[Kenwood] kenwood ts-870

Sat, 18 Jan 2003 21:51:09 -0500

Typical power line noise frequency is too high for a NB circuit to work on.
----- Original Message -----
From: "k0ckdennis" <[email protected]>
To: <[email protected]>
Sent: Saturday, January 18, 2003 9:30 PM
Subject: [Kenwood] kenwood ts-870

Hello reflectees;

Here's an interesting scenario.  While running some antenna tests this
evening on my 4 RX antennas I noticed the following condition when I
switched the NB on and off.

While the noise on the dipole is running around S6, NR is OFF, AGC setting
is manual and set at 3 o'clock position, NB is OFF..  Upon switching the NB
ON, the noise rose to S9.

I looked and examined this several times and saw the same thing every time.
Since the first 18 menu settings either control or effect the receive
portions and the DSP settings, I will give those menu settings at this time.

2 = 7
3 = 12
4 = 14
5 = 8
6 = 1
7 = 1
8 = off
9 = on
10 = off
11 = off
12 = on
13 = on
14 = 2
15 = 17
16 = 0
17 = 0
18 = on

Has anyone else seen this scenario before?   Can anyone explain what is
happening?

I thought the NB was supposed to reduce the noise level---not raise it.

I seem to have a constant noise level of S6-S9 24/7/365..................I
am currently working with the local power company to resolve the noise
problem.  All of my detection sources, checks and tests point to a main
power line pole directly in front of the home with a pole pig/transformer on
it.  15 feet away from the pole in a 360� parimeter there is no sign of
noise on an AM receiver.  Get directly underneath the transformer 3' from
the pole and rotate in a 360� circle and the noise is identical to that on
the 870.  The power company doesn't think or feel that this is where the
noise is comming from.

Anyone with any ideas???????????????????????

Dennis  K�CKD in Iowa

--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
- - -

Your moderator for this list is:
Larry Wilson KE1HZ [email protected]

_______________________________________________
Kenwood mailing list
[email protected]
http://mailman.qth.net/mailman/listinfo/kenwood