KNB2 Noise Blanker - doesn't?

[Fred (FL)]

I built, tested and installed KNB2 Noise Blanker,
in my K2 # 5422 - on 6 May 2006.

Still in the SWL mode, awaiting a stealth antenna, and
having gotten my K2 # 5422 aligned and KSB2 installed
- I've only practiced with using this
KNB2 Noise Blanker on noisy band (CW and SSB)
conditions.

The operation of the KNB2, in contrast to NB's on
various IC-706MKIIG and IC-7000 rigs I've recently
owned - doesn't seem effective at all.  In fact I'm
doubting it does anything?

Today, a large propane truck sat outside, 50 feet
away from this K2 rig - plenty plenty of ignition
noise.  Clearly, on 40m CW ignition noise - none
of that noise is reduced or eliminated by my
new KSB2 at all?

Aside from the simple hi/lo threshold settings -
is there any "alignment" tweaking which I could
do - to make this KNB2 come alive, and work?
And on my KNB2, the hi/low setting don't do
anything either?

Help & 73's
6/15/2006
Fred N3CSY
K2 #5422
KSB2 - 6 May 06
KNB2 - April 06
Dimple


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[John E. Reiser]

Hi Fred,

My KNB2 works superbly on a certain kind of noise that I only get once in a
while.  I don't know what causes it, but it sounds like frying a big pan of
bacon.  It's a nasty crackling sound.  The KNB2 takes it out completely.
I'm building my second K2 right now, and of course, it will have a KNB2.

Hope this helps.

73,

John, W2GW


----- Original Message -----
From: "Fred (FL)" <[hidden email]>
To: <[hidