[AMRadio] Lowest level modulation


Brian Carling bcarling at cfl.rr.com
Thu Dec 23 05:55:06 EST 2004


How much FM would make an SBE "illegal?"

I didn't know there was a specific livel at which the signal 
becomes illegal. A lot of silly OOs assume that a chirping 
CW signal  or one with a little buzz, yoop or drift to it is 
illegal. I don't think it's illegal to chirp or FM just a little!
Gives  a signal "character", like a Southlake Swing on 
a bug key (or whatever they used to call that.)
but I digress...

Merry holidays to all - de AF4K

On 22 Dec 2004 at 22:52, Mike Sawyer wrote:

> My RCA ET-4336F is a SBE. Due to the fact it uses single source B+. Its 
> legit though because I am not intentionally modulating the oscillator. The
> PM/FM is being generated due to poor voltage regulation. The rig uses a 
> Thyrite resistor with taps for the bias voltages. It is pretty simple but
> not very effective.
> Mike(y)
> W3SLK





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