"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 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


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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

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

"m II" wrote in message
newsavwd.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!

Brian Hill wrote:
"m II" wrote in message
newsavwd.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!



Wanting to be introduced to the sister of a SAINT who is happy because
YOU are happy make one a pervert? Having a selfless, caring mate like
that would be a true blessing and one could certainly hope these
traits would be present in a sibling of this paragon of womanly virtues.





mike

"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!)

"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


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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


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