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[email protected]

On Thu, 18 Feb 2016 01:04:50 -0500,
wrote:

On Thu, 18 Feb 2016 00:08:51 -0500, "Mr. Luddite"
wrote:

We are saying the same thing. I just left out the the 455Khz
intermediate freq for simplicity. The BFO (controlled by your tuning
dial or pushbutton) is tuned to the carrier freq however, as I recall
and not to the fixed, IF frequency. If that were the case you couldn't
select any particular broadcast frequency.

===

It's a matter of standard terminology.

The local oscilator (LO) is what allows you to select stations by
frequency. The BFO is specialized for CW and SSB reception and many
(most) radios do not have a BFO.

https://en.wikipedia.org/wiki/File:Superheterodyne_receiver_block_diagram_2.svg

https://en.wikipedia.org/wiki/Beat_frequency_oscillator

Where does the cats whisker fit in there? ;-)