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Man's TV Triggers Satellite Rescue System, FCC Investigates
croxis
I am the walrus
in Zocalo v2.0
Shamlessly taken from space.com
[quote]
In that classic movie, “The Day the Earth Stood Still,“ the alien ambassador Klaatu demonstrates detailed knowledge of modern Earth history. How does he know all this, he is asked. “We've been monitoring your radio broadcasts for a good many years. That's how we learned your languages. Lately, we've been getting your television also,“ he said.
Klaatu's people must have been bemused earlier this week when they received a search-and-rescue signal from a Corvallis, Ore. man's flat-screen TV.
The U.S. Federal Communications Commission (FCC) was scheduled to begin conducting tests Oct. 22 to determine whether it was a malfunction in a single television set or a more systemic problem that caused the Toshiba-brand TV to trigger an international satellite search and rescue system.
The Oct. 4 incident involved polar orbiting satellites, which automatically relayed the distress call to a ground station.
“To my knowledge, this is the first time we have had a TV signal we have detected,” said Sam Baker, chief of the U.S mission control center in Suitland., Md. for COSPAS-SARSAT, a 35-nation organization that oversees the global search and rescue system.
COSPAS is a Russian acronym for the words “Cosmicheskaya Sistyema Poiska Avariynich Sudov,” meaning Space System for the Search of Vessels in Distress. SARSAT is an English acronym of Search and Rescue Satellite-Aided Tracking.
Concerned by the specter of modern TV sets possibly broadcasting such signals, the FCC, which polices the public airwaves, is testing offending TV set to determine whether the problem is systemic or unique to that set, Baker said.
“We are potentially quite concerned with this,” Bruce Romano, a spokesman for the FCC, said Oct. 21. “If this is an anomaly with just one TV, we won’t be terribly concerned.”
In a company statement, Toshiba America Consumer Products said it “has no recollection of any issues related to distress signal transmissions from any of its products. We have taken all the steps necessary to replace the product in question and we look forward to receiving the product from the consumer so we can do some further testing to determine if it was an issue with the TV or otherwise.”
The company also said it “stringently follows all FCC requirements for the development and testing of its products.”
Events like the TV signal triggering the COSPAS-SARSAT system are extremely rare, occurring two or three times a year, on average, according to Maj. Allan Knox, assistant director of operations at the Air Force Rescue Coordination Center at Langley Air Force Base, Va. Usually, they are caused by lightning strikes or, even more rarely, by badly-made equipment, he said.
“Over the years I’ve been here, we have chased signals to a variety of malfunctioning equipment, from garage door openers to one of the most interesting — the University of Arkansas had a malfunctioning (Sony) Jumbotron (a giant television used at sporting arenas).” A malfunctioning capacitor caused “very serious interference” with the international SAR system, Knox said.
The Toshiba TV is probably a one-time event, Knox said. “In my experience these are generally flukes; something is malfunctioning.” Beacons that have been accidentally switched on cause most false alarms, Knox said.
However, Baker said there also are reports of another TV broadcasting a SAR signal from Canada, “but I don’t know what frequency it is on.” The frequency is a critical issue. Of every 50 alerts received by the satellites, only one is a genuine call for help, according to the COSPAS-SARSAT Web site. It is the primary reason the frequency is being phased out by 2009, and all alerts will be broadcast on 406 MHz, which is digital. That system reduces false alerts to about one in 17.
If the beacon sending the signal has been properly registered, COSPAS- SARSAT or the rescue agency can make a telephone call to the beacon’s owner to check whether the alert is genuine.
Also, Baker said the 121.5 MHz signals are extremely difficult to screen for anomalies, while the digital signals are much more easily analyzed to see if they are likely to be genuine broadcasts from a beacon.
The COSPAS-SARSAT Web site also says that with 406 MHz beacons, “the position of the distress can be relayed to rescue services more quickly, more reliably and with greater accuracy.”
The signal from Chris van Rossmann’s TV was routed by a polar orbiting satellite to the Air Force Rescue Center at Langley Air Force Base, Va. The rescue center alerted Oregon’s Office of Emergency Management who sent a Washington-state Civil Air Patrol unit to check on the SAR signal. When they arrived, Knox said, they found a beacon sending out a SAR signal from a helicopter on top of a flatbed truck. But it wasn’t the only signal, and the air patrol tracked the other signal to the Toshiba TV set.
Toshiba did give the Corvallis man a replacement set.[/quote]
Stupid Beavers. This goes to show that the Ducks are far superior.
[quote]
In that classic movie, “The Day the Earth Stood Still,“ the alien ambassador Klaatu demonstrates detailed knowledge of modern Earth history. How does he know all this, he is asked. “We've been monitoring your radio broadcasts for a good many years. That's how we learned your languages. Lately, we've been getting your television also,“ he said.
Klaatu's people must have been bemused earlier this week when they received a search-and-rescue signal from a Corvallis, Ore. man's flat-screen TV.
The U.S. Federal Communications Commission (FCC) was scheduled to begin conducting tests Oct. 22 to determine whether it was a malfunction in a single television set or a more systemic problem that caused the Toshiba-brand TV to trigger an international satellite search and rescue system.
The Oct. 4 incident involved polar orbiting satellites, which automatically relayed the distress call to a ground station.
“To my knowledge, this is the first time we have had a TV signal we have detected,” said Sam Baker, chief of the U.S mission control center in Suitland., Md. for COSPAS-SARSAT, a 35-nation organization that oversees the global search and rescue system.
