K2 80m Scratch RX audio

[TJ Campie]

Hey guys, I'm having a problem with my K2 and scratchy RX on receive audio.  The problem exists with or without headphones and at any volume.  I tried turning off AGC and it still was there and its on all strengths of signals (I have limited access to anything stronger than S3 or so due to antenna situation)  I am using a 66' doublet in the attic fed with 300 ohm twinlead through the Elecraft 4:1 balun into the KAT2.  I haven't noticed the noise on other bands, just 80m.  Any ideas as to what may be causing this noise?  I'll try to get a recording of it soon.  Stay posted.

TJ
W0EA
______________________________________________________________
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

[Don Wilhelm-4]

TJ,

Since it is only present on 80 meters, I suspect it is not really coming
from the K2 (But I could be proven wrong).
Try listening when the K2 is connected to a dummy load.  If the
"scratchiness" is still present, blame it on the K2 (and we can help
track it down).  But if it is only present when the antenna is
connected, you will have to figure out which of your neighbors (or your
own household) is creating the RF interference.

73,
Don W3FPR

Tom Campie wrote:
> Hey guys, I'm having a problem with my K2 and scratchy RX on receive audio.  The problem exists with or without headphones and at any volume.  I tried turning off AGC and it still was there and its on all strengths of signals (I have limited access to anything stronger than S3 or so due to antenna situation)  I am using a 66' doublet in the attic fed with 300 ohm twinlead through the Elecraft 4:1 balun into the KAT2.  I haven't noticed the noise on other bands, just 80m.  Any ideas as to what may be causing this noise?  I'll try to get a recording of it soon.  Stay posted.
>
> TJ
> W0EA
>  
>
______________________________________________________________
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

[DaveVK]

Hi Tom,

I sometimes get that on 40mx with my NB on in the presence of strong broadcast stations.  If I turn the NB off all is well again.

I know this may not necessarily help your situation.  Is your distortion all the time?

Dave

Tom Campie wrote

Hey guys, I'm having a problem with my K2 and scratchy RX on receive audio.  The problem exists with or without headphones and at any volume.  I tried turning off AGC and it still was there and its on all strengths of signals (I have limited access to anything stronger than S3 or so due to antenna situation)  I am using a 66' doublet in the attic fed with 300 ohm twinlead through the Elecraft 4:1 balun into the KAT2.  I haven't noticed the noise on other bands, just 80m.  Any ideas as to what may be causing this noise?  I'll try to get a recording of it soon.  Stay posted.

TJ
W0EA
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[e-mail]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[TJ Campie]

I dont have a NB so that's not it and yeah it is all the time, but only on
80m.  Real strange.  I'm at a loss.

TJ

On Thu, Jan 7, 2010 at 7:47 PM, DaveVK <[hidden email]> wrote:

>
> Hi Tom,
>
> I sometimes get that on 40mx with my NB on in the presence of strong
> broadcast stations.  If I turn the NB off all is well again.
>
> I know this may not necessarily help your situation.  Is your distortion
> all
> the time?
>
> Dave
>
>
> Tom Campie wrote:
> >
> > Hey guys, I'm having a problem with my K2 and scratchy RX on receive
> > audio.  The problem exists with or without headphones and at any volume.
> > I tried turning off AGC and it still was there and its on all strengths
> of
> > signals (I have limited access to anything stronger than S3 or so due to
> > antenna situation)  I am using a 66' doublet in the attic fed with 300
> ohm
> > twinlead through the Elecraft 4:1 balun into the KAT2.  I haven't noticed
> > the noise on other bands, just 80m.  Any ideas as to what may be causing
> > this noise?  I'll try to get a recording of it soon.  Stay posted.
> >
> > TJ
> > W0EA
> > ______________________________________________________________
> > 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
> >
> >
>
> --
> View this message in context:
> http://n2.nabble.com/K2-80m-Scratch-RX-audio-tp4264100p4269955.html
> Sent from the [K2] mailing list archive at Nabble.com.
> ______________________________________________________________
> 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
>

______________________________________________________________
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