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" <[EMAIL PROTECTED]>
To: "Crafters" <[email protected]>
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)
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.516 / Virus Database: 269.21.1/1297 - Release Date: 2/25/2008
9:22 AM
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
