I’ve noticed a similar issue when engaging and disengaging the APF filter. I
have to go back and turn off and on the NR before it kicks in again.
Dan Presley 503-701-3871
danpresley@me. com
n7...@arrl.net
> On Oct 16, 2021, at 14:53, Julia Tuttle wrote:
>
> Hi,
>
> I have NR turned on
Hi,
I have NR turned on on my KX3. When I do an ATU TUNE, "NR" stays on the
display, but the noise reduction isn't actually happening. If I turn NR off
and on again, it works again.
Known bug?
73,
Julie
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Thanks Julie. It's a bit my fault. I've choosed a new thread
since it's a new question. So I should have mentioned the K4
again. I think my question/observation should be clear now.
On 09.09.2021 22:56, Julia Tuttle wrote:
Mike's message was a tongue in cheek response to (part of) Ludwig's
;
> Mike / KK5F
> -Original Message-
> From: Andy Durbin
> Sent: Sep 9, 2021 8:08 AM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] NR after changing bands
>
> "Am I crazy or is this real?"
>
> Are the
: Andy Durbin
Sent: Sep 9, 2021 8:08 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] NR after changing bands
"Am I crazy or is this real?"
Are these conditions mutually exclusive?
73,
Andy, k3wyc
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"Am I crazy or is this real?"
Are these conditions mutually exclusive?
73,
Andy, k3wyc
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Hi again (and thanks for the "R"/"DR" explanation).
Here is an observation with the noice reduction NR.
The bands are quite noisy here. So I use NR ADJUST
set to 4 or 5.
- When I last used the 40m band, mode was LSB,
bandwidth was 2.8 kHz, and NR was ON.
- Switch from some other band back to
Vic,
The NR algorithm always works better with a wider bandwidth. It is simply
building a not-too-narrow filter around what it perceives to be the signal.
Glad you found it helpful!
73,
Lyle KK7P
Sent from my iPhone
> On Feb 22, 2020, at 10:38 PM, Vic Rosenthal wrote:
>
> I’ve never
I’ve never found the K3 NR very useful. But this morning, I was trying to hear
VP8PJ on CW through a humongous wideband radar (or something) signal that was
running over S9. The IF NB didn’t do anything against it, and the DSP NB just
helped a little. I found that opening up the bandwidth to
I don't understand this statement?
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
The owners manual and the quick guide are incorrect but do we have that
When the new firmware 4.51 came out there were some postings commenting on
the improvement in the NR. However, I didn't really pay attention. The
previous versions of NR had proven to be of little use with the particular
kind of noises that plague my QTH, so I hadn't even turned on NR for
months.
When working split I would like the NR setting to be applied to both the A vfo
and the B vfo.
I tap A B once to copy VFO A'S frequency to VFO B.
Then I tap A B again and it copies VFO A's filter settings, preamp state, etc
just as it
says in the manual. The NR setting however is not
You have to set the subRX NR and NB after using the bSET hold button. To
NOT have this separation of would be a problem on 160 listening to TX
antenna on main and a RX antenna on subrx in diversity mode.
73, Guy
On Fri, Jan 27, 2012 at 12:04 PM, Bob K6UJ k...@pacbell.net wrote:
When working
OK that makes sense Guy, I'll try it again tonite and see how it goes.
thanks,
Bob
K6UJ
On Jan 27, 2012, at 1:06 PM, Guy Olinger K2AV wrote:
You have to set the subRX NR and NB after using the bSET hold button. To NOT
have this separation of would be a problem on 160 listening to TX
Hi,
NR or no NR, this is going to be one tough nut to crack. I listened for him
for the first time this morning and did not hear a peep. This wasn't with my
K3 but remotely from work using my humble IC718 online radio, but there was
no QRM and the 718 is plenty sensitive so the G5RV antenna
9N7MD was strong for a long time last evening in the US Midwest on 20M RTTY,
14083.6. The pileup was big, but my K3 subreceiver, P3, and a second
instance of MMTTY on the subreceiver did the job for a new one on RTTY. No
NR required!
I will admit I don't have a KPA500 but I do have an amplifier
9N7MD also had a great signal two days ago on 30M at 2200Z. The pileup
was pretty big but the operator was excellent. They were working ~50%
EU and 40% NA with some JA's in the mix as well.
