[Elecraft] K144XV

[hdv]

Hi all,I am looking for a K144XV transvertor.In case you want to sell it, 
please make me an off-line offer, including cheapest shipping to The 
Netherlands.73 HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone.
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[Elecraft] [K2] Legacy Tuneups, Rescue, Build Services

[Alan D. Wilcox]

Hello,

Does your K2 need repair? Tuneup?
Want to sell it, but it needs some attention before offering it for sale? 

In addition to tuning your rig, I can also rescue a building project you might 
have started some time ago.

See what my clients have said about my construction and service work at 
http://www.eham.net/reviews/detail/6768 

Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure --  are 
at
https://wilcoxengineering.com/kpa100-in-ec2/ 

Cheers,
Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-916-9590 (cell, text)
http://amazon.com/author/alandwilcox
Williamsport, PA 17701

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[Elecraft] RFI issues

[Andreas Wachter via Elecraft]

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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Re: [Elecraft] RFI issues

[Victor Rosenthal 4X6GP]

One thing to try is an old-fashioned lowpass filter, such as used to be 
common as a measure against TVI. If the problem is caused by the TV/FM 
signals, this should help.


The K3's t/r switch can be overwhelmed by massive signals. I had such a 
problem with a 50 kW AM BC station that's visible from my antenna. I 
solved it by switching from vertical to horizontal polarization, but a 
high-pass filter also worked.


73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 18/02/2020 18:29, Andreas Wachter via Elecraft wrote:

I live about 1.6 miles from some tall antenna towers broadcasting
digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on
FM (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB
and KWPZ-FM. Ever since I moved to this QTH a few months ago, I am
unable to use my K3: solid S9+ noise on all bands using a makeshift
dipole strung up on some trees outside my house. I’ve tried to locate
the source of the RFI within my home but so far have been unable to
locate any RFI emanating from within my home. Could it be that the
TV/FM stations antenna towers, which are within direct line of sight
from my house, might be responsible for the RFI?

73, Andreas

K6AKW __ 
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[Elecraft] Found: P3

[AE4PB]

Thank you very much! I should have it connected and going before the end of
the week.

 

I am wondering if it's a good idea to buy a pre-owned VGA card for the P3,
that is of course if I can find one. 

 

73

De AE4PB

 

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Re: [Elecraft] RFI issues

[Hank via Elecraft]

Have you tried pulling your main AC breaker and running your K3 on a car 
battery?  That way, you are sure that nothing in your house (switching power 
supplies, poor mechanical joints, etc.) is creating the noise.  


I was able to convince my nearest neighbors to shut down their AC panels also 
after my house seemed "clean".  


I finally found 2 bad crimped power line connections down the street from my 
and a home made fence charge at a goat farm about 300yds behind my house 
through the woods.  Another ham and the local power company came and helped.  
The power company did their work and it cleared up several S units, but 
something was still there.  Riding around with a scanner tuned to 1800kHz (AM 
mode) with no antenna connected yielded the goat fence.  The power company came 
out with a listening device to verify my findings.  I offered to buy the farmer 
a fence charger from the hardware store, but he went ahead and did it on his 
own - it really helped having the power company there!!

I still have a neighbor with a noisy plasma TV - an MFJ-1026 with a longwire 
out the window nulls it out quite well when the TV in on.  Eventually the TV 
will die (I'm hoping).

Good luck!
Hank
K4HYJ

 
- Original Message -
From: Andreas Wachter via Elecraft (elecraft@mailman.qth.net)
Date: 02/18/20 12:39
To: elecraft@mailman.qth.net
Subject: [Elecraft] RFI issues

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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Re: [Elecraft] Found: P3

[Phil Hystad via Elecraft]

How about building your own…

https://eater.net/vga 

73, phil, K7PEH


> On Feb 18, 2020, at 9:54 AM, ae...@carolinaheli.com wrote:
> 
> Thank you very much! I should have it connected and going before the end of
> the week.
> 
> 
> 
> I am wondering if it's a good idea to buy a pre-owned VGA card for the P3,
> that is of course if I can find one. 
> 
> 
> 
> 73
> 
> De AE4PB
> 
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Message delivered to phys...@mac.com 

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Re: [Elecraft] RFI issues

[Jim Brown]

On 2/18/2020 8:29 AM, Andreas Wachter via Elecraft wrote:

Could it be that the TV/FM stations antenna towers, which are within direct 
line of sight from my house, might be responsible for the RFI?


Very unlikely. This application not provides lots of advice on finding 
and killing noise.  http://k9yc.com/KillingReceiveNoise.pdf


73, Jim K9YC
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Re: [Elecraft] Found: P3

[AE4PB]

Good link! I could absolutely do that if I wasn’t working full time and earning 
a masters. I’d not get the keyboard functionality with a DIY card. 