COSPAS is a Russian acronym for the words “Cosmicheskaya Sistyema Poiska Avariynich Sudov,” meaning Space System for the Search of Vessels in Distress. SARSAT is an English acronym of Search and Rescue Satellite-Aided Tracking.
Concerned by the specter of modern TV sets possibly broadcasting such signals, the FCC, which polices the public airwaves, is testing offending TV set to determine whether the problem is systemic or unique to that set, Baker said.
“We are potentially quite concerned with this,” Bruce Romano, a spokesman for the FCC, said Oct. 21. “If this is an anomaly with just one TV, we won’t be terribly concerned.”
In a company statement, Toshiba America Consumer Products said it “has no recollection of any issues related to distress signal transmissions from any of its products. We have taken all the steps necessary to replace the product in question and we look forward to receiving the product from the consumer so we can do some further testing to determine if it was an issue with the TV or otherwise.”
The company also said it “stringently follows all FCC requirements for the development and testing of its products.”
Events like the TV signal triggering the COSPAS-SARSAT system are extremely rare, occurring two or three times a year, on average, according to Maj. Allan Knox, assistant director of operations at the Air Force Rescue Coordination Center at Langley Air Force Base, Va. Usually, they are caused by lightning strikes or, even more rarely, by badly-made equipment, he said.
“Over the years I’ve been here, we have chased signals to a variety of malfunctioning equipment, from garage door openers to one of the most interesting — the University of Arkansas had a malfunctioning (Sony) Jumbotron (a giant television used at sporting arenas).” A malfunctioning capacitor caused “very serious interference” with the international SAR system, Knox said.
The Toshiba TV is probably a one-time event, Knox said. “In my experience these are generally flukes; something is malfunctioning.” Beacons that have been accidentally switched on cause most false alarms, Knox said.
However, Baker said there also are reports of another TV broadcasting a SAR signal from Canada, “but I don’t know what frequency it is on.” The frequency is a critical issue. Of every 50 alerts received by the satellites, only one is a genuine call for help, according to the COSPAS-SARSAT Web site. It is the primary reason the frequency is being phased out by 2009, and all alerts will be broadcast on 406 MHz, which is digital. That system reduces false alerts to about one in 17.
If the beacon sending the signal has been properly registered, COSPAS- SARSAT or the rescue agency can make a telephone call to the beacon’s owner to check whether the alert is genuine.
Also, Baker said the 121.5 MHz signals are extremely difficult to screen for anomalies, while the digital signals are much more easily analyzed to see if they are likely to be genuine broadcasts from a beacon.
The COSPAS-SARSAT Web site also says that with 406 MHz beacons, “the position of the distress can be relayed to rescue services more quickly, more reliably and with greater accuracy.”
The signal from Chris van Rossmann’s TV was routed by a polar orbiting satellite to the Air Force Rescue Center at Langley Air Force Base, Va. The rescue center alerted Oregon’s Office of Emergency Management who sent a Washington-state Civil Air Patrol unit to check on the SAR signal. When they arrived, Knox said, they found a beacon sending out a SAR signal from a helicopter on top of a flatbed truck. But it wasn’t the only signal, and the air patrol tracked the other signal to the Toshiba TV set.
Toshiba did give the Corvallis man a replacement set.[/quote]
Stupid Beavers. This goes to show that the Ducks are far superior.
Comments
[B]Interesting. Good to know that simple everyday electronics can communicate with important satelites for no reason at all. You would think that the satelite system would be designed such that it is nearly impossible for a normal home technology to even come close to the right level of power and frequency transmission...but no...they make something that can result from malfunctions. :rolleyes: [/B][/QUOTE]And I always scoffed at the technological stunts that people pull off in the movies... ;)
I remember a story about the early days of RCA broadcasts and a particular AM Station Antenna frame that was resonating with the radio stations broadcast audio...
The Guard who was watching the site said he could hear the broadcast coming from the Antenna. Turns out, one of the bolts that held down the antenna frame to the cement block had rusted in such a way as to form a diode junction between the antenna frame and ground...
Thus the radio signal was rectified just like a signal detector circuit and caused the frame of the antenna to vibrate just like a speaker.
How's that for freak of nature stuff?
That was one huge cat-whisker! ;) :D
[QUOTE][i]Originally posted by croxis [/i]
[B]Shamlessly taken from space.com
Stupid Beavers. This goes to show that the Ducks are far superior. [/B][/QUOTE]
Hey Corvallis has to get in the news somehow considering the place is so damned boring versus the insanity that is Eugene.
[B]I'll take boring over insanity any day of the week; we've got enough of the latter here in Albuquerque and JackN is probably up to his ears in it in over in the Not-so-Golden State...;) [/B][/QUOTE]
I know you're right... ;)
:rolleyes:
[B]I'll take boring over insanity any day of the week; we've got enough of the latter here in Albuquerque and JackN is probably up to his ears in it in over in the Not-so-Golden State...;) [/B][/QUOTE]
If you don't want insanity, then why do you come here? :)
[B]If you don't want insanity, then why do you come here? :) [/B][/QUOTE]
Well, as any good Javascript programmer would say...
There's a METHOD to our madness... ;)
[B]Well, as any good Javascript programmer would say...
There's a METHOD to our madness... ;) [/B][/QUOTE]
Your're [b]really[/b] pushing it right now... :D
[B]Well, as any good Javascript programmer would say...
There's a METHOD to our madness... ;) [/B][/QUOTE]
Or: "There's insanity, and there's [B][I]insanity[/I][/B]...":D