On 11/17/2011 11:47 AM, Jim McDonald wrote:
9N7MD was strong for a long time last evening in the US
Yesterday morning was my first real rigorous test for the NR and all its
capability. If not for it, I would never had understood my call if they
returned to me. Fortunately, since they were going thru the US by the
numbers, I had time to fiddle with the various NR levels. Previous to today,
the
...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W5RDW
Sent: 16 November 2011 16:36
To: elecraft@mailman.qth.net
Subject: [Elecraft] NR Use in contacting 9N7MD
Yesterday morning was my first real rigorous test for the NR and all its
capability. If not for it, I would never
It was using SSB on 17M. Although I operate mostly SSB, my few CW contacts
are to work a DXpedition, where I can usually hear the station with little
or no interference and the NR is not needed.
Roger W5RDW
Roger,
You do not say whether you were operating SSB or CW when you made use of
the
I too would like to have a better way to adjust the NR settings. When
searching for a good NR setting in live band conditions that cry out for some
DSP filtering, I find it very difficult to decide which settng is best.
I really don't know what to suggest, but if the settings adjustment
I had suggested that the VFO-A knob might be put to use while NR ADJ
was selected. It could step through the NR settings in the following
sequence:
1-1, 2-1, 3-1, etc.
This would neatly complement the action of the VFO-B knob which has
this sequence:
1-1, 1-2, 1-3, etc.
As it is now the
Anyone have any idea why the NR (button 8) would suddenly stop working
in SSB? I get a N/A message. I don't know if I set something wrong?
It works fine in CW.
Ideas?
John
K2QY
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Is AGC off?
Grant/NQ5T
On Jan 8, 2011, at 2:15 PM, John Fritze wrote:
Anyone have any idea why the NR (button 8) would suddenly stop working
in SSB? I get a N/A message. I don't know if I set something wrong?
It works fine in CW.
Ideas?
John
K2QY
Whoa, that's weird. It just started working again. Must be gremlins ;-)
John
K2QY
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Post:
Well we are now over the 7000 mark..
Thanks Ron, for the comments about the IC's.
My next problem is a couple of missing parts, but thats easy to sort out.
The Instructions are very good and the support from Elecraft on Service and
sales makes me purchase Elecraft, next is a P3
to go with my
Should have mentioned that I was unable to set Sub NR after loading beta
3.76 complete with new DSP FW.
Sub works great otherwise.
jim ab3cv
On Mon, Jan 25, 2010 at 11:07 PM, Jim Miller j...@jtmiller.com wrote:
I've activated Bset but when I hold the NR button I don't get a Fx-x
indication
Jim,
In that case it should work. Is there any chance you are in either DATA
or FM mode? Noise Reduction is N/A for those modes.
I don't have the sub here to try it, so perhaps someone who has the sub
can try it on their K3 with 3.76 beta firmware.
73,
Don W3FPR
Jim Miller wrote:
Should
It works. You have to be sure you have the Sub Rx turned ON when you
attempt to turn NR on or off using b-set
73,
Ken K3IU
K3 #202
On 1/26/2010 8:58 AM, Don Wilhelm wrote:
Jim,
In that case it should work. Is there any chance you are in either DATA
or FM mode?
on my K3 with FW 3.76 loaded I can set NR settings with BSET for the
subreceiver, but it is then changed also for the main receiver. I can use
NR on the main or sub or for both, but with the same NR settings for the
same mode.
73! de Werner OE9FWV
Don Wilhelm schrieb am 26 Jan 2010 um 8:58:
With Sub Rx ON, I can toggle NR ON/OFF in Sub Rx using bset. This does
not affect the ON/OFF status of the Main Rx. However, when I change the
NR setting (press/hold NR) of the SubRx, that changes both the SubRx and
Main Rx setting... just as Werner reports below.
73,
Ken K3IU
NR settings are per-mode, but they'll be the same for a given mode on
each receiver. I.e., you can't (at present) have different NR settings
for CW on main vs. CW on sub.
NR on/off is per-band/per-receiver.
This will be clarified in the next K3 manual (and before that, in the
errata).
73,
Operator error: didn't have the Sub turned on when doing the Bset.
Working now.
tnx
jim ab3cv
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Post:
I've activated Bset but when I hold the NR button I don't get a Fx-x
indication for setting the Sub NR.
Didn't see anything in the manual or scanning throught the Config settings.
How is this done?
tnx
jim ab3cv (sub newbie)
__
Jim,
Contrary to what the manual says, the state of NR is the same for both
the Main RX and the SUB.
Wayne has indicated that the manual is not correct in this particular
aspect and will be corrected in the next manual revision.