I’m just not wanting to pay full retail for a legacy option (although I’m 
excited to get my P3 and VGA card). 

I’ll be picking up my P3 this week. 

 

I need to get over my key fright and get on the air a bit. Maybe Sunday  
afternoon. 

Es 73

De ae4pb ..

 

Jerry Moore

Cell: 803-431-1870

 

From: Phil Hystad  
Sent: Tuesday, February 18, 2020 1:02 PM
To: ae...@carolinaheli.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Found: P3

 

How about building your own…

 

https://eater.net/vga

 

73, phil, K7PEH

 





On Feb 18, 2020, at 9:54 AM, ae...@carolinaheli.com 
  wrote:

 

Thank you very much! I should have it connected and going before the end of
the week.



I am wondering if it's a good idea to buy a pre-owned VGA card for the P3,
that is of course if I can find one. 



73

De AE4PB



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Re: [Elecraft] Found: P3

[Don Wilhelm]

The SVGA option for the P3 is not a normal computer type VGA card.  You 
need the option designed to use the signals in the P3.


73,
Don W3FPR

On 2/18/2020 12:54 PM, ae...@carolinaheli.com wrote:

Thank you very much! I should have it connected and going before the end of
the week.

  


I am wondering if it's a good idea to buy a pre-owned VGA card for the P3,
that is of course if I can find one.


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[Elecraft] P3 HDMI output

[William Levy]

Amazon will be happy to supply you a doodle cable that converts the VGA to
HDMI.
If you have noticed that the newer idiot surround sound boxes won't play
your LP's or CD's you can get doodle cables for that problem too.

Always a problem when new standards change everything. Some one always has
a workaround.

None of these things hurts the pocketbook.

Bill N2WL
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Re: [Elecraft] Found: P3

[donovanf]

P3SVGA Video/FFT option in NOT a "VGA card" This is one of the 
most common misunderstandings about Elecraft products, partially a 
result of an uninformative Elecraft web site, poor marketing and a poor 
choice of part number that reinforces the widespread misunderstanding 
about the functionality of the P3SVGA option. 



The P3SVGA 2048 point FFT processor provides much higher frequency 
resolution per dot on a larger screen. The P3 built-in display has a 
480x272 resolution while the P3SVGA resolution is 1440x900. 


N6TV's web site is far more informative than any P3SVGA performance 
related information available on the Elecraft web site. See slides 11 and 12: 


www.contestuniversity.com/wp-content/uploads/2019/05/12-N6TV_Dayton_2019_Using_Waterfall_Displays.pdf
 


73 
Frank 
W3LPL 


- Original Message -

From: "Phil Hystad via Elecraft"  
To: ae...@carolinaheli.com 
Cc: elecraft@mailman.qth.net 
Sent: Tuesday, February 18, 2020 6:02:06 PM 
Subject: Re: [Elecraft] Found: P3 

How about building your own… 

https://eater.net/vga  

73, phil, K7PEH 


> On Feb 18, 2020, at 9:54 AM, ae...@carolinaheli.com wrote: 
> 
> Thank you very much! I should have it connected and going before the end of 
> the week. 
> 
> 
> 
> I am wondering if it's a good idea to buy a pre-owned VGA card for the P3, 
> that is of course if I can find one. 
> 
> 
> 
> 73 
> 
> De AE4PB 
> 
> 
> 
> __ 
> Elecraft mailing list 
> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
> Help: http://mailman.qth.net/mmfaq.htm 
> Post: mailto:Elecraft@mailman.qth.net 
> 
> This list hosted by: http://www.qsl.net 
> Please help support this email list: http://www.qsl.net/donate.html 
> Message delivered to phys...@mac.com 

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Re: [Elecraft] Found: P3

[Phil Hystad via Elecraft]

The videos are excellent.  Ben Eater is one of the better teachers of digital 
electronics (especially to a philistine such as myself) on Youtube.  I built 
his 8-bit computer project almost two years ago and I am in the process of 
building the 6502 computer project (yes, my own Apple-1).

Even though you may not plan on building your own VGA (which Ben refers to as 
the world’s worst VGA) you should watch the videos to understand how Ben 
teaches an how VGA signals work.

