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KX3 NR

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Richard Thorpe-2

KX3 NR

I just go a KX3 and love it. The first couple of days I played with various knobs and buttons I found that I could change the NR settings with the knob above the button. I lost that ability when I loaded the latest beta firmware. I inquired at Elecraft how I could restore the ability to change the NR settings and was told that that feature had not yet been implemented. Has anyone with a recent KX3 purchase had the same experience? Thank you.

R Thorpe K6CG
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wayne burdick

Re: KX3 NR

Administrator

NR settings have never been adjustable. But we do hope to add that
feature in a future release. For now, to adjust the NR parameters you
must use the RX NR menu entry. Search the KX3 firmware release notes
for "RX NR" for details.

You may have been changing the MONitor, AF gain, or RF gain settings.

73,
Wayne
N6KR

On Jan 21, 2013, at 3:51 PM, [hidden email] wrote:

> I just go a KX3 and love it. The first couple of days I played with
> various knobs and buttons I found that I could change the NR
> settings with the knob above the button. I lost that ability when I
> loaded the latest beta firmware. I inquired at Elecraft how I could
> restore the ability to change the NR settings and was told that that
> feature had not yet been implemented. Has anyone with a recent KX3
> purchase had the same experience? Thank you.
>
> R Thorpe K6CG
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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wayne burdick

Re: KX3 NR

Administrator

Wayne Burdick wrote:

> NR settings have never been adjustable.

What I meant was "NR settings have never been adjustable using the
knob above the switch." Of course they're adjustable in the RX NR menu
entry.

Wayne

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K3WWP

Re: KX3 NR

In reply to this post by Richard Thorpe-2

The KX3 Owner's Manual (Rev. B4, June 1, 2012) does give the (erroneous)
impression (p 13 left column) that NR settings can be changed via the NR
knob.

* John K3WWP - 100% CW / QRP - Proudly promoting Morse Code:
*
* On the air with my KX3 #2325, K2 #6418, KX-1 #02101
*
* As NAQCC VP - # 0002 FC # 1 - http://naqcc.info/
*
* As FISTS Keynote QRP Columnist - # 2002 - http://www.fists.org/
*
* With my CW-QRP site - http://home.windstream.net/johnshan/

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George

Re: KX3 NR

In reply to this post by Richard Thorpe-2

Anyone know when we might get that feature? Tnx George/W2BPI

The KX3 Owner's Manual (Rev. B4, June 1, 2012) does give the (erroneous)

impression (p 13 left column) that NR settings can be changed via the NR

knob.
* John K3WWP - 100% CW / QRP - Proudly promoting Morse Code:

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Don Wilhelm-4

Re: KX3 NR

We have that function right now. The Owner's manual is incorrect.

See the post by Wayne a bit earlier today, Actually he made 2 posts,
the second was a clarification.

73,
Don W3FPR

On 1/22/2013 8:18 PM, [hidden email] wrote:
> Anyone know when we might get that feature? Tnx George/W2BPI
>
> The KX3 Owner's Manual (Rev. B4, June 1, 2012) does give the (erroneous)
>
> impression (p 13 left column) that NR settings can be changed via the NR
>
> knob.
> * John K3WWP - 100% CW / QRP - Proudly promoting Morse Code:
>

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wayne burdick

Re: KX3 NR

Administrator

In reply to this post by K3WWP

Right you are, John. I'll issue a new errata sheet to cover the
current situation.

tnx
Wayne
N6KR

On Jan 22, 2013, at 3:44 PM, K3WWP wrote:

> The KX3 Owner's Manual (Rev. B4, June 1, 2012) does give the
> (erroneous)
> impression (p 13 left column) that NR settings can be changed via
> the NR
> knob.
>
> * John K3WWP - 100% CW / QRP - Proudly promoting Morse Code:
> *
> * On the air with my KX3 #2325, K2 #6418, KX-1 #02101
> *
> * As NAQCC VP - # 0002 FC # 1 - http://naqcc.info/
> *
> * As FISTS Keynote QRP Columnist - # 2002 - http://www.fists.org/
> *
> * With my CW-QRP site - http://home.windstream.net/johnshan/
>
>
>
>
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

George

Re: KX3 NR

In reply to this post by Richard Thorpe-2

Thanks Wayne and Don for your responses. My next question. When I go to RX
NR at the top of the screen I see anywhere from "0" to "250". Do they have
a meaning or are they there just for ref? Anyway it does a great job for
me. Thanks 72 Geo/W2BPI

_Don Wilhelm_
(http://www.mail-archive.com/search?l=elecraft@...&q=from:"Don+Wilhelm") _Tue, 22 Jan 2013 17:34:01 -0800_
(http://www.mail-archive.com/search?l=elecraft@...&q=date:20130122)

We have that function right now. The Owner's manual is incorrect.

See the post by Wayne a bit earlier today, Actually he made 2 posts, the
second was a clarification.
73,

Don W3FPR

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wayne burdick

Re: KX3 NR

Administrator

Hi Geo,

Here are the firmware notes regarding NR adjustment, which I'll also
be including in the new errata sheet.

73,
Wayne
N6KR

* * *

* NOISE REDUCTION (NR) ADDED: Receive noise reduction reduces the
amplitude of random noise while preserving desired signals. (RX NR is
different from the VFO NR menu setting, which can be used to reduce
VFO tuning noise on the higher bands.) NR works in CW, SSB, and AM
modes. NR has a characteristic “hollow” sound. To turn NR on/off, hold
the NR switch. Also see RX NR x menu entry, below. Note: NR is not
available when AGC is turned off.

* RX NR x MENU ENTRY ADDED: Allows the user to customize receive noise
reduction (NR). The letter appearing at ‘x’ in the menu entry name
shows which parameter is being adjusted: B (beta; tap ‘1’), D (decay;
tap ‘2’), or M (wet/dry mix; tap ‘3’). The defaults are recommended,
and this menu entry is locked to prevent accidental changes. The NR
settings for CW are separate from those for voice modes.

Using the RX NR menu entry: Unlock the parameter by holding KHZ for
about 3 seconds; the VFO A lock icon will disappear. Then tap ‘1’,
‘2’, or ‘3’ to select a parameter to change. You can turn NR on/off
while in the menu to test its effectiveness.
The default beta is 5 for CW and 10 for voice modes. A lower beta will
further reduce noise, but may attenuate weak signals. The default
decay is 240. A much lower decay value will allow NR to track fading
signals better, at the expense of somewhat worse noise rejection. The
mix value determines how much of the signal is “dry” (unprocessed) vs.
“wet” (processed). The default is 220 in CW mode and 250 in voice modes
—essentially “all wet”. You might want to use a lower mix number to
reduce the “hollow” sound or to minimize the effect of NR on weak
signals.

* * *

On Jan 23, 2013, at 8:55 AM, [hidden email] wrote:

> Thanks Wayne and Don for your responses. My next question. When I
> go to RX
> NR at the top of the screen I see anywhere from "0" to "250". Do
> they have
> a meaning or are they there just for ref? Anyway it does a great
> job for
> me. Thanks 72 Geo/W2BPI
>
> _Don Wilhelm_
> (http://www.mail-archive.com/search?
> l=[hidden email]&q=from:"Don+Wilhelm") _Tue, 22 Jan 2013
> 17:34:01 -0800_
> (http://www.mail-archive.com/search?l=elecraft@...&q=date:20130122
> )
>
> We have that function right now. The Owner's manual is incorrect.
>
> See the post by Wayne a bit earlier today, Actually he made 2
> posts, the
> second was a clarification.
> 73,
>
> Don W3FPR
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html