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6m QRN on my K3

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W7GJ, Lance

6m QRN on my K3

Recently, I have started having a really bad wide band noise problem in one direction
on 6m. It comes and goes, but is on much of the time. In the past, the IF noise
blanker in the K3 has worked well for me, but with this noise, even WID7 setting only
knocks it down from S7 to S6. Often the "NB" on the K3 blinks too...I am not sure
what that means. The noise level becomes much less when I invoke the DSP NB, but I
don't like to use that because I am often trying to work weak signal digital modes,
and I can't have little bits and pieces of the spectrum pulled out.

Is there any way to install some custom NB algorithms into the K3, or does anybody
else have any suggestions? I have put a sample of the noise on my website here:

http://www.bigskyspaces.com/w7gj/W7GJnoise.wav

I hope to be able to track down the source with my KX3, but it is not always running
continuously.

MNI TNX and VY 73, Lance

--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K)
P.O. Box 73
Frenchtown, MT 59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Windows Messenger: [hidden email]
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME? Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!

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KD7PY

Re: 6m QRN on my K3

I hope they find a fix for it Lance, I have the same sounding noise at my QTH

Ed K7WIA

W7GJ, Lance

Re: 6m QRN on my K3

In reply to this post by W7GJ, Lance

Good luck to both of us! I spent several hours out in the car this morning trying
to track it down, but when I got home again, it was gone :-( I could have driven
right by the problem and never noticed it, if it was off at that particular time.
This is going to be a really tough one to locate!

By the way, I do have to say, my KX3 works great in the car and the NB is the best I
have ever experienced in the car! I kept turning off the car so I could listen for
noise without the engine running. The only noise source I found was at a medical
clinic four miles away in the right direction, and then the NB on the KX3 did nothing
to blank it. I thought maybe I had found the pesky source, but there certainly is
no conclusion at this stage. I will head out on the road again the next time it
acts up.

GL and VY 73, Lance

On 5/24/2013 4:39 PM, WM3M wrote:

> Lance,
> I have same thing here, but not all the time.
> Mine is much worse when it is dry, when it has not rained in awhile, so I think it
> is power line noise.
> It is worse on 6 meters. I think mine is from either a close by power line
> transformer or power lines rubbing against tree limbs.
> If you figure it out please let me know. Mine sounds just like your recording.
> Sorry to say nothing I have tried helps much, except rain.
> Good luck.. 73
> Emory WM3M
>
> -----Original Message----- From: Lance Collister, W7GJ
> Sent: Friday, May 24, 2013 10:40 AM
> To: Elecraft Mailing List
> Subject: [Elecraft] 6m QRN on my K3
>
> Recently, I have started having a really bad wide band noise problem in one direction
> on 6m. It comes and goes, but is on much of the time. In the past, the IF noise
> blanker in the K3 has worked well for me, but with this noise, even WID7 setting only
> knocks it down from S7 to S6. Often the "NB" on the K3 blinks too...I am not sure
> what that means. The noise level becomes much less when I invoke the DSP NB, but I
> don't like to use that because I am often trying to work weak signal digital modes,
> and I can't have little bits and pieces of the spectrum pulled out.
>
> Is there any way to install some custom NB algorithms into the K3, or does anybody
> else have any suggestions? I have put a sample of the noise on my website here:
>
> http://www.bigskyspaces.com/w7gj/W7GJnoise.wav
>
> I hope to be able to track down the source with my KX3, but it is not always running
> continuously.
>
> MNI TNX and VY 73, Lance
>
>

--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K)
P.O. Box 73
Frenchtown, MT 59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Windows Messenger: [hidden email]
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME? Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!

______________________________________________________________
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Bill Frantz

Re: 6m QRN on my K3

Consider trying to triangulate it. Find the bearing from two
locations and see where they cross on a map. Go to that area
when it acts up again. Lather, rinse, repeat. :-)

The bearing from most any Yagi should help.

Cheers - Bill, AE6JV

On 5/24/13 at 11:16 AM, [hidden email] (Lance Collister, W7GJ) wrote:

>Good luck to both of us! I spent several hours out in the car
>this morning trying to track it down, but when I got home
>again, it was gone :-( I could have driven right by the
>problem and never noticed it, if it was off at that particular
>time. This is going to be a really tough one to locate!

-----------------------------------------------------------------------
Bill Frantz | "The only thing we have to | Periwinkle
(408)356-8506 | fear is fear itself." - FDR | 16345
Englewood Ave
www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos,
CA 95032

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W7GJ, Lance

Re: 6m QRN on my K3

I wish it were than easy ;-) I can hear it fine and get a good bearing here at home
with 4x9 element yagis, but I can't hear the noise at all with the dipole or vertical
in the car. I just have to hope that the intermittent noise is on when I drive out
to the spots along the line where the noise is coming from.... VY 73, Lance

On 5/25/2013 12:18 AM, Bill Frantz wrote:

> Consider trying to triangulate it. Find the bearing from two locations and see
> where they cross on a map. Go to that area when it acts up again. Lather, rinse,
> repeat. :-)
>
> The bearing from most any Yagi should help.
>
> Cheers - Bill, AE6JV
>
> On 5/24/13 at 11:16 AM, [hidden email] (Lance Collister, W7GJ) wrote:
>
>> Good luck to both of us! I spent several hours out in the car this morning
>> trying to track it down, but when I got home again, it was gone :-( I could have
>> driven right by the problem and never noticed it, if it was off at that particular
>> time. This is going to be a really tough one to locate!
>
> -----------------------------------------------------------------------
> Bill Frantz | "The only thing we have to | Periwinkle
> (408)356-8506 | fear is fear itself." - FDR | 16345 Englewood Ave
> www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos, CA 95032
>
> ______________________________________________________________
> 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
>