[Elecraft] Re: zero beat detector with KX1?

[Pete Ames]

Greetings, Wayne and Eric -

I consider myself privileged to be one of first, if not the first, Ham to
build Tom Hammond's SMD PC Board CW Tuning Indicator kit for my KX1, using
the KX1 Lamp to perform double duty as both a light and a tuning lock
indicator as well (no holes to drill in the KX1 enclosure!!).  Tom's SMD PC
board design for the K6XX CW Tuning Indicator is truly a clever and
tremendously useful modification for the K2, and most recently for the KX1
as well.  The SMD board can be installed easily without having to remove
the ATU or the KX1 PC boards.

Tom provided timely guidance to me for my KX1 project most recently with
fast response to my questions and perfect suggestions for solutions to
problems, some of which I didn't even know I had.   Tom's SMD board
*floats* very nicely beneath U1 on the bottom of the ATU board, in its
protective electrical tape wrapping.     Alignment is a very simple
procedure because the CW Tuning Indicator *hears* your KX1 sidetone when in
the STP menu mode; one simply adjust the trimpot to a position in the
center of travel of the pot for the steady light state.  When the Light is
in the CW Tuning Indicator  mode, one may use the steady light by turning
on the Lamp which overrides the Tuning Indicator.  BTW, one does NOT have
to look directly into the Lamp during the alignment or signal lock
procedures to observe when the light is flickering and when it is steady
(see *LED Tests,* Item 1., on Page 28 of the KX1 Owner's Manual, that
advises one not ).

Wayne, thanks again for the KX1!

Regards es 73,

Pete
NU6Q





> [Original Message]
> From: wayne burdick <n6kr at elecraft.com>
> To: Eric Ward <eric.ward at verizon.net>
> Cc: Elecraft Reflector <elecraft at mailman.qth.net>
> Date: 12/1/2004 11:49:51 AM
> Subject: [Elecraft] Re: zero beat detector with KX1?
>
> >
> Eric Ward wrote:
>
> > ....I have been interested in building some version of a visual zero
> > beat detector that uses a PLL tone-decoder IC for use with the KX1.  I 
> > have
> > read about the K2 guys using N0SS's PC board version of the circuit 
> > designed
> > by KR5L.  Has anyone tried it (or the Jackson Harbor Press kit, or any 
> > such
> > similar) with the KX1?  Is the side tone too fuzzy/harmonically rich 
> > to make
> > it work?
>
>
> Hi Eric,
>
> Tom Hammond has put the tone detector in a KX1, I believe. But I think 
> he's off-line for a few days, since he's visiting here in California.
>
> On another topic, you wrote:
>
> > I was interested in WA5ZNU's recent post about tri-state and side tone
> > levels on the KX1.  Can't claim to understand it completely-I am a 
> > lowly
> > biologist.
>
> It must be frustrating to be a biologist these days, watching species 
> disappear, oceans warm, ice caps melt, habitat destroyed, and very 
> little being done about it by the world's largest polluters. At least 
> it's frustrating for me!
>
> Of course any discussion of this topic should be OFF the reflector  :)
>
> 73,
> Wayne
> N6KR
>
> ---
>
> http://www.elecraft.com
>
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