RE: [Elecraft] W1 and QRN

[Chris Craig]

Jon,

I can't help you much other than the fact that mine does not do this.

My setup is the same as yours.

K1-- about 18 inches of cable --- W1  --- 18 inches of cable--- ant. tuner.

I replaced the W1 with a coupler and no change. Try swapping out cables or a 
coupler as previously posted. I can't see any reason the the W1 would pick up 
white noise on or off.

Note: I only checked my on 40 meters.

HTH, Chris, KE6GS /XE3

K1 - #2481
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RE: [Elecraft] W1 and QRN

[Darwin, Keith]

Do you have a BNC coupler such that you could remove the W1 while still
leaving all the BNC cables in place?  Have you tried placing the W1
between the rig and a dummy load to see if the noise level comes up
compared to the dummy load alone?

- Keith N1AS -
- K3 711 -

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jon Perelstein
Sent: Wednesday, July 09, 2008 7:45 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] W1 and QRN

I recently built the W1 Wattmeter/SWR Bridge to use in tuning my
antenna.  

I've noticed that whenever I have it in-line between my K1 and the
antenna, I hear a dramatic increase in receiver noise level.  The
S-meter on the K1 goes from 2 bars to 4 bars.  This happens whether I
have the W1 turned on or turned off, and happens on both 20 and 40
meters.

The only other thing I can say is that I have the W1 connected to the K1
by a 3' BNC to BNC cable.  The cable is coiled to sit on my desk.  I
have tried stretching out the cable, but it has not reduced the noise.
Similarly, I have tried moving the W1 to various locations on my desk
and off the desk without any noticeable improvement.

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