Understanding Radio Bands: Amplitude & Frequency

In summary, radio bands refer to the different ranges of frequencies used for radio communication. Amplitude and frequency are two key factors that determine the characteristics of a radio wave. Amplitude refers to the height of the wave and determines the strength of the signal, while frequency refers to the number of waves per second and determines the rate at which the signal is transmitted. AM (Amplitude Modulation) and FM (Frequency Modulation) are the two main methods of encoding information onto a radio wave for transmission. Understanding the relationship between amplitude and frequency is crucial for effective communication via radio waves.
  • #36
sophiecentaur said:
The term "CW" means two different things, according to context. If you say you picked up a CW signal, that does not imply that some old geyser was using it to send Morse with. If you say you were chatting to someone using CW, the old geyser was definitely there on his key! In my head, I was including Morse in amongst all the other mod systems. (not carefully, perhaps)
:wink:

https://www.yellowstonepark.com/.image/t_share/MTQ3MzIwMDY3OTc4NjM1MDU1/yellowstone_old_faithful.jpg
1576359060564.png


https://clipartstation.com/wp-content/uploads/2018/10/old-geezer-clipart-7.jpg
1576359129325.png
 
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  • #37
@berkeman
I see you found my publicity photo somewhere.
I guess the spelling is GeeZer.
 
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  • #38
Dah dit dah dah dit di dah dah dit
 
  • #39
Paul Colby said:
Dah dit dah dah dit di dah dah dit
Some punctuation would help.
Does that begin with T, N, K or Y. Does that end with E, N, G or P.
 
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  • #40
Dah dit dah dah, dit, dit dah dah dit

dit dit, dah
dit dah dah, dah dah dah, dit dit dah, dit dah dit dit, dah dit dit o:)
 
  • #41
berkeman said:
:wink:

https://www.yellowstonepark.com/.image/t_share/MTQ3MzIwMDY3OTc4NjM1MDU1/yellowstone_old_faithful.jpg
View attachment 254130
Now you've got me wondering if there's a way to modulate a geyser. :devil:
 
  • #42
dlgoff said:
Now you've got me wondering if there's a way to modulate a geyser. :devil:
Put him in a barber’s shop quartet?
 
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  • #43
sophiecentaur said:
If you say you were chatting to someone using CW, the old geyser was definitely there on his key!
Definition of geyser. A hot spring in which water intermittently boils ...
Definition of guiser. A person in disguise, a mummer especially in a Christmas or Halloween play.
 
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  • #44
Baluncore said:
Definition of geyser. A hot spring in which water intermittently boils ...
Definition of guiser. A person in disguise, a mummer especially in a Christmas or Halloween play.
Perhaps in your part of the world, but “geezer “ and other versions is an old (usually) guy with bizarre looks, hobbies or behavior. Or sometimes a smooth operator etc.. used mainly in London.
 
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  • #45
dlgoff said:
Now you've got me wondering if there's a way to modulate a geyser. :devil:
Stuff a geezer in it! :wink:
 
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  • #46
Phonetic spelling "Geeezaahhh!" - to be said with feeling.
 
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