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-   -   Constant noise around 2 kHz (https://www.radiobanter.com/shortwave/119648-re-constant-noise-around-2-khz.html)

Frank Dresser May 25th 07 03:48 PM

Constant noise around 2 kHz
 

"?ish" wrote in message
oups.com...
Hello all,

Why does SW radio comes up with noise the moment I dial beyond AM. I
have tried tuning with several radios (including Sony 2010) and for
some reason noise level seems to increase around that band. I tried
with both AC adapter and plain old battery.

Any ideas?

TIA


Most portables switch from a ferrite antenna for MW-LW reception to a whip
antenna for SW. The whip antenna is more sensitive to electrical noise.

It's also possible you have a local noisemaker which starts up around 2 Mhz.
In my case, I have several radios which work with wire antennas only and I
don't have any such sharp peaks in the noise.

Frank Dresser



Telamon May 26th 07 07:37 PM

Constant noise around 2 kHz
 
In article ,
"Frank Dresser" wrote:

"?ish" wrote in message
oups.com...
Hello all,

Why does SW radio comes up with noise the moment I dial beyond AM. I
have tried tuning with several radios (including Sony 2010) and for
some reason noise level seems to increase around that band. I tried
with both AC adapter and plain old battery.

Any ideas?

TIA


Most portables switch from a ferrite antenna for MW-LW reception to a whip
antenna for SW. The whip antenna is more sensitive to electrical noise.


Snip

You got it right there Frank. At least someone is thinking.

--
Telamon
Ventura, California


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