Quote:
Originally Posted by Clark2
Don't the HD sidebands actually overlap the bandwidth of an adjacent channel? Is it possible to overcome that even with a narrow IF? -- Clark2
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Yes, there is overlap into the first adjacent. The extent to which narrow IF filters will help that hinges on a lot of variables - that's the nature of FM reception. But consider that while the first adjacent channel is just 200 kHz away, the FCC typically spaces stations in any market by 400 kHz. To be fair, with today's crowded FM band (in the US), that doesn't always quite work in practice.