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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
SWL's should learn CW too.
You never know when you might stumple across a station in distress sending an SOS and you might be the only one that hears it and can get help. SWL's normally listen to AM stations. How would they hear a CW station? When i was a kid in the 60's a local ship to shore cw station could be heard just under the local AM broadcast band station my family listened to. That's what got my interest in radio going. The same thing happens on short wave if you detune it right... |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and-Semaphore Signals ? Do They Defining Amateur Radio ?
Big Rich Soprano wrote:
When i was a kid in the 60's a local ship to shore cw station could be heard just under the local AM broadcast band station my family listened to. That's what got my interest in radio going. The same thing happens on short wave if you detune it right... In that case the AM carrier is the BFO for the CW signal. How many SWL's are going to accidentally "detune it right" for the purpose of hearing an SOS? -- 73, Cecil http://www.qsl.net/w5dxp |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
On Thu, 20 Jul 2006 12:01:06 GMT, Cecil Moore
wrote: In that case the AM carrier is the BFO for the CW signal. How many SWL's are going to accidentally "detune it right" for the purpose of hearing an SOS? You can hear the change in noise as a carrier goes on and off. It's extremely difficult to copy high speed CW like that if the signal is strong, but a weak signal or slower CW is just as easy to copy as noise as it is to copy as a pure tone. T1 doesn't mean uncopyable, it just means ragged tone. |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and-Semaphore Signals ? Do They Defining Amateur Radio ?
Al Klein wrote:
You can hear the change in noise as a carrier goes on and off. It's extremely difficult to copy high speed CW like that if the signal is strong, but a weak signal or slower CW is just as easy to copy as noise as it is to copy as a pure tone. T1 doesn't mean uncopyable, it just means ragged tone. So now amateurs and SWL's should be Morse code proficient not only using tones but using the swishing sound made when a BFO is not present? -- 73, Cecil http://www.qsl.net/w5dxp |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
On Thu, 20 Jul 2006 12:36:03 GMT, Cecil Moore
wrote: So now amateurs and SWL's should be Morse code proficient not only using tones but using the swishing sound made when a BFO is not present? If you can copy CW, you can copy CW. The tone it's coming in with doesn't make much difference. I've copied signals so weak that they were just changes in the quality of the noise and I've copied perfect S9++T9 signals. They were all mostly R9. The R only changes if the signal fades completely out or if there's interference that masks the signal. Try that with PSK. |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and-Semaphore Signals ? Do They Defining Amateur Radio ?
Al Klein wrote:
If you can copy CW, you can copy CW. I can copy CW, but I cannot copy CW when the receiver is in AM mode and there's no CW tone. I'm glad you're that good but I am not. -- 73, Cecil, http://www.qsl.net/w5dxp |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
"Cecil Moore" wrote in message et... Al Klein wrote: If you can copy CW, you can copy CW. I can copy CW, but I cannot copy CW when the receiver is in AM mode and there's no CW tone. I'm glad you're that good but I am not. -- 73, Cecil, http://www.qsl.net/w5dxp I am not good at code but I can do it. You just listen to the rhythm. Dee, N8UZE |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
In article ,
Cecil Moore wrote: Al Klein wrote: You can hear the change in noise as a carrier goes on and off. It's extremely difficult to copy high speed CW like that if the signal is strong, but a weak signal or slower CW is just as easy to copy as noise as it is to copy as a pure tone. T1 doesn't mean uncopyable, it just means ragged tone. So now amateurs and SWL's should be Morse code proficient not only using tones but using the swishing sound made when a BFO is not present? The swishing sound is coming from aliens. Try making the same sounds back to them. You might get a more intelligent conversation going than the one in this cross posted thread. -- Telamon Ventura, California |
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Morse Code -plus- Continuous Wave (CW) Radio Transmission -and- Semaphore Signals ? Do They Defining Amateur Radio ?
LOL
"Telamon" wrote in message ... In article , Cecil Moore wrote: Al Klein wrote: You can hear the change in noise as a carrier goes on and off. It's extremely difficult to copy high speed CW like that if the signal is strong, but a weak signal or slower CW is just as easy to copy as noise as it is to copy as a pure tone. T1 doesn't mean uncopyable, it just means ragged tone. So now amateurs and SWL's should be Morse code proficient not only using tones but using the swishing sound made when a BFO is not present? The swishing sound is coming from aliens. Try making the same sounds back to them. You might get a more intelligent conversation going than the one in this cross posted thread. -- Telamon Ventura, California |
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Why Should Only White Males "Know" CW ? ? ? - Women and Minorities Need CW Too ! ! !
Cecil Moore wrote: Al Klein wrote: You can hear the change in noise as a carrier goes on and off. It's extremely difficult to copy high speed CW like that if the signal is strong, but a weak signal or slower CW is just as easy to copy as noise as it is to copy as a pure tone. T1 doesn't mean uncopyable, it just means ragged tone. So now amateurs and SWL's should be Morse code proficient not only using tones but using the swishing sound made when a BFO is not present? -- 73, Cecil http://www.qsl.net/w5dxp CM, OK - Lets make "CW" 5 WPM a High School Graduation Requirement and Start the Nation-Wide Testing of Every Child at Every Grade Level to Ensure that Our Kids Know "CW" ! ! ! We can call it the Uniform Education "Code" {CW} Law -and- Require that No Child Is Left Behind the "CW" Learning Curve ! Why should only White Males 'know' CW ? ? ? Equality Demands that Women and Minorities "Know" CW Too ! ! ! - - - We need an Urgent National Federally Funded Program to Close the "CW" Gap [.] oops - am i ranting ? ? ? . . . oh never mind ! ~ RHF |
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