Our large (ish) screen TV wipes out everything from longwave to about
25.200 MHz. I devised a brilliant workaround by installing a powerstrip
behind the TV, to enjoy blessed silence. Other appliances I've known
and hated (for the RFI they generate): Microwaves (even when not
cooking), VCRs (Horrible hash-generators), thermostats, battery chargers,
and almost every PC printer I've ever owned. I think Part 15 should
be better - enforced.

Congratulations, though, on your new - found freedom from the noise beast!

73,

Steve Lawrence
Burnsville, Minnesota


Thanks Steve. This has really made my day. I even had to message my
girlfriend at work to tell her about it, which is kind of dumb because she
doesn't really care, but she's happy if I am. I can't believe that I
overlooked such a simple thing this whole time. Maybe now I can catch some
of that dx Steve L. is hearing. He may suggest otherwise, unless of course
I'm planning on picking up an R8 sometime soon. : ) 73

-Brian

"Stephen M.H. Lawrence" wrote in message


I think Part 15 should be better - enforced.


Yea and the sad part is. Most of these fixes to appliances are cheap to do
when they're being built. A simple cap, bulun, sheilding etc.

--
73 and good DXing.
Brian
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A lot of radios and 100' of rusty wire!
Zumbrota, Southern MN
Brian's Radio Universe
http://webpages.charter.net/brianhill/

EMAIL-
(Hide the $100 to reply!)

I have a Sony Wega 20" in the room adjacent to the computer/radio room. The
interference generated by this tv being turned on (my wife watches it all
the time, unfortunately) is mind boggling, especially on the 41 and 31meter
bands (7 & 9 mhz on my Icom R71A receiver and longwire antenna. What
exactly did you mean when you said you installed a "powerstrip" behind the
tv? The Sony 20" tv is plugged into a hefty surge protector. Plugging into
the wall outlet directly vs into the surge protector outlet strip does not
affect the massive amount of rfi it generates on the aforementioned bands
(wipes them out completely). Any suggestions? Please define what you mean
by "powerstrip behind the tv." Any help would be much appreciated. Thanks.

Dick
Bremerton, WA

"Stephen M.H. Lawrence" wrote in message
nk.net...

"Brian" wrote in message
nk.net...
| Well, it's been a long time coming, but the mystery is solved, and can
you
| believe in the end it was just a TV. I think someone even suggested it
may
| be a television, and I nearly disregarded the idea for it's simplicity.
| Well, it looks like I can finally get back to enjoying my radio as I
haven't
| in a good while. Thank you to everybody for your help and suggestions.
73,
| and now for some good dx.
|
| -Brian

Our large (ish) screen TV wipes out everything from longwave to about
25.200 MHz. I devised a brilliant workaround by installing a powerstrip
behind the TV, to enjoy blessed silence. Other appliances I've known
and hated (for the RFI they generate): Microwaves (even when not
cooking), VCRs (Horrible hash-generators), thermostats, battery chargers,
and almost every PC printer I've ever owned. I think Part 15 should
be better - enforced.

Congratulations, though, on your new - found freedom from the noise beast!

73,

Steve Lawrence
Burnsville, Minnesota


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.817 / Virus Database: 555 - Release Date: 12/15/04

"Jim Leder" wrote in
:

Most newer TVs use switching power supplies and some generate bad RFI
when just plugged in, they don't need to be switched on. Another
source is PC CRT monitors. Same kind of power supply and same kind of
RFI. I have a 17 inch Cybervision on PC #2 in the basement and it
generates enough RFI hash to render much of the AM broadcast band
useless when it's plugged in.

You sure that it is the switching power supply and not the high voltage
circuits? I have a Philips 107T5 (17") that gives interference around 1500
khz and not around 700 khz. I am running in 1024x768 at 85 hz, and if I
change to 75 hz, for example, the interference (a high pitched whine)
moves. The radio is about 4 feet from the monitor. Over 10 feet there is
no interference at all.

Brian wrote:

Thanks Steve. This has really made my day. I even had to message my
girlfriend at work to tell her about it, which is kind of dumb because she
doesn't really care, but she's happy if I am.


So....does she have a sister?





mike

"Brian Hill" wrote in message
...
|
| "Stephen M.H. Lawrence" wrote in message
|
|
| I think Part 15 should be better - enforced.
|
|
| Yea and the sad part is. Most of these fixes to appliances are cheap to do
| when they're being built. A simple cap, bulun, sheilding etc.

