[Milsurplus] RAL - RAK single signal

[Alan Fryer]

OK, Ken, thanks for the reply.  Have enjoyed the articles on your website
for many years. I stand corrected, you were talking about the RAK.

The article I was referencing is titled "Single Signal Reflexed
Regenerative Receiver" by SV3ORA. A web search brings it up.

He uses some old slide pots that have a worm gear and knob for regen
control.  Old analog TV tuner parts.

Your comments really got my notice !

Best 73,

Alan, N3BJ
































On Mon, Oct 23, 2023 at 3:40 PM Kenneth G. Gordon <kgordon2006 at frontier.com>
wrote:

> On 23 Oct 2023 at 14:35, Alan Fryer wrote:
>
> >
> > Ken's comments about "single signal" performance with the RAL reminded
> > me of an article that explained how very precise control of
> > regeneration can create that effect.  IIRC, the theory goes that one
> > sideband was just barely in the oscillating mode (maximum selectivity)
> > and the other sideband was not in oscillation, attenuating it.
> > Regeneration control is frequency sensitive, maybe this is an
> > optimization of that ? .  I'll dig up the article and reference it to
> > you all.
> >
> > Does this make any sense ?
>
> Well, yes, but I was talking about the RAK, not the RAL.
>
> I never noticed any "single signal" effect with my RAL. The RAL is HF, 300
> Kc to 23 Mc. The
> RAK is VLF, 14 Kc up to 600 Kc.
>
> With my RAK, the "other side" of zero-beat simply isn't there...at all.
>
> Ken W7EKB
>
>
>
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