[Elecraft] [K3] Noise Reduction Recording

[Sandy]

SOunds like plain old "white noise" to me.  I get plagued with the same 
stuff during the day sometime.  What is the difference in noise level with 
the antenna connected and disconnected?

73,

Sandy W5TVW
----- Original Message ----- 
From: "David Ferrington, M0XDF" <M0XDF at Alphadene.co.uk>
To: "Crafters" <Elecraft at mailman.qth.net>
Sent: Monday, February 25, 2008 2:47 AM
Subject: [Elecraft] [K3] Noise Reduction Recording


> I'm still having trouble determining if what I hear is noise that NB 
> should
> get rid of. This is because I'm a relatively new Ham without the 
> experience
> to know what I'm hearing.
>
> So I have made a recording on the noise and it is available from
> <http://homepage.mac.com/davidferrington/FileSharing2.html>
>
> I have recorded 3.740MHz in 5 second tracks with a tone between each 
> change
> of NR setting, viz:
>    5 seconds of no NR, 200mS tone @ 700Hz
>    5 seconds of NR F1-1, 100mS tone at 1400Hz
>    5 seconds of NR F1-2, 100mS tone at 1400Hz
>    5 seconds of NR F1-3, 100mS tone at 1400Hz
>    5 seconds of NR F1-4, 200mS tone at 700Hz
>    5 seconds of NR F2-1, 100mS tone at 1400Hz
>    etc.
>
> I have found no NB setting that affects this, I can possibly hear a very
> slight change, but it does not cancel the noise.
> I can do the same for the NB settings if people wish.
>
> I would appreciate some feedback on this please, is this just broadband 
> hash
> in my urban neighbourhood from er, broadband and wall warts etc?
>
> Mail me off list if you'd like me to mail you a copy of the file direct.
>
> 73 de M0XDF / K3 #174
>
> -- 
> Why should I fear death? If I am, death is not. If death is, I am not. Why
> should I fear that which cannot exist when I do?
> -Epicurus, philosopher (c. 341-270 BCE)
>
>
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