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Old 9th Oct 2019, 5:50 am   #21
Radio Wrangler
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Location: Fife, Scotland, UK.
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Default Re: Modifying discriminator coil for narrow band FM.

Quote:
Originally Posted by Synchrodyne View Post
My recollection is that the sound volume when tuned to the local NOAA station was not hugely lower than it was for FM broadcasts, which at the time surprised me, given the big difference in maximum deviation.
Back in the day, the FM broadcasts would have been made with some actual dynamic range in their content, while the speech on the weather channel would have been compressed to rather low dynamic range. So your eyes and brain see the specified peak deviations on paper, but your ears hear the difference in the average deviations.

David
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