phil

> On Feb 18, 2020, at 10:20 AM, ae...@carolinaheli.com wrote:
> 
> Good link! I could absolutely do that if I wasn’t working full time and 
> earning a masters. I’d not get the keyboard functionality with a DIY card. 
> I’m just not wanting to pay full retail for a legacy option (although I’m 
> excited to get my P3 and VGA card). 
> I’ll be picking up my P3 this week. 
>  
> I need to get over my key fright and get on the air a bit. Maybe Sunday  
> afternoon. 
> Es 73
> De ae4pb ..
>  
> Jerry Moore
> Cell: 803-431-1870
>  
> From: Phil Hystad mailto:phys...@mac.com>> 
> Sent: Tuesday, February 18, 2020 1:02 PM
> To: ae...@carolinaheli.com 
> Cc: elecraft@mailman.qth.net 
> Subject: Re: [Elecraft] Found: P3
>  
> How about building your own…
>  
> https://eater.net/vga 
>  
> 73, phil, K7PEH
>  
> 
> 
>> On Feb 18, 2020, at 9:54 AM, ae...@carolinaheli.com 
>>  wrote:
>>  
>> Thank you very much! I should have it connected and going before the end of
>> the week.
>> 
>> 
>> 
>> I am wondering if it's a good idea to buy a pre-owned VGA card for the P3,
>> that is of course if I can find one. 
>> 
>> 
>> 
>> 73
>> 
>> De AE4PB
>> 
>> 
>> 
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
>> 
>> Help: http://mailman.qth.net/mmfaq.htm 
>> Post: mailto:Elecraft@mailman.qth.net 
>> 
>> This list hosted by: http://www.qsl.net 
>> Please help support this email list: http://www.qsl.net/donate.html 
>> 
>> Message delivered to phys...@mac.com 
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Re: [Elecraft] Found: P3

[George Thornton]

Concur that a standard computer VGA card will not work here.  On the other had 
if you are referring to a pre-owned Elecraft SVGA option card that you buy used 
on the market I don't think that will be a problem, I am not aware of later 
generation cards and most of the feature upgrades are in firmware anyway.  If 
that is what you are thinking you might want to make sure by calling Elecraft.

The SVGA option works with almost any monitor for sale today that has a 
standard VGA plug connection.

While you are at it I would speak positively about the tx monitor option.  I 
have found that really useful to quickly verify my transmitter is operating 
properly and the microphone settings are ideally configured.   

I use my K3/P3 combination a lot in Field Day.  Things can go wrong in this 
setting, including disrupted antenna feed lines and antenna malfunctions.  In 
addition with multiple operators using the equipment you don't' know if someone 
has altered settings in some manner.  With the TX  monitor equipment you 
visually see what you are doing with every transmission.  You catch something 
going wrong immediately and can move to correct it.You also know if no one 
is responding to you it is more likely due to band conditions or who is out 
there rather than your equipment.

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Don Wilhelm
Sent: Tuesday, February 18, 2020 10:24 AM
To: ae...@carolinaheli.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Found: P3

The SVGA option for the P3 is not a normal computer type VGA card.  You need 
the option designed to use the signals in the P3.

73,
Don W3FPR

On 2/18/2020 12:54 PM, ae...@carolinaheli.com wrote:
> Thank you very much! I should have it connected and going before the 
> end of the week.
> 
>   
> 
> I am wondering if it's a good idea to buy a pre-owned VGA card for the 
> P3, that is of course if I can find one.
> 
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Re: [Elecraft] RFI issues

[Dave Cole]

I have some pages which might help locate your RFI at:

https://www.nk7z.net/i-have-rfi-now-what-locating-it/

Also Jim Brown has a ton of data at:

http://www.audiosystemsgroup.com/publish.htm

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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Re: [Elecraft] RFI issues

[Dave Cole]

Hi,

I might suspect something else...

Have you done a power off test of your home yet?

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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Re: [Elecraft] Found: P3

[Jim McDonald]

I use 1920 X 1080 on a 22" monitor, and it looks great.

Jim N7US

-Original Message-

P3SVGA Video/FFT option in NOT a "VGA card" This is one of the most common 
misunderstandings about Elecraft products, partially a result of an 
uninformative Elecraft web site, poor marketing and a poor choice of part 
number that reinforces the widespread misunderstanding about the functionality 
of the P3SVGA option. 

The P3SVGA 2048 point FFT processor provides much higher frequency resolution 
per dot on a larger screen. The P3 built-in display has a
480x272 resolution while the P3SVGA resolution is 1440x900. 

N6TV's web site is far more informative than any P3SVGA performance related 
information available on the Elecraft web site. See slides 11 and 12: 

www.contestuniversity.com/wp-content/uploads/2019/05/12-N6TV_Dayton_2019_Using_Waterfall_Displays.pdf
 


73 
Frank 
W3LPL 


- Original Message -

From: "Phil Hystad via Elecraft"  
To: ae...@carolinaheli.com 
Cc: elecraft@mailman.qth.net 
Sent: Tuesday, February 18, 2020 6:02:06 PM 
Subject: Re: [Elecraft] Found: P3 

How about building your own… 

https://eater.net/vga  

73, phil, K7PEH 


> On Feb 18, 2020, at 9:54 AM, ae...@carolinaheli.com wrote: 
> 
> Thank you very much! I should have it connected and going before the end of 
> the week. 
> 
> 
> 
> I am wondering if it's a good idea to buy a pre-owned VGA card for the P3, 
> that is of course if I can find one. 
> 
> 
> 
> 73 
> 
> De AE4PB 
> 

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[Elecraft] re TCP Port for KPA500 and KAT500

[John Newgas]

I can’t help with whether the ports are hard coded or not … but I can give you 
a neat solution.

