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Topic: International distress frequency

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Morse code

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	Encyclopedia: Morse code (Site not responding. Last check: 2007-10-13)
		For most of the 20th century, the radio frequency 500 kHz (known as 600 meters or 500 kc for most of the century, before kilohertz replaced kilocycle) was the international calling and distress frequency for ships on the high seas.
		The Modern International Morse code was invented by Friedrich Clemens Gerke in 1848 and used for the telegraphy between Hamburg and Cuxhaven in Germany.
		International Morse code is still in use today, although it has become almost exclusively the province of amateur radio operators.
	www.nationmaster.com /encyclopedia/Morse-code (6801 words)

	[2.0] International Navigation Satellite Systems (Site not responding. Last check: 2007-10-13)
		Although the project bogged down in international squabbles for about a year, they were resolved and the green light for the demonstration-validation ("dem-val") phase was given in the summer of 2003.
		The ELT would be activated in a crash and broadcast a distress signal at 121.5 MHz, the international aircraft distress frequency band.
		The satellites travel in a known orbit, and the slight shifts in frequency of a (more or less) stationary beacon due to the motion of the satellite can be used to provide the general location of the beacon, allowing SAR teams to get close enough to pick up the beacon.
	vectorsite.net /ttgps2.html (3482 words)

	What's the Frequency? - Microwave Encyclopedia - Microwaves101.com
		Here we will answer the question, "what's the frequency?" for about anything you can think of.
		If you have any information on frequencies that we are missing, please send it to us!
		Below is a classic figure that dates back to at least 1968, Bean and Dutton's Radio Meteorology: You should be familiar with the water absorption bands at 22, 183 and 323 GHz, and the oxygen absorption regions at 60 and 118 GHz.
	www.microwaves101.com /encyclopedia/frequency.cfm (392 words)

	What the Bleep Do We Know!? - The Movie
		Wolf is best known for his contributions through technical papers and popular books, but he is frequently in demand as a lecturer, keynote speaker, and consultant to industry and the media.
		She has an international reputation in the field of neuropeptide and receptor pharmacology, and chemical neuroanatomy.
		He was a member of the International Theological Commission, a small group of theologians of international standing, charged with advising the Holy See on theological matters.
	www.whatthebleep.com /scientist (4849 words)

	International distress frequency Definition \| Computer Dictionary \| Define meaning of International distress frequency
		Except for distress (SOS) traffic, stations shifted to nearby "working frequencies" (425, 454, 468, 480, and 512 kHz) to exchange messages once contact was established.
		All large ships at sea had to monitor 500 kHz at all times, either with a licensed radio operator or with equipment that detected an automatic alarm signal.
		Shore stations throughout the world operated on this frequency to exchange messages with ships and to issue warning about weather and the like.
	www.cpupedia.com /definition/international+distress+frequency.aspx (212 words)

	The Future! - Flat-screen TV emits international distress signal (Site not responding. Last check: 2007-10-13)
		An Oregon man discovered earlier this month that his year-old Toshiba Corporation flat-screen TV was emitting an international distress signal picked up by a satellite, leading a search and rescue operation to his apartment in Corvallis, Oregon, 70 miles south of Portland.
		The signal from Chris van Rossmann's TV was routed by satellite to the Air Force Rescue Center at Langley Air Base in Virginia.
		Authorities had expected to find a boat or small plane with a malfunctioning transponder, the usual culprit in such incidents, emitting the 121.5 MHz frequency of the distress signal used internationally.
	www.spinningorca.com /modules.php?name=News&file=article&sid=77 (280 words)

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