[BC] Outside source for checking Modulation Levels...

[Cowboy]

On Monday 21 July 2014 12:22:25 pm robertm wrote:
>  All you need is an Ipod to play out the Bessel null tone. It is nice to have a spectrum analyzer (I always have since the 80s) but failing that a narrow band communications receiver with good filters works as well. 

 And so will that same scope connected to that discriminator properly,
 and sync'd to the modulating tone.
 A bit esoteric, but it will work.
 ( the spec an is easiest )

-- 
Cowboy