You can  use a low cost raspberry Pi with a couple of USB to Serial adaptors to 
link to the KPA500 and KAT500

The free software ser2net will give you a direct interface from the TCP/IP to 
the serial ports.

Configuration is pretty easy and basically two lines like 
4626:telnet:600:/dev/ttyUSB0:19200 8DATABITS NONE 1STOPBIT banner
4627:telnet:600:/dev/ttyUSB1:19200 8DATABITS NONE 1STOPBIT banner

You can connect to the TCP/IP side of the Raspberry Pi through WiFi or Ethernet 
from your main router, but  you would have to open those ports inside the 
router.

I run my KX3 remotely like that without problems ( higher baud rates work well 
for me )

John G7LTQ



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Re: [Elecraft] TCP Port for KPA500 and KAT500

[Jack Brindle via Elecraft]

I suspect the addresses in the remote software are fixed, or at least that is 
their default. With that in mind, if you want to use the remote software, then 
you probably should set up the ethernet serial adapter to use those specific 
ports. I’m not really familiar with how the remote software is set up, but I am 
sure we can ask.

Hope this helps…

73!
Jack, W6FB


> On Feb 17, 2020, at 12:47 PM, VO1HPFrank  wrote:
> 
> Jack
> 
> The interface is a StarTech NETRS2322P two port  Ethernet to Serial Port
> server which will eventually go at my remote to replace the PC there that
> currently runs the Host software for the KPA and KAT.  
> 
> TCP Port forwarding must be done in both routers to open the full duplex
> path between the Control PC and the remote serial server.
> 
> What I am asking is:  should I use the TCP Port numbers that Elecraft uses
> in their remote control software.?
> 
> VO1HP
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] RFI issues

[Michael Walker]

HI Andreas

Sorry to hear about your noise.

I doubt your noise is related to digital TV as that is a long way away in
the frequency world.  It is pretty common to assume that it is not on your
own property.  I saw one guy who said the same thing and then found out a
year later it was his new dryer that was noisy even when they were not
using it.

I would not be surprised that most of your HF noise is within your own
property unless you did some significant research by  holding an AM radio
near each and every power cube or charger for phones, etc.  There are not
too many that are quiet.

I use my KX2 to find most of my HF noise issues and I must have tossed out
15 bad chargers.  The ones I could not just toss away, I had to add Mix 31
chokes to.

When you moved into your new house did you replace all the light bulbs with
LED bulbs?  They can be noisy.

If you haven't taken the time to do an indepth study on your own house, you
should.  You might be surprised.  I would plan an all day exercise when
everyone is out of the house.

Mike va3mw


On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:

> Hi,
>
> I might suspect something else...
>
> Have you done a power off test of your home yet?
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:
> > I live about 1.6 miles from some tall antenna towers broadcasting
> digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
> (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
> KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable to
> use my K3: solid S9+ noise on all bands using a makeshift dipole strung up
> on some trees outside my house. I’ve tried to locate the source of the RFI
> within my home but so far have been unable to locate any RFI emanating from
> within my home. Could it be that the TV/FM stations antenna towers, which
> are within direct line of sight from my house, might be responsible for the
> RFI?
> >
> > 73, Andreas
> >
> > K6AKW
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
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> >
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Re: [Elecraft] RFI issues

[Fred Nassar]

Had a similar issue moving to a new QTH. It turned out to be a bad
transformer in the neighborhood. You could call in an RFI complaint once
you rule out your own QTH and asked them to sniff around.

You can also sniff around with a 2 or 6 meter SSB rig if you have one.

Fred
KE4Q

On Tue, Feb 18, 2020, 5:47 PM Michael Walker  wrote:

