[ICOM] Icom rigs and atmospheric noise

Clark Savage Turner csturner at kcbx.net
Sun Aug 22 11:30:35 EDT 2004


Hi John -

Can you record the audio and send it to me?  I can listen and see if it 
matches what I hear out on the left coast in a rural area.  I have 
fought with power line noise for some time and I am a real proponent of 
the "noise canceller" now :-)  Under many conditions, it works very 
well.

What is your QTH?  If there is regular storm activity within 500 miles 
of you, you need to expect a regular atmospheric noise level (I had 
such a thing in Pennsylvania, I just lived with it and used narrow 
filters to dig out signals.)

Does the noise compare with other receivers?  Can you hear the same 
(weak) signals despite the "sound" of the noise?  If you can, I would 
not worry about it, I find the IF and audio sections of many receivers 
producing annoying "noise" to my ears that does not interfere with my 
ability to copy weak signals (though it can produce fatigue.)

Email me off line or we could even speak on the phone about the power 
line noise, I have gotten good at this one, hi hi.

Clark
WA3JPG


On Aug 22, 2004, at 7:55 AM, John Geiger wrote:
>
> I don't doubt the receiver is very quiet internally.
> Have already tried that.  I am wondering if I am
> seeing true atmospheric noise (unfixable), or some
> sort of man made noise that needs to be fixed.
>
(post edited for brevity)



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