[ARC5] OT? bc-348 bfo question

[Fernando - LU2DFM]

On Mon, Sep 16, 2013 at 02:57:57AM +0000, Fuqua, Bill L wrote:
>  Sorry, 
> I should have said.
>   That will work for CW just fine since distortion is not an issue.
> It should be more for SSB. Just depends how much of the muffled
> AM detected SSB you are willing to tolerate.

>   Also, the point of having maximum AF gain and adjusting MVC, the manual IF/RF gain control is to
> make sure that the signal voltage  is much less than BFO voltage at the diode detector.

I think that's accomplished by the CW switch: turning the BFO on also
drops the screen voltage of the RF amp, 1st and 2nd IF amps from
some 85 v to 40 v. There's a huge reduction in IF signal level when the
CW switch is moved to "on". 

Anyway, you are right: BFO voltage has to be much greater then signal
voltage.

-- 
73 de Fer, LU2DFM