> HI Andreas
>
> Sorry to hear about your noise.
>
> I doubt your noise is related to digital TV as that is a long way away in
> the frequency world.  It is pretty common to assume that it is not on your
> own property.  I saw one guy who said the same thing and then found out a
> year later it was his new dryer that was noisy even when they were not
> using it.
>
> I would not be surprised that most of your HF noise is within your own
> property unless you did some significant research by  holding an AM radio
> near each and every power cube or charger for phones, etc.  There are not
> too many that are quiet.
>
> I use my KX2 to find most of my HF noise issues and I must have tossed out
> 15 bad chargers.  The ones I could not just toss away, I had to add Mix 31
> chokes to.
>
> When you moved into your new house did you replace all the light bulbs with
> LED bulbs?  They can be noisy.
>
> If you haven't taken the time to do an indepth study on your own house, you
> should.  You might be surprised.  I would plan an all day exercise when
> everyone is out of the house.
>
> Mike va3mw
>
>
> On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:
>
> > Hi,
> >
> > I might suspect something else...
> >
> > Have you done a power off test of your home yet?
> >
> > 73, and thanks,
> > Dave (NK7Z)
> > https://www.nk7z.net
> > ARRL Volunteer Examiner
> > ARRL Technical Specialist
> > ARRL Asst. Director, NW Division, Technical Resources
> >
> > On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:
> > > I live about 1.6 miles from some tall antenna towers broadcasting
> > digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
> > (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
> > KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable to
> > use my K3: solid S9+ noise on all bands using a makeshift dipole strung
> up
> > on some trees outside my house. I’ve tried to locate the source of the
> RFI
> > within my home but so far have been unable to locate any RFI emanating
> from
> > within my home. Could it be that the TV/FM stations antenna towers, which
> > are within direct line of sight from my house, might be responsible for
> the
> > RFI?
> > >
> > > 73, Andreas
> > >
> > > K6AKW
> > > __
> > > Elecraft mailing list
> > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > > Help: http://mailman.qth.net/mmfaq.htm
> > > Post: mailto:Elecraft@mailman.qth.net
> > >
> > > This list hosted by: http://www.qsl.net
> > > Please help support this email list: http://www.qsl.net/donate.html
> > > Message delivered to d...@nk7z.net
> > >
> > __
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> >
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Re: [Elecraft] RFI issues

[Bill Lederer]

House we just moved into, we did new under-the-counter lighting.  Once I
got the ham shack started, I saw s9 noise on 160 and 80. Turn them off, and
it becomes quiet.

Other led panel lights produce no noise whatsoever.

But now that that is identified, I will be tracking down some other noise,
likely in the neighborhood.

w8lvn

On Tue, Feb 18, 2020 at 5:29 PM Fred Nassar  wrote:

> Had a similar issue moving to a new QTH. It turned out to be a bad
> transformer in the neighborhood. You could call in an RFI complaint once
> you rule out your own QTH and asked them to sniff around.
>
> You can also sniff around with a 2 or 6 meter SSB rig if you have one.
>
> Fred
> KE4Q
>
> On Tue, Feb 18, 2020, 5:47 PM Michael Walker  wrote:
>
> > HI Andreas
> >
> > Sorry to hear about your noise.
> >
> > I doubt your noise is related to digital TV as that is a long way away in
> > the frequency world.  It is pretty common to assume that it is not on
> your
> > own property.  I saw one guy who said the same thing and then found out a
> > year later it was his new dryer that was noisy even when they were not
> > using it.
> >
> > I would not be surprised that most of your HF noise is within your own
> > property unless you did some significant research by  holding an AM radio
> > near each and every power cube or charger for phones, etc.  There are not
> > too many that are quiet.
> >
> > I use my KX2 to find most of my HF noise issues and I must have tossed
> out
> > 15 bad chargers.  The ones I could not just toss away, I had to add Mix
> 31
> > chokes to.
> >
> > When you moved into your new house did you replace all the light bulbs
> with
> > LED bulbs?  They can be noisy.
> >
> > If you haven't taken the time to do an indepth study on your own house,
> you
> > should.  You might be surprised.  I would plan an all day exercise when
> > everyone is out of the house.
> >
> > Mike va3mw
> >
> >
> > On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:
> >
> > > Hi,
> > >
> > > I might suspect something else...
> > >
> > > Have you done a power off test of your home yet?
> > >
> > > 73, and thanks,
> > > Dave (NK7Z)
> > > https://www.nk7z.net
> > > ARRL Volunteer Examiner
> > > ARRL Technical Specialist
> > > ARRL Asst. Director, NW Division, Technical Resources
> > >
> > > On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:
> > > > I live about 1.6 miles from some tall antenna towers broadcasting
> > > digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
> > > (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
> > > KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable
> to
> > > use my K3: solid S9+ noise on all bands using a makeshift dipole strung
> > up
> > > on some trees outside my house. I’ve tried to locate the source of the
> > RFI
> > > within my home but so far have been unable to locate any RFI emanating
> > from
> > > within my home. Could it be that the TV/FM stations antenna towers,
> which
> > > are within direct line of sight from my house, might be responsible for
> > the
> > > RFI?
> > > >
> > > > 73, Andreas
> > > >
> > > > K6AKW
> > > > __
> > > > Elecraft mailing list
> > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> > > >
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> > > >
> > > __
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-- 
--w8lvn--
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Re: [Elecraft] RFI issues

[Keith N6JPA]

Have you inquired at a local ham radio club for help with your RFI/EMI 
issues for assistance in finding the problem?


I doubt  transmitters 1.6 miles away would create problems for you.


73, Keith, N6JPA


On 2/18/2020 8:29 AM, Andreas Wachter via Elecraft wrote:

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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Re: [Elecraft] RFI issues

[Andreas Wachter via Elecraft]

Yes, I did run the K3 off of a battery and pulled the main AC breaker. Didn’t 
make any difference. Thus my suspicion that the RFI is related to the 208 kW 
ERP TV station (and/or 63 kW EPR FM station) which are within 1.6 miles and in 
direct line of sight.

73, Andreas K6AKW 

> On Feb 18, 2020, at 10:00 AM, Hank  wrote:
> 
> 
> Have you tried pulling your main AC breaker and running your K3 on a car 
> battery?  That way, you are sure that nothing in your house (switching power 
> supplies, poor mechanical joints, etc.) is creating the noise.  
> 
> 
> I was able to convince my nearest neighbors to shut down their AC panels also 
> after my house seemed "clean".  
> 
> 
> I finally found 2 bad crimped power line connections down the street from my 
> and a home made fence charge at a goat farm about 300yds behind my house 
> through the woods.  Another ham and the local power company came and helped.  
> The power company did their work and it cleared up several S units, but 
> something was still there.  Riding around with a scanner tuned to 1800kHz (AM 
> mode) with no antenna connected yielded the goat fence.  The power company 
> came out with a listening device to verify my findings.  I offered to buy the 
> farmer a fence charger from the hardware store, but he went ahead and did it 
> on his own - it really helped having the power company there!!
> 
> I still have a neighbor with a noisy plasma TV - an MFJ-1026 with a longwire 
> out the window nulls it out quite well when the TV in on.  Eventually the TV 
> will die (I'm hoping).
> 
> Good luck!
> Hank
> K4HYJ
> 
>  
> - Original Message -
> From: Andreas Wachter via Elecraft (elecraft@mailman.qth.net)
> Date: 02/18/20 12:39
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] RFI issues
> 
> I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
> (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 
> kW ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I 
> moved to this QTH a few months ago, I am unable to use my K3: solid S9+ noise 
> on all bands using a makeshift dipole strung up on some trees outside my 
> house. I’ve tried to locate the source of the RFI within my home but so far 
> have been unable to locate any RFI emanating from within my home. Could it be 
> that the TV/FM stations antenna towers, which are within direct line of sight 
> from my house, might be responsible for the RFI?
> 
> 73, Andreas
> 
> K6AKW
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Re: [Elecraft] RFI issues

[Bob McGraw K4TAX]

One of the first things to try is to operate the station receiver from a 
battery, disconnect everything including the external ground,  but the 
antenna.  Then drop the mains breaker to the property.  If the noise 
changes, then some or part of it is on your property.  If the noise does 
not change then it is most likely not on your property.  Don't forget 
about any UPS that you may have on the property.   It must be turned off 
as well.  Our fiber internet service has a battery back-up at the 
demarcation. You may need to unplug that unit as well.


If it is not on your property, I suggest a portable AM radio tuned to 
1700 or such if there is not local station on the frequency.  Most of 
those radios have a rod antenna that is bi-directional.  Use it as a 
null device as the null will be much more pronounced than trying to peak 
the noise.   Headphones or earbuds will help.    You'll need a local / 
sub division map. Mark the axis of the radio on the map,   then move 
over 100 to 300 yards to the side and do the same.  Usually 3 or 4 sites 
will have the lines intersect.    You can then move to that location.  
Worst case, should you have 2 or more noise sources which are then a 
real challenge to chase.


If it is on your property, then drop every individual breaker, bring the 
mains back on and observe.  Then add one breaker and observe.  Add the 
next breaker and observe.   Finally you will find the 2 or 3 that 
contributes greatly to the noise.  Then you can check the devices on 
each one.   Don't forget about the doorbell transformer.  Those go bad, 
make noise, yet the doorbell will still work.


Once the location is known, then contact the property owner or the local 
utility.  You may have to be persistent with the local utility, move up 
the chain of command,  but diplomacy along every step goes a long way to 
getting something done.


It is also worthwhile to note the day and the times the observations 
were made.  It could be related to something only furing the day or only 
at night or maybe on each Wednesday and Friday  etc.


I doubt it is anything from the TV stations.

73

Bob, K4TAX


On 2/18/2020 4:45 PM, Michael Walker wrote:

HI Andreas

Sorry to hear about your noise.

I doubt your noise is related to digital TV as that is a long way away in
the frequency world.  It is pretty common to assume that it is not on your
own property.  I saw one guy who said the same thing and then found out a
year later it was his new dryer that was noisy even when they were not
using it.

I would not be surprised that most of your HF noise is within your own
property unless you did some significant research by  holding an AM radio
near each and every power cube or charger for phones, etc.  There are not
too many that are quiet.

