[Elecraft] KX3 VFO tuning noise...an observation...

zendoc at netspace.net.au zendoc at netspace.net.au
Tue Dec 18 20:20:57 EST 2012



	 
Hi Wayne and group,

	Thanks for replies and suggestions.  Sorry, I forgot to mention: 
the VFO NR menu item does reduce the amplitude of the artefact, but
doesn't eliminate it.  The RX SHIFT to 8.0 is effective too, but with
that selected, I give up the dual rx feature.

	I'm not complaining about this, just offering an observation.  It
really is a matter of auditory cosmesis and I've been spoilt because
my K3 and K2 and K1 have not the slightest VFO noise.

	Cheers,

	John

	VK7JB

 
----- Original Message -----
From: "Wayne Burdick" 
To:
Cc:"Elecraft Group" 
Sent:Tue, 18 Dec 2012 15:11:54 -0800
Subject:Re: [Elecraft] KX3 VFO tuning noise...an observation...

 John,

 Did you try setting RX SHFT to 8.0 on affected bands?

 Wayne
 N6KR

 On Dec 18, 2012, at 3:05 PM, zendoc at netspace.netau wrote:

 >
 >
 > Hi Group,
 >
 > FWIW, I have an observation about the KX3 VFO tuning noise.
 >
 > 
 >
 > I assembled my #2511 (absent any options) from the kit. Over
 > a month of use, I noticed the raspy VFO tuning noise only on 10m,
in
 > quiet band conditions. I couldn't hear it anywhere else.
 >
 > I later received the internal ATU, battery charger and the filter
 > module options and installed these all together in one session.
 >
 > 
 >
 > After adding these modules, I have noticable tuning noise on all
 > bands 17m and above. It is reduced but not eliminated by the VFO NR
 > menu setting.
 >
 > On 20m, I can hear the artefact, but it is less noticable and has a
 > different quality: softer and more like a pulsing shift in
amplitude
 > of the background band noise as the VFO is turned.
 >
 > 
 >
 > None of this stops me enjoying my KX3, but for some reason, the
 > artefact became noticable on my KX3 only after installation of my
 > options.
 >
 > This is a "cosmetic" issue, without any functional impairment, but
 > it's un-attractive and I'm hoping a fix might be found some day.
 >
 > 
 >
 > 73,
 >
 > John
 >
 > VK7JB
 >
 > 
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