In the UK there have been many complaints about RFI from Panasonic Plasma TV's.
Some people have had success in getting the problem resolved, generally by the
entire
screen assembly being changed out. Others have received the same sort of
response as you.
Luckily my neighbour who had a very
Need help with some troubleshooting...here is the background:
After being gone for a month I returned to find that my iMac would not
boot up, the LP100 display had noticeably dimmed and my Steppir 3 ele
beam had super high SWR on 20m only. Although I had disconnected p/s and
antennas, we had an
Need help with some troubleshooting...here is the background:
After being gone for a month I returned to find that my iMac would not
boot up, the LP100 display had noticeably dimmed and my Steppir 3 ele
beam had super high SWR on 20m only. Although I had disconnected p/s and
antennas, we had an
Tom,
So, here is the question. If the SO239 was bad at Ant1, why does it
work on all bands except 20m? Unfortunately, this was a factory
built unit, #250, so my knowledge of the insides is very sketchy.
What do I need to look for?
Before doing anything else, connect the dummy load to Ant 1,
A relay switches the KAT3 output between Ant 1 and Ant 2 and there's a
discharge tube on each Ant circuit. It sounds like the relay or the
discharge tube circuit on Ant 1 has been damaged.
Suggest you send an e-mail to k3support at elecraft dot com and they'll help
you get it put right.
73,
Hi all,
I am curious as to what this noise sounds like. I don't think I have any of
it but it would be nice to be able to recognize it if someone in the
neighborhood should get one. Could someone with the noise provide an audio
clip? I can host the clip for anyone with limited options, although
I have K3 #2808 that I purchased used about 6 months ago. This week, I
added the KAT3 antenna tuner and the 400 and 250 Hz 8-pole filters. All
I can say is WOW!!!
Now for my questionIs there a way to
make the frequency follow the mode per band (or has this been discussed
already and I
Don,
thank you - everything looks fine. The tuner seems to work.
73! de Werner OE9FWV
Don Wilhelm schrieb am 25 Nov 2010 um 19:59:
Werner,
You have obtained a better than normal adjustment - normally 008 and
above is considered OK. I believe there is a statement to that effect
Maybe this older article will help.
http://www.eham.net/articles/4285
73 de Brian/K3KO
On 11/26/2010 17:02, ab2tc wrote:
Hi all,
I am curious as to what this noise sounds like. I don't think I have any of
it but it would be nice to be able to recognize it if someone in the
neighborhood
Hi,
Interesting article. I take some consolation in the fact that the article
goes all the way back to 2002. Maybe the predicted onslaught of these TV
hasn't happened. I have two LCD TVs and have never considered going to a
plasma device. The LCD TVs are relatively benign, although I can hear
So based on all the information the best bet is a MFJ 1026 sound
cancelling system and that is a hit our miss solution.
The next question that I have is there any similar devices made by
different companies so one can compare options.
I am willing to try a solution like this as its much
The ANC-4 is the original design for active cancelling
systems. It can be VERY effective. Try mounting the
sense antenna as close to the offending TV as possible.
http://www.timewave.com/support/ANC-4/anc4.html
73
Gene K1NR
K2 6Kxx
On Fri, 26 Nov 2010 13:35:26 -0500 (EST)
On Fri, 2010-11-26 at 09:02 -0800, ab2tc wrote:
Hi all,
I am curious as to what this noise sounds like. I don't think I have any of
it but it would be nice to be able to recognize it if someone in the
neighborhood should get one. Could someone with the noise provide an audio
clip? I can
Panasonic stuff isn't all bad!
We have two Panasonic LCD TV's here. Both have very good pictures and
neither is a QRM generator.
Whilst I understand the motivation to boycott their products, I feel
that giving the vote of confidence to their RF quiet products in
preference to their heavily
$10 more than a MFJ 1026, so I guess I give someone else than MFJ my
money.
When I get it I will give a review to the list.
Thx
Don
KD8NNU
On Fri, Nov 26, 2010 at 1:42 PM, Eugene Balinski wrote:
The ANC-4 is the original design for active cancelling
systems. It can be VERY effective. Try
Hi Don,
The JPS ANC-4 is similar to and preceded the MFJ unit. It lacks the 'Peak
and Invert' feature of the MFJ. I suspect it is sometimes easier to find a
peak and invert than finding a null. I recall on the ANC-4 finding a good
null was sometimes difficult.
