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#71
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Why don't voice radio communications use FM?
"Mxsmanic" wrote in message ... Emily writes: Really? Can you cite some statistics? I'd be very interested in reading them. Just look through accident and incident reports. Radio communication is one of the weak links in the aviation safety chain. -- Transpose mxsmanic and gmail to reach me by e-mail. I read NTSB reports every day for years. I cannot remember communications being anything more than down in the noise level as far as an accident cause and it certainly is not a leading cause of accidents. |
#72
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Why don't voice radio communications use FM?
"Emily" wrote in message . .. Mxsmanic wrote: Emily writes: Really? Can you cite some statistics? I'd be very interested in reading them. Just look through accident and incident reports. Radio communication is one of the weak links in the aviation safety chain. Has it ever been listed as a probable cause by the NTSB? I have read thousands of NTSB reports and cannot remember one. Could be a little CRS in there but not much. |
#73
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Why don't voice radio communications use FM?
Emily wrote:
The tower told the KLM aircraft to stand by at the same time the Pan Am aircraft transmitted, which resulted in a blocking of both transmissions. There were many other steps in the accident chain, but Tenerife was most certainly not caused by a pilot hearing what he wanted to hear. Then why did the aircraft start its takeoff roll, if the pilot didn't hear what he wanted to? The tower only issued the ATC clearance, and the KLM captain seems to have taken that as permission to take off. What else is that but hearing what he wanted to? |
#74
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Why don't voice radio communications use FM?
Mxsmanic,
I have my doubts about fly-by-wire systems or glass cockpits, which seem to be increasingly designed for the convenience of programmers who grew up with Windows rather than for the convenience of pilots. Sorry, but that's just plain BS. -- Thomas Borchert (EDDH) |
#75
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Why don't voice radio communications use FM?
Emily writes:
They were misunderstood a) because people were stepping on other people and b) because the KLM crew had heavy Dutch accents. The reasons why they were misunderstood have never been ascertained, and there are several possibilities. It's not even clear how much was understood or misunderstood, since a number of the people involved are dead. The common point to all the possible scenarios is misunderstood radio communication. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#76
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Why don't voice radio communications use FM?
Emily writes:
Actually, in the Tenerife accident, the only radio problem was caused by simultaneous radio transmissions by aircraft, NOT a pilot hearing want he wanted to hear. There were several problems. The Pan Am crew was not sure of which exit to take from the runway. Neither was the KLM, IIRC. The KLM didn't understand the ATC clearance, and the tower didn't understand the KLM acknowledgement. Pam Am said it was on the runway several times but this was misunderstood as well. There were many misunderstandings, most of them related to radio communication. The tower told the KLM aircraft to stand by at the same time the Pan Am aircraft transmitted, which resulted in a blocking of both transmissions. Not entirely true. Part of it was audible. There were many other steps in the accident chain, but Tenerife was most certainly not caused by a pilot hearing what he wanted to hear. That has never been determined. The most likely cause is that a pilot heard what he wanted to hear, or he deliberately and negligently ignored instructions. Other pilots may also have heard what they wanted to hear. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#77
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Why don't voice radio communications use FM?
Dave Stadt writes:
Nope, it was quite a ways down the line. Morse code via spark gap transmitters was one of the first. All early audio used AM. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#78
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Why don't voice radio communications use FM?
Stefan writes:
Yeah. One pilot talks on AM and the other listens to FM. Great idea. Adds a lot of clarity to the communication. It adds more than you would have with both pilots using AM. However, you're not supposed to listen to other pilots; you're supposed to listen to controllers. All conversations are air-ground, not air-air. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#79
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Why don't voice radio communications use FM?
Dave Stadt writes:
Why screw around with FM. It is old technology, not much beter than AM, and there are much better technologies that would cure the communication problems and lack of frequency availibility. Such as? -- Transpose mxsmanic and gmail to reach me by e-mail. |
#80
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Why don't voice radio communications use FM?
Thomas Borchert writes:
Sorry, but that's just plain BS. Famous last words. -- Transpose mxsmanic and gmail to reach me by e-mail. |
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