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-   -   Noise canceller advice (https://www.radiobanter.com/shortwave/46305-noise-canceller-advice.html)

Rob Mills November 17th 04 05:49 AM


"starman" wrote in message
...

There were plans in past issues of Monitoring Times and QST for a

homebrew version of the ANC-4.

I've got that article stashed someplace, didn't look real complicated. I
think Far Circuits ( /www.farcircuits.net/ ) has the circuit boards for the
project and they will also supply a copy of the article for an extra buck or
two. RM~




starman November 18th 04 08:28 AM

Rob Mills wrote:

"starman" wrote in message
...

There were plans in past issues of Monitoring Times and QST for a

homebrew version of the ANC-4.

I've got that article stashed someplace, didn't look real complicated. I
think Far Circuits ( /www.farcircuits.net/ ) has the circuit boards for the
project and they will also supply a copy of the article for an extra buck or
two. RM~


BTW- You can elliminate one of the control pots' in the design if you
wind the associated coil with a bifilar winding.


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starman November 23rd 04 07:44 AM

gil wrote:

"0ff_Ramp" wrote in message ...
"mystery" static in my area.... S-9 worth of noise!


What do you (not) know about this noise?


Not sure where its coming from. It ususally starts late morning and
lasts up to midnight, its very much on time every day.


Before you get into noise cancellers, go for a walk around the
neighborhood with a portable radio to locate the noise source. Maybe you
can eliminate it so you won't need the canceller.


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Michael Lawson November 23rd 04 03:19 PM

It wouldn't necessarily surprise me if your source of
noise is the same as mine: a television set. In my case,
it's our main television set, an 8 year old 25" RCA that
I pick up noise from with my outside antenna whenever it's
turned on.

--Mike L.


"starman" wrote in message
...
gil wrote:

"0ff_Ramp" wrote in message

...
"mystery" static in my area.... S-9 worth of noise!

What do you (not) know about this noise?


Not sure where its coming from. It ususally starts late morning

and
lasts up to midnight, its very much on time every day.


Before you get into noise cancellers, go for a walk around the
neighborhood with a portable radio to locate the noise source. Maybe

you
can eliminate it so you won't need the canceller.


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News==----
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100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption

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Volker Tonn November 23rd 04 06:31 PM


Michael Lawson schrieb:
It wouldn't necessarily surprise me if your source of
noise is the same as mine: a television set. In my case,
it's our main television set, an 8 year old 25" RCA that
I pick up noise from with my outside antenna whenever it's
turned on.


The worst noise source I had was a VCR. It was producing noise all over
the shortwave bands even in standby mode.
It took me a while to find it out.....


Michael Lawson November 23rd 04 07:37 PM

Luckily our VCR or our other audio/video equipment
don't radiate anything, but then again, it's bad
enough with just the television.

In our case, the best thing to do is to turn it off. If
the guy's got a neighbor that simply lives with the
televison on most of the day, he might be out of luck
with a regular antenna.

--Mike L.

"Volker Tonn" wrote in message
...

Michael Lawson schrieb:
It wouldn't necessarily surprise me if your source of
noise is the same as mine: a television set. In my case,
it's our main television set, an 8 year old 25" RCA that
I pick up noise from with my outside antenna whenever it's
turned on.


The worst noise source I had was a VCR. It was producing noise all

over
the shortwave bands even in standby mode.
It took me a while to find it out.....






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