73,
Don W3FPR.
Jim Miller wrote:
I've activated Bset but when I
To: Jim Miller
Cc: Elecraft Reflector
Subject: Re: [Elecraft] NR adjust on sub?
Jim,
Contrary to what the manual says, the state of NR is the same
for both
the Main RX and the SUB.
Wayne has indicated that the manual is not correct in this particular
aspect and will be corrected
Hello friends:
My k3 is only 2 hours old.
A little question:
When i press NR y can read N/A on the screen.
The same with NTCH.
Why can't i use it?
Thank's a lot.
--
Rubén Navarro Huedo - EA5BZ
http://www.palotes.com
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Elecraft mailing
Ok, i have my answer:
Becouse agc was off.
Thank's
El 19/01/2010 21:09, Ruben Navarro Huedo escribió:
Hello friends:
My k3 is only 2 hours old.
A little question:
When i press NR y can read N/A on the screen.
The same with NTCH.
Why can't i use it?
Thank's a lot.
--
Rubén Navarro
We're going to make NR per-mode in the next firmware release, too.
This should eliminate the need to hunt for the ideal setting each time
you change modes.
73,
Wayne
N6KR
On Dec 29, 2009, at 5:17 PM, Chuck Guenther wrote:
I've been pleasantly surprised at how well NR works even with
very
wrote:
From: Wayne Burdick n...@elecraft.com
Subject: Re: [Elecraft] NR Revisited (trying again in plain text mode)
To: Chuck Guenther charles9...@att.net
Cc: elecraft@mailman.qth.net
Date: Wednesday, December 30, 2009, 5:54 PM
We're going to make NR per-mode in the next firmware release, too
Dear Wayne,
Its great !
Many thanks for your efforts.
Bst 73's
Philippe A65BI
K3#3616
Wayne Burdick n...@elecraft.com 30-12-2009 21:54
We're going to make NR per-mode in the next firmware release, too.
This should eliminate the need to hunt for the ideal setting each time
you change modes.
Over the past two months I've been enjoying weak signal low band DXing on good
antennas with my K3 using roofing filters for CW (500Hz) and SSB (2.1 KHz) . My
K3 has the latest DSP board and the firmware is up to date with the
thirty-two(?) NR choices. What I'm finding is that the NR Firmware
The DSP is behind the roofing filters. I set my 400 Hz filter to cut
in at 450 Hz width. If I set width to 500, the K3 uses the 1.8 kHz
roofing filter. The information diversity of the noise vs CW signal
as a ratio is much larger there and the algorithm seems to take
advantage of that. To my
Hi John,
Exactly so. Lyle Johnson explained how NR works in the K3 a while ago
and he said exactly what you've observed: NR works best with wider
bandwidths. You can see his explanation at
http://www.zerobeat.net/mediawiki/index.php/K3_DSP
73
--
Joe KB8AP
On Dec 29, 2009, at 9:53 AM,
I've been pleasantly surprised at how well NR works even with
very narrow CW bandwidths. I routinely use a 250 Hz roofing filter
followed by 250, 200, or 150 Hz DSP filters for Top Band. The NR
set around F1-2 or F1-3 quite often makes a difference for me.
It wasn't always this way.
Thanks to
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Hello,
I also get the tone when using the NR.
Same configuration described using the PF2 button to switch between speaker
and headphones.
The tone does go away by hitting any other button (NB, PRE, XFIL, etc.)
Beta 3.41
K3 #3177
73, Dave - W9RIT
Jim Chick-2 wrote:
Hi Steve
In my
Working on it
Wayne
N6KR
On Oct 12, 2009, at 12:38 PM, w9rit wrote:
Hello,
I also get the tone when using the NR.
Same configuration described using the PF2 button to switch between
speaker
and headphones.
The tone does go away by hitting any other button (NB, PRE, XFIL,
etc.)
Hi Steve
In my previous e-mail I suggested it was the NB! not so it was in fact NR
and the symtoms are exactly as you describe, reverting to the prevous beta
release solves the problem. I am interested to know if we are the only
people experiencing this or is it a general problem?
Jim G4NWJ
I'll start looking into this again on Monday.