I use my KX2 to find most of my HF noise issues and I must have tossed out
15 bad chargers.  The ones I could not just toss away, I had to add Mix 31
chokes to.

When you moved into your new house did you replace all the light bulbs with
LED bulbs?  They can be noisy.

If you haven't taken the time to do an indepth study on your own house, you
should.  You might be surprised.  I would plan an all day exercise when
everyone is out of the house.

Mike va3mw


On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:


Hi,

I might suspect something else...

Have you done a power off test of your home yet?

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:

I live about 1.6 miles from some tall antenna towers broadcasting

digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
(KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable to
use my K3: solid S9+ noise on all bands using a makeshift dipole strung up
on some trees outside my house. I’ve tried to locate the source of the RFI
within my home but so far have been unable to locate any RFI emanating from
within my home. Could it be that the TV/FM stations antenna towers, which
are within direct line of sight from my house, might be responsible for the
RFI?

73, Andreas

K6AKW
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Re: [Elecraft] RFI issues

[Bob McGraw K4TAX]

Does the noise appear on one band or several bands?  Is it tune-able 
thus limited to one broad frequency or just total broadband noise?


You will need to know the frequency of both transmitters and then 
perform an IM study.  The sum of those two frequencies is doubtful but 
the difference could be fall in the ham band(s).  You can contact the FM 
station and the TV station engineering department and inquire as to when 
they have transmitter maintenance scheduled.  What ever day or hour of 
the night that might be, you need to be listening.   If it doesn't go 
away, it isn't them.   If it does, that doesn't assure they are at 
fault.  I've seen chain link fences make a nice diode junction and it 
radiates like crazy.


Here is a link that will simplify the calculations. 
http://radiomobile.pe1mew.nl/?RF_Aids:On-Line_calculators:Intermodulation


73

Bob, K4TAX


On 2/18/2020 6:38 PM, Andreas Wachter via Elecraft wrote:

Yes, I did run the K3 off of a battery and pulled the main AC breaker. Didn’t 
make any difference. Thus my suspicion that the RFI is related to the 208 kW 
ERP TV station (and/or 63 kW EPR FM station) which are within 1.6 miles and in 
direct line of sight.

73, Andreas K6AKW


On Feb 18, 2020, at 10:00 AM, Hank  wrote:


Have you tried pulling your main AC breaker and running your K3 on a car 
battery?  That way, you are sure that nothing in your house (switching power 
supplies, poor mechanical joints, etc.) is creating the noise.


I was able to convince my nearest neighbors to shut down their AC panels also after my 
house seemed "clean".


I finally found 2 bad crimped power line connections down the street from my 
and a home made fence charge at a goat farm about 300yds behind my house 
through the woods.  Another ham and the local power company came and helped.  
The power company did their work and it cleared up several S units, but 
something was still there.  Riding around with a scanner tuned to 1800kHz (AM 
mode) with no antenna connected yielded the goat fence.  The power company came 
out with a listening device to verify my findings.  I offered to buy the farmer 
a fence charger from the hardware store, but he went ahead and did it on his 
own - it really helped having the power company there!!

I still have a neighbor with a noisy plasma TV - an MFJ-1026 with a longwire 
out the window nulls it out quite well when the TV in on.  Eventually the TV 
will die (I'm hoping).

Good luck!
Hank
K4HYJ

  
- Original Message -

From: Andreas Wachter via Elecraft (elecraft@mailman.qth.net)
Date: 02/18/20 12:39
To: elecraft@mailman.qth.net
Subject: [Elecraft] RFI issues

I live about 1.6 miles from some tall antenna towers broadcasting digital TV 
(KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM (KWPZ-FM) at 63 kW 
ERP on 106.5MHz - according to FCC info on KBCB and KWPZ-FM. Ever since I moved 
to this QTH a few months ago, I am unable to use my K3: solid S9+ noise on all 
bands using a makeshift dipole strung up on some trees outside my house. I’ve 
tried to locate the source of the RFI within my home but so far have been 
unable to locate any RFI emanating from within my home. Could it be that the 
TV/FM stations antenna towers, which are within direct line of sight from my 
house, might be responsible for the RFI?

73, Andreas

K6AKW
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[Elecraft] Distorted Audio Recording

[Ken Widelitz]

With a K3 with upgraded IO, I am getting distorted recording audio using
the USB CODEC. This used to work. I don't know what changes were made to
screw it up. In my SO2R setup, the other radio records perfectly. I can't
find any menu entry differences.

73, Ken, K6LA / VY2TT
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Re: [Elecraft] Distorted Audio Recording

[Nr4c]

It’s a whole different audio chain. 
Now the ADC is in the radio, not the computer. 

