[BC] Frequency Measurements and 1000 Hz tone...

[Jim Tonne]

Glen:

> is the exact frequency of the modulation of no import?

Not important; take the average of the two sidebands.
989 for lower sideband and 991 for upper and it
would be easy to "compute" the carrier frequency.

Also, Richard's comment earlier (coupla days ago or so)
about using the transfer oscillator is right on.  When
doing that you can hear the zero beat easily when
a tone is used to modulate the rig.  More difficult under
program conditions but doable.

- JimT



----- Original Message ----- 
From: "Glen Kippel" <glen.kippel at gmail.com>
To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
Sent: Wednesday, March 21, 2007 1:50 PM
Subject: Re: [BC] Frequency Measurements and 1000 Hz tone...


>I assume that the 1000-Hz tone does not have to be exactly 1000 Hz due to
> the fact that a cart may not be running at the correct speed.  Also, if a
> tone generator is being fed directly to air, wouldn't it would be 
> necessary
> to use a frequency counter ensure that it is indeed running at exactly 
> 1000
> Hz -- or is the exact frequency of the modulation of no import?
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