73,
Dick - KA5KKT
Larry,
As far as I know there is no way to do it the way you asked, but there
IS another way - by using the memories.
If you use the Quick Memories, you can go to the last used frequency
on any band - I set up my button 1 for 160 meters, 2 for 80, 3 for 40m,
4 for 20 m, 5 for 15 m, 6 for 10
Larry,
I think you can accomplish what you want by using the per-band quick memories
as described on page 16 of the Owner's manual.
Memories M 1 – M 4 are per-band quick memories. For example, you might set up
M 1 for each band’s CW segment, M 2 for the SSB segment, etc.
As an example, I have
I guess I picked the right brand. I've had a Pioneer 50 plasma since 2004
and it doesn't generate any RF noise.
Phil - AD5X
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
Hi,
One thing is for sure: Once you have either one of these devices in front of
your K3 receiver, you can wave good-bye to the world class blocking and IMD
dynamic range of your receiver. I would consider this an absolute last
resort. I don't think I could put up with the necessary knob
I believe that anything that is worth griping about in public carries with
it the obligation to gripe to the regulatory agencies too.
Sure, the FCC isn't likely to even notice, much less act upon, a letter from
one person.
But, how about thousands of e-mails or phone calls a month from
Enlist the support of RAC. The noise issue has no respect for the 49th
parallel.
Gary, VE1RGB
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: November 26, 2010 4:34 PM
To: elecraft@mailman.qth.net
Can only speak as I find Phil...
The UK TV licence includes a clause which says that the owner of
the television apparatus shall not permit it to cause interference.
If that was enforced, then all TV manufacturers would have to comply with
the regulations, or have no sales in the UK...
73
Ian will not be able to start the UK Elecraft net this Sunday, I will
act as net control until Ian joins us.
The net will be at the usual time of 0900 hours (UTC) on 3658 KHz.
73 Dave, G4AON
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Home:
Hi,
Amen to that. At least in this case there is no doubt that the FCC has
jurisdiction (as opposed to power line noise where they apparently don't
(The FCC does not regulate power companies is a standard response of
theirs)). So rest assured that I will complain first time I have any
evidence
HI Dick,
From your comment you prefer the MFJ unit.However, I am concerned
about MFJ quality. Do you have one of these that you use?
Thx
Don
On Fri, Nov 26, 2010 at 2:07 PM, Edward Dickinson, III wrote:
Hi Don,
The JPS ANC-4 is similar to and preceded the MFJ unit. It lacks the
Hi Knut,
Your comments are well noted and if the noise is not present I can
disconnect it from the system. However when this noise is present, I am
unable to do anything. So world class is relative to the enviornment
and there are times when my well are not world class. :-(
Don
On Fri,
ab2tc wrote:
Hi,
One thing is for sure: Once you have either one of these devices in front
of your K3 receiver, you can wave good-bye to the world class blocking and
IMD dynamic range of your receiver. I would consider this an absolute last
resort. I don't think I could put up with the
Don't get me wrong Julian, I would make the same choice as you given the
circumstances. It's just that the circumstances shouldn't be so. This whole
thing with allowing devices that will for sure interfere and then leave it
to the affected parties to resolve the problems when the inevitable
Ian will not be able to start the UK Elecraft net this Sunday, I will
act as net control until Ian joins us.
The net will be at the usual time of 0900 hours (UTC) on 3658 KHz.
73 Dave, G4AON
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Elecraft mailing list
Home:
On 11/26/2010 1:03 PM, Stewart wrote:
Can only speak as I find Phil...
The UK TV licence includes a clause which says that the owner of
the television apparatus shall not permit it to cause
interference.
If that was enforced, then all TV manufacturers would have to
comply with the
Today I paid a visit to Walmarts TV department. I brought along my portable AM
radio. While tuned to a spot on the AM BC band, I walked along the row of
dozens of flat screen TVs. There must be at least 50 of them! Suddenly the
noise level jumped to a loud roar. I looked at the 42 set next to
It is a shame that there is not more FCC enforcement directed at
manufacturers rather than at consumers.
Have you ever tried to convince a consumer that his expensive TV is
producing radiation that is interfering with your ham radio? Talk about
getting that deer in the headlights stare!