Sent from my iPhone
...nr4c. bill


> On Feb 18, 2020, at 10:23 PM, Ken Widelitz  wrote:
> 
> With a K3 with upgraded IO, I am getting distorted recording audio using
> the USB CODEC. This used to work. I don't know what changes were made to
> screw it up. In my SO2R setup, the other radio records perfectly. I can't
> find any menu entry differences.
> 
> 73, Ken, K6LA / VY2TT
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Re: [Elecraft] Distorted Audio Recording

[K5WA]

Bill,

 

When Ken mentions his SO2R setup, that means two radios (inferring both are
K3) and he is saying his other radio is working perfectly so he understands
that the rig has an audio codec built into both his K3 rigs (probably why he
got the upgraded I/O board). One has a distortion problem.

 

Ken,

 

Have you tried uninstalling the CODEC showing in Device Manager and just
reinstalling it?  Also, maybe the CODEC properties got scrabbled somehow and
each CODEC has different properties?  Just guessing from memory since I
don't have a rig here to look at.  Everything is at the station.

 

Good luck tracking it down. 

 

Bob K5WA

 

Message: 22

Date: Tue, 18 Feb 2020 23:34:19 -0500

From: Nr4c 

To: Ken Widelitz 

Cc: Elecraft Reflector 

Subject: Re: [Elecraft] Distorted Audio Recording

Message-ID: <903fdc50-0eac-48cd-bc2e-76875bcef...@widomaker.com>

Content-Type: text/plain; charset=utf-8

 

It?s a whole different audio chain. 

Now the ADC is in the radio, not the computer. 

 

Sent from my iPhone

...nr4c. bill

 

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Re: [Elecraft] RFI issues

[hawley, charles j jr]

We bought a new Keurig coffee maker which does a pot or also the pods. It puts 
a huge noise out to the ham frequencies. Have to turn it off to get on 80M

Chuck Jack Hawley 
KE9UW

Sent from my iPhone, cjack 

> On Feb 18, 2020, at 5:51 PM, Bill Lederer  wrote:
> 
> House we just moved into, we did new under-the-counter lighting.  Once I
> got the ham shack started, I saw s9 noise on 160 and 80. Turn them off, and
> it becomes quiet.
> 
> Other led panel lights produce no noise whatsoever.
> 
> But now that that is identified, I will be tracking down some other noise,
> likely in the neighborhood.
> 
> w8lvn
> 
>> On Tue, Feb 18, 2020 at 5:29 PM Fred Nassar  wrote:
>> 
>> Had a similar issue moving to a new QTH. It turned out to be a bad
>> transformer in the neighborhood. You could call in an RFI complaint once
>> you rule out your own QTH and asked them to sniff around.
>> 
>> You can also sniff around with a 2 or 6 meter SSB rig if you have one.
>> 
>> Fred
>> KE4Q
>> 
>>> On Tue, Feb 18, 2020, 5:47 PM Michael Walker  wrote:
>>> 
>>> HI Andreas
>>> 
>>> Sorry to hear about your noise.
>>> 
>>> I doubt your noise is related to digital TV as that is a long way away in
>>> the frequency world.  It is pretty common to assume that it is not on
>> your
>>> own property.  I saw one guy who said the same thing and then found out a
>>> year later it was his new dryer that was noisy even when they were not
>>> using it.
>>> 
>>> I would not be surprised that most of your HF noise is within your own
>>> property unless you did some significant research by  holding an AM radio
>>> near each and every power cube or charger for phones, etc.  There are not
>>> too many that are quiet.
>>> 
>>> I use my KX2 to find most of my HF noise issues and I must have tossed
>> out
>>> 15 bad chargers.  The ones I could not just toss away, I had to add Mix
>> 31
>>> chokes to.
>>> 
>>> When you moved into your new house did you replace all the light bulbs
>> with
>>> LED bulbs?  They can be noisy.
>>> 
>>> If you haven't taken the time to do an indepth study on your own house,
>> you
>>> should.  You might be surprised.  I would plan an all day exercise when
>>> everyone is out of the house.
>>> 
>>> Mike va3mw
>>> 
>>> 
 On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:
>>> 
 Hi,
 
 I might suspect something else...
 
 Have you done a power off test of your home yet?
 
 73, and thanks,
 Dave (NK7Z)
 https://www.nk7z.net
 ARRL Volunteer Examiner
 ARRL Technical Specialist
 ARRL Asst. Director, NW Division, Technical Resources
 
 On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:
> I live about 1.6 miles from some tall antenna towers broadcasting
 digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
 (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
 KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable
>> to
 use my K3: solid S9+ noise on all bands using a makeshift dipole strung
>>> up
 on some trees outside my house. I’ve tried to locate the source of the
>>> RFI
 within my home but so far have been unable to locate any RFI emanating
>>> from
 within my home. Could it be that the TV/FM stations antenna towers,
>> which
 are within direct line of sight from my house, might be responsible for
>>> the
 RFI?
> 
> 73, Andreas
> 
> K6AKW
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