NC-173. In his book Kon-Tiki (Rand-McNally 1950, p. 263), Heyerdahl describes the NC-173 slowly drying out on an uninhabited South Sea island after getting soaked in a shipwreck, gradually receiving at higher and higher frequencies until eventually settling on the 13.990 MHz frequency needed to make contact. [5] The crew used their hand-cranked emergency transmitter to send out an "all well, all well" message via LI2B just in time to head off a massive rescue attempt. [6] best 73s HNY2010 de Jouko OH1RX / ex-OHC/OFJ/OIID/OIGP
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ragnar otterstad
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