[BC] Outside source for checking Modulation Levels

[Cowboy]

On Sunday 20 July 2014 02:18:11 pm Henry Ruhwiedel a9xw at cs.com.INVALID wrote:
>  FM you need a spectrum analyzer and a simple Bessel null will do it, and most modern demods have that built in.

 Or, a cheap scope, and older discriminator FM radio, and a way to calibrate.

 Of course, this method will not ignore the legal over-mod.
 ( those pesky overmod peaks that we now ignore thanks to
 Eric Small and that whole "which peaks" thing some years ago,
 essentially obsoleteing real physics in favor of complicated
 proprietary loudness maximization )

-- 
Cowboy