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#31
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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. If you're going to make the claim, point to a viable source of information. Without providing data, it is just your opinion. I have read thousands of NTSB reports and don't remember a single one where the technological limitation inherent in AM radio was a significant cause of the accident. -- Transpose mxsmanic and gmail to reach me by e-mail. KB |
#32
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Why don't voice radio communications use FM?
Mxsmanic schrieb:
If you hear something that could be "five" or "nine," you're much more likely to choose the number that suits you than you are if you hear something that is unambiguously one of the two. That's exactly the reason why it's "niner". Stefan |
#33
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Why don't voice radio communications use FM?
Mxsmanic wrote:
The worse the sound quality is, the more pilots must "fill in the blanks," and the more likely they are to hear what they want to hear. If you hear something that could be "five" or "nine," you're much more likely to choose the number that suits you than you are if you hear something that is unambiguously one of the two. You are not a pilot, it seems. These claims of yours read as if they are opinion based on an outsider's perspective, not one who actually has some hours of aviation radio experience. With regards to aviation communication, "niner" is the proper phonetic pronunciation of nine and "fife" is the proper pronunciation of five, although admittedly "fife" is not as widely used as it should be. -- Peter |
#34
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Why don't voice radio communications use FM?
Mxsmanic wrote:
From the NTSB and several books on the subject. Have a name of one of these books that claims that aviation communication is the leading cause of aviation accidents? It's routine in linguistics to unconsciously guess. A person listening to familiar sounds in a familiar context will "fill in the blanks" for any sounds that cannot be unambiguously distinguished, and he will do this without thinking. You imply that this is a very common occurrence. Sorry, but I am unable to accept your premise without some evidence to back up this claim. If he guesses wrong, trouble can result, and accidents have happened in aviation for this reason (the most famous probably being the one at Tenerife). My understanding of the accident at Tenerife is that it had more to do with a fateful heterodyne and a captain who was asserting his own way, rather than misunderstood communications. -- Peter |
#35
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Why don't voice radio communications use FM?
"Mxsmanic" wrote in message ... Ron Natalie writes: No actually, it's just historical. Early av radio used AM, and for that reason we still do. If that were the only reason, nothing would ever change in aviation. Actually, not much does change in aviation compared with other fields of human endeavor . But changing to FM would require a new radio to be simultaneously installed in every cockpit in the world. The only way to accomplish that would be for every plane with a new radio to transmit in "parallel" (as someone already suggested) for a period of years on both the new mode and the old mode. What are the chances of AOPA allowing that to happen? That said, I would really like to see it. It would be great to have enough frequencies to go around so that you would not have to be constantly mentally filtering out the transmissions from adjacent uncontrolled airports. Vaughn |
#36
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Why don't voice radio communications use FM?
Peter R. writes:
My understanding of the accident at Tenerife is that it had more to do with a fateful heterodyne and a captain who was asserting his own way, rather than misunderstood communications. Some of the words on the cockpit recording are impossible to understand even today. That's pretty strong evidence that misunderstood communications had an important role in this accident. In fact, there are several instances of misunderstood radio communication involved. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#37
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Why don't voice radio communications use FM?
Stefan writes:
That's exactly the reason why it's "niner". They still sound the same if the channel is noisy enough. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#38
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Why don't voice radio communications use FM?
Peter R. writes:
With regards to aviation communication, "niner" is the proper phonetic pronunciation of nine and "fife" is the proper pronunciation of five, although admittedly "fife" is not as widely used as it should be. They still sound very much the same. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#39
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Why don't voice radio communications use FM?
Mxsmanic,
From the NTSB and several books on the subject. Like which? -- Thomas Borchert (EDDH) |
#40
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Why don't voice radio communications use FM?
Mxsmanic,
Do you use an ANR headset? No. The source of the noise is not anything around me, it's coming from the channel itself. ANR headsets enhance speech as well as reducing noise. -- Thomas Borchert (EDDH) |
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