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What's The Difference? [message #76573] Tue, 30 April 2013 19:56 Go to next message
Azuri is currently offline  Azuri
Messages: 315
Registered: November 2012
Grand Master
Can anyone explain, exactly, what the difference is between FM radio and AM radio? I know AM signals are not quite as strong as FM signals, but I don't really know why.

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Re: What's The Difference? [message #76578 is a reply to message #76573] Wed, 01 May 2013 06:39 Go to previous messageGo to next message
Chicken is currently offline  Chicken
Messages: 300
Registered: August 2011
Grand Master
The signal is modulated (or altered) differently. FM is frequency modulation, while AM is amplitude modulation. FM is less affected by weather and can be broadcast in stereo, while weather disrupts AM quite easily and it's in mono. AM can be heard at a greater range, though, if the signal refracts off the atmosphere.

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Re: What's The Difference? [message #76737 is a reply to message #76573] Tue, 14 May 2013 10:42 Go to previous message
Nymeria is currently offline  Nymeria
Messages: 508
Registered: April 2011
Illuminati (1st Degree)
I have always wondered why talk radio tends to be on AM while music is on FM. The mono limitation of AM explains that though.

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