Precisely. A handful of ferrite beads, plus conductive silver spray,
has allowed me to eliminate 95% of the RFI from my immediate
listening environment. I think the electronics manufacturers are
engaged in a race to the bottom, in terms of engineering quality of
their collective product.

One of the bright spots on the RFI horizon was the gift of an LCD
monitor from my brother in law (wedding present) a couple of years
ago. Glass CRTs are fast becoming unavailable, and that is one
"solid-state" trend I heartily support.

73,

--
Steve Lawrence
KAØPMD
Burnsville, Minnesota

"If a man wants his dreams to come true then he must wake up."
- Anonymous


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.817 / Virus Database: 555 - Release Date: 12/15/04

"Dick and Judy Tarr" wrote in message
...
| I have a Sony Wega 20" in the room adjacent to the computer/radio room.
The
| interference generated by this tv being turned on (my wife watches it all
| the time, unfortunately) is mind boggling, especially on the 41 and
31meter
| bands (7 & 9 mhz on my Icom R71A receiver and longwire antenna. What
| exactly did you mean when you said you installed a "powerstrip" behind the
| tv? The Sony 20" tv is plugged into a hefty surge protector. Plugging
into
| the wall outlet directly vs into the surge protector outlet strip does not
| affect the massive amount of rfi it generates on the aforementioned bands
| (wipes them out completely). Any suggestions? Please define what you
mean
| by "powerstrip behind the tv." Any help would be much appreciated.
Thanks.
|
| Dick
| Bremerton, WA

Well, Dick, it's basically an extension - cord - box thingy with an "on/off"
switch.
Sadly, I don't want to climb into the back of the TV because it's still
under warranty.

I can definitely commiserate with you, though, because my experience is very
similar
to yours. I found that building and installing a rotatable coax loop did
wonders to
eliminate the noise, due to the fact that the loop allows me to "null" the
noise. I
was considering getting an MFJ antenna "noise canceller," but after building
the loop,
I decided that would be a waste of time.

73,

--
Steve Lawrence
KAØPMD
Burnsville, Minnesota

"If a man wants his dreams to come true then he must wake up."
- Anonymous


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.817 / Virus Database: 555 - Release Date: 12/15/04

Stephen M.H. Lawrence wrote:

One of the bright spots on the RFI horizon was the gift of an LCD
monitor from my brother in law (wedding present) a couple of years
ago. Glass CRTs are fast becoming unavailable, and that is one
"solid-state" trend I heartily support.


It's a step in the right direction, but I'm going to wait. A few years
ago I bought a small laptop with a ten inch screen. Within a few
months, it had five or six dead pixels.

The computer was still completely usable, but seeing those dead spots
started to really bother me. A CRT will either work or not work, plus
the colour rendition in Corel Draw and Photoshop is still superior to
the LCD. That's important to a lot of people

I like the smaller depth of the LCD screen and the much lower power
consumption, but I'll be waiting for a year or two yet before committing.





mike

"m II" wrote in message
news:12Ewd.37$KO5.32@clgrps13...
| Stephen M.H. Lawrence wrote:
|
| One of the bright spots on the RFI horizon was the gift of an LCD
| monitor from my brother in law (wedding present) a couple of years
| ago. Glass CRTs are fast becoming unavailable, and that is one
| "solid-state" trend I heartily support.
|
|
| It's a step in the right direction, but I'm going to wait. A few years
| ago I bought a small laptop with a ten inch screen. Within a few
| months, it had five or six dead pixels.
|
| The computer was still completely usable, but seeing those dead spots
| started to really bother me. A CRT will either work or not work, plus
| the colour rendition in Corel Draw and Photoshop is still superior to
| the LCD. That's important to a lot of people
|
| I like the smaller depth of the LCD screen and the much lower power
| consumption, but I'll be waiting for a year or two yet before committing.
|
|
|
|
|
| mike

Well, if you're handy, conductive spray paint and ferrite beads can be
enormously
helpful - are you experiencing RFI from the CRT?

73,

--
Steve Lawrence
KAØPMD
Burnsville, Minnesota

"If a man wants his dreams to come true then he must wake up."
- Anonymous


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.817 / Virus Database: 555 - Release Date: 12/15/04

"m II" wrote in message
news:oavwd.45673$eb3.3628@clgrps13...
Brian wrote:

Thanks Steve. This has really made my day. I even had to message my
girlfriend at work to tell her about it, which is kind of dumb because
she
doesn't really care, but she's happy if I am.


So....does she have a sister?





mike

Pervert!