73,
Wayne
N6KR
http://www.elecraft.com
On Oct 10, 2009, at 6:21 PM, Jim Chick jimchic...@yahoo.co.uk wrote:
Hi Steve
In my previous e-mail I suggested it was the NB! not so it was in
fact NR
and the symtoms are exactly as you describe,
Jim:
I can get rid of the tone upon turning on NR if I do any of the following:
revert to v3.30
turn off switch tones
use my FL2 filter (500 Hz) rather than my FL1 filter (2.7 kHz)
and, of course, turning off NR
Wayne had me try an EE init, which got rid of the tone, but it returned
after a
Here's another bug that now occurs with v 3.41 and I didn't notice this
before updating.
I assigned the programmable function button PF1 to switch the
configuration menu item SPKR+PH, now if I have NR on and I try to
switch the external speaker on and off by holding the PF1 button I get
a tone
@mailman.qth.net; Elecraft support supp...@elecraft.com
Sent: Friday, October 09, 2009 10:58 PM
Subject: [Elecraft] NR and PF1 key noise
Here's another bug that now occurs with v 3.41 and I didn't notice this
before updating.
I assigned the programmable function button PF1 to switch the
configuration
I have mine set up exactly the same way and I can't reproduce your problem in
any mode or at any setting of NR. F/W 3.41, s/n 1417.
Rob
Date: Fri, 9 Oct 2009 22:58:05 -0400
From: mc...@gmavt.net
To: elecraft@mailman.qth.net; supp...@elecraft.com
Subject: [Elecraft] NR and PF1 key noise
every case, SSB was harder to understand (muffled) with the NR on and in
spite of the noise, much easier to understand with NR off. CW sounded great
with NR on. My opinion.
Steve
N4LQ
~~
of my K3 receiver with all the settings I do use,also you will find a
word with the explanation of all
or just use this link...
http://tinyurl.com/krwobp
--
Hofstadter's Law: The time and effort required to complete a project are
always more than you expect, even when you take into account
Hofstadter's
Law.
On 29 Aug 2009, at 15:52, Hector Padron wrote:
If you guys are interested to see how
Matt Zilmer wrote:
Does anyone have more input on MP3 vs WAV?
MP3 has a certain amount in common with noise reduction algorithms,
although what is is trying to reduce is weak sounds so close to the
signal that they won't be heard. With very good noise reduction it may
completely blank noise
David,
Thanks for your input on this. I understood pretty much correctly,
but appreciate your more complete explanation.
By WAV, yes, I meant linear-coded whatever resolution. I think
windoze Sound Recorder records files in this format. They're huge...
As a function of my group's charter (at
Loaded 3.27. NR works on SSB but N/A on CW?
Was OK with 3.25.
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Be sure AGC is turned on.
Steve
N4LQ
n...@carolina.rr.com
- Original Message -
From: mark roz anegadas...@yahoo.com
To: elecraft@mailman.qth.net
Sent: Sunday, August 30, 2009 9:42 PM
Subject: [Elecraft] NR
Loaded 3.27. NR works on SSB but N/A on CW?
Was OK with 3.25
If you guys are interested to see how
I have set my K3 serial 2192 for best performance of the newest FW 3.27
this is what you will have to do:
1-type www.ad4c.com
2-Once you have it opened click on the right green botton named Downloads
3-Once you are in the new page,click again on Downloads- 99
- Original Message -
From: Hector Padron ad4c2...@yahoo.com
To: elecraft@mailman.qth.net
Sent: Saturday, August 29, 2009 10:52 AM
Subject: [Elecraft] NR settings at AD4C K3 now available at my website
If you guys are interested to see how
I have set my K3 serial 2192 for best performance of the newest
easier to understand with NR
off. CW sounded great with NR on. My opinion.
Steve
N4LQ
n...@carolina.rr.com
- Original Message -
From: Hector Padron ad4c2...@yahoo.com
To: elecraft@mailman.qth.net
Sent: Saturday, August 29, 2009 10:52 AM
Subject: [Elecraft] NR settings at AD4C K3 now
on. My opinion.
Steve
N4LQ
n...@carolina.rr.com
- Original Message -
From: Hector Padron ad4c2...@yahoo.com
To: elecraft@mailman.qth.net
Sent: Saturday, August 29, 2009 10:52 AM
Subject: [Elecraft] NR settings at AD4C K3 now available at my website
If you guys are interested to see
: [Elecraft] NR for Dummys
To: Elecraft Reflector elecraft@mailman.qth.net
Date: Friday, August 28, 2009, 5:29 AM
Where can I buy the book?
