In article ,
Ron Baker, Pluralitas! wrote:

I still hear some low level noise spaced every
62 kHz or so throughout the HF band.
It is not in my house but it might be in
the neighborhood.
Some day I'll get a directional antenna and
portable receiver and track it down.

A VGA display running at one of the lower res 31 kHz horizontal scan rates.

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)

"Mark Zenier" wrote in message
...
In article ,
Ron Baker, Pluralitas! wrote:

I still hear some low level noise spaced every
62 kHz or so throughout the HF band.
It is not in my house but it might be in
the neighborhood.
Some day I'll get a directional antenna and
portable receiver and track it down.

A VGA display running at one of the lower res 31 kHz horizontal scan
rates.

Interesting idea.
But I've never noticed the noise change character.
One would think that a VGA display would be
turned off occasionally.

The noise is unchanged even if my monitor is
unplugged and every circuit breaker in the house, except
for that of the radio, is switched off.

If it is from a display it would have to be from
a defective one. Every display has a horizontal
in the tens of kHz range. We are not inundated
with display noise.

--
rb

In article ,
Ron Baker, Pluralitas! wrote:

"Mark Zenier" wrote in message
...
In article ,
Ron Baker, Pluralitas! wrote:

I still hear some low level noise spaced every
62 kHz or so throughout the HF band.
It is not in my house but it might be in
the neighborhood.
Some day I'll get a directional antenna and
portable receiver and track it down.

A VGA display running at one of the lower res 31 kHz horizontal scan
rates.

Interesting idea.
But I've never noticed the noise change character.
One would think that a VGA display would be
turned off occasionally.

The noise is unchanged even if my monitor is
unplugged and every circuit breaker in the house, except
for that of the radio, is switched off.

If it is from a display it would have to be from
a defective one. Every display has a horizontal
in the tens of kHz range. We are not inundated
with display noise.

I've noticed that the spurs from CRT display horizontal drive usually
peak at a frequency spacing of twice the scan rate.

Another possible is a compact fluorescent lamp.

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)