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Old 02-08-2010, 6:07 PM
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Arrow What does "FMN' stand for?

Hello gents. Just wanted to know what "FMN" signified in some mode listings in the database. Would
appreciate any info.
Thanks,
RUSHFAN
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Old 02-08-2010, 6:10 PM
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FM Narrowband

See here: http://wiki.radioreference.com/index.php/FM
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Old 02-08-2010, 6:10 PM
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Quote:
Originally Posted by RUSHFAN View Post
Hello gents. Just wanted to know what "FMN" signified in some mode listings in the database. Would
appreciate any info.
Thanks,
RUSHFAN
FM Narrow / narrowband FM. Typically, FM would be 20 khz or thereabout, and NFM would be 11.25 khz or less. If your scanner doesn't do narrowband FM, it's not a big deal. But if your scanner does have an NFM mode, you should use it on those frequencies that are listed as NFM.

That's in a nutshell. Someone with more knowledge of the whole requirements of agencies switching to narrowband will likely chime in with better info.

Mike
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Old 02-08-2010, 6:11 PM
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FMN=Frequency Modulation- Narrow (FM Narrow)

Read an excerpt from the WIKI: NFM - Narrowband FM (called FM on most scanners) -- is used on most current analog public safety communications and the total deviation is generally limited to 30 KHz down to about 12 KHz
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