Let's start with SSB on 3.27 (for me at this time). Will somebody send me the
non-factory settings you have changed and what you have them set to that give
Hector
I think a lot of folks would be interested in your findings and those of
others, so, you would do us all a favour if you could put those answers and
clips in a place we can all view: perhaps the Elecraft site?
David
G3UNA
Gary,Jim and Robin,I am pretty satisfied with 3.27 NR and I
I'm still playing with the 3.27 NR, but I like it alot. I operate CW
only and have been using the F1-x filter section mostly because it
seems that F2 through F4 are minor variations on the F1 theme, so to
speak; but I will try them later. With CW signals of course there is
not as much subtlety
I find this to be a great improvement on SSB for weaker ones buried in the
noise.
With NR turned on to the F1-1 setting I could pull out the weak JAs and VK/ZLs
this morning on 40 SSB. It truly works well without to much of the hollow in
the tunnel reception. Turning up the NR settings
Where can I buy the book?
Let's start with SSB on 3.27 (for me at this time). Will somebody send me the
non-factory settings you have changed and what you have them set to that give
you the what you see as the best setting (at any particular instant). I know
this will change by conditions,
The NR has been greatly improved in the latest FW V3.25! I can
actually USE this feature now. Thanks Lyle, your work is greatly
appreciated! 73's de W4EFZ
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I have a constant S5 to S7 noise floor here at my QTH.. It's both QRN and QRM.
This is especially true when the conditions change so that the DX is present. I
find that when I use NR 3-5 with Med5 I reduce the QRN by at least 2 S units.
I've never had an NR that actually reduced random band
Elecrafters, Very interesting the varied experiences with the K3 NR. All I
can say is that in the past season (Sept.-March) I have worked 192 countries on
80m. This is a good testament to the NR effectiveness on qrn/qrm/etc. I very
seldom use the K3 with the NR off. On the other hand, the
The post from BA4RF etc about the NR causing the audio to blast,
I mentioned I do not work SSB but tried went to SSB and confirmed
the increase in audio,
well its on all modes as far as I can tell, to be more truthfull I do
not use
NR as I find it to non effective to CW work at least the for
I can almost guarantee this is going to be another one of those, My radio
doesn't act like that threads.
The reason being, this phenomenon is level sensitive. With a weak signal the
noise reduction lowers the signal strength but above a certain level, it
increases the signal dramatically.
Hi Wes,
are you talking about situation when RX EQ is FLAT?
Did you tra some EQ settings and what is as result?
Thanks,
73!
Lexa, OK1DST
Wes Stewart napsal(a):
I can almost guarantee this is going to be another one of those, My radio
doesn't act like that threads.
The reason being, this
Before, activating NR reduced the signal strength and sometimes drastically. A
few of us asked to put NR and NTCH inside the AGC loop to keep teh signal
strength even. It seems as if the firmware upgrade just increased gain with NR
but NTCH is definitely not inside the AGC loop yet.
Ignacy
hello all,
Anyone try this: listening a S7 to S9 signal (SSB) on any band with
your headphone, at this time, try to
enable NR, you will hear a really LOUD audio!
Maybe need firmware upgrade to fix it.
73s David BA4RF
__
I can confirm this. I've heard it on strong SSB signals and it's easy
to demonstrate with the XG2 signal generator set to the 50uV level.
The more aggressive the NR setting, the louder the strong signals
become. Using the XG2 and the K3's built in AFV meter, NR F1-1 gives
a 3.1 dB boost
Confirm this one also, I dont operate SSB but tuned in a couple
stations to
try it out and it will blow your ears off when you hit the NR button.
Did not reload older software to see where it took place but its new on the
last release or so.
Merv KH7C
I can confirm this. I've heard it on
Good morning,
Need a little help setting up the NR. When I use it cuts out the white
noise but the voice is muffled. Sounds like it is being over driven and
kinda fades in and out.Signal sounds better with it off. Tried all the
setting (F1 thru F4).
Don...w2xb
--
View this message in context:
: Monday, September 01, 2008 8:38 AM
Subject: [Elecraft] NR
Good morning,
Need a little help setting up the NR. When I use it cuts out the white
noise but the voice is muffled. Sounds like it is being over driven and
kinda fades in and out.Signal sounds better with it off. Tried all the
setting (F1
W2XB wrote:
Good morning,
Need a little help setting up the NR. When I use it cuts out the white
noise but the voice is muffled. Sounds like it is being over driven and
kinda fades in and out.Signal sounds better with it off. Tried all the
setting (F1 thru F4).
Don...w2xb
Problem
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