[ARC5] Why BFO's

[WA5CAB--- via ARC5]

The BC-624 is crystal controlled.

In a message dated 06/02/2014 12:21:04 PM Central Daylight Time, 
releazer at earthlink.net writes: 
> I believe that the SC-608/628 receivers like the BC-683 had a BFO.  Given 
> that they are FM, that makes little sense.  But it seems that the BFO 
> (called an IF oscillator) was used during the tuning process for preset 
> channels, and to aid in alignment.
> 
> So perhaps that was the reason for it's use in the BC-639. Or maybe for 
> zero beating with the transmitter?  The very similar BC-624 does not seem to 
> have a BFO.
> 
> Wayne   

Robert Downs - Houston
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