The
I had a Vizio 46 plasma TV which seemed to be pretty quiet. It was less than
10 feet from my K2 and TS-570 (my vertical antenna is about 60 feet away).
Unfortunately it died after about 4 years and was replaced by a LCD model.
Vizio no longer makes plasma sets.
Bob, N7XY
On Nov 26, 2010,
Don -
I have not used the MFJ product. I've just noticed it appears similar to
the JPS ANC-4 with the added opportunity to invert a peaked noise source
rather than search for a null. I think such a feature may be useful in some
circumstances.
I no longer have the JPS ANC-4 as the much of
On 11/26/2010 2:20 PM, Don Wilhelm wrote:
It is a shame that there is not more FCC enforcement directed at
manufacturers rather than at consumers.
Have you ever tried to convince a consumer that his expensive TV is
producing radiation that is interfering with your ham radio? Talk about
I have been mistaken (again)! I was under the impression this was basically
an Elecraft technical, or at least semi-technical reflector?
Last week I was in France and when I returned, I had over 860 emails. Of
those 860 emails, 580 were on this reflector! Of those 580 emails, exactly
27 had
Hi Tommy.
I understand your concern. You might consider monitoring the reflector in
your browser rather than via email. Doing so has saved me from email
issues. It may not serve everyone's purpose, but it can be useful for some.
Here's a link you can try.
No suggestions?
Hope everyone had a good thanksgiving. I know mine is about to start; my
11mo daughter just came home from pediatric ICU. I am thankful for that.
73,
James K2QI
On Wed, Nov 24, 2010 at 10:19 PM, James Sarte (K2QI) k2qi@gmail.comwrote:
Curious thing I noticed today;
Hello again again,
Hi again,
When I came across this thread, I was somewhat puzzled, as I didn't think
that there was this imminent threat of an onslaught of interference from
plasma displays. A little bit of Google research and talk with people in the
know bears out that the plasma technology
What are the correct setting to get the K3 to work with the Microham MKII.
I see K3 and K3 (patched) with no info at all about what K3 patched even
means. It used to work with just K3. Work has been hectic and finally I
get a chance to work CQ WW CW and the MKII will not connect with the K3
What are the correct setting to get the K3 to work with the Microham
MKII. I see K3 and K3 (patched) with no info at all about what K3
patched even means.
Either will work. The (patched) version clears the CAT queue more
quickly if the K3 stops responding (user turns it off but leaves a
Hello Tommy:
This list is not specifically an Elecraft product technical discussion. As
Eric, the list moderator, wrote a few days ago, they want the Elecraft to be
... the friendly 'goto' place for both Elecraft product and overall ham
radio information.
Interference that compromises Amateur
Tom:
The same thing would happen if you went to Spain or Starkville, MS.
I've got the K3 and have some QRM from a plasma. The NB doesn't seem to
respond well although it sounds very similar to your typical AC power line
noise.
I wonder if Elecraft might have a plasma nearby and could run some
James,
I hope your daughter is feeling better soon.
Re your questions (based on my observations using sound card software on
both channels from the LINE OUT jack, and stereo headphones plugged into
the SPKRS jack):
1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It
has no
I operate in a sometimes very high QRN area...45 y.o. Electric Distribution
System in the area. Unblanked Noise has recently and regularly been in the
10 over S-9 realm on 40 meters.
Can improvements be made to the K3 Noise Blanker? Firmware..? Hardware..?
73,
Dick - KA5KKT
Thank you Rich,
My daughter had a severe case of bronchiolitis. I'm happy to say that she's on
the mend back at home.
Also, I'm grateful for your reply to my questions. You have confirmed my
assumptions.
73 and Happy Holidays,
James K2QI
Sent via BlackBerry from T-Mobile
-Original
Well, 80% of my operating time is spent in what seems like electromagnetic
hell. The irony is that I live in a rural area at the end of the earth. I
have only 3 neighbours within a 4km radius. One of them has a plasma screen
TV. Another has something else, perhaps an arcing thermostat or
I used ANC in the past. It was good.
Sent from my iPhone 4
VK7JB zen...@netspace.net.au 於 2010年11月27日 下午2:18 寫道：
Well, 80% of my operating time is spent in what seems like electromagnetic
hell. The irony is that I live in a rural area at the end of the earth. I
have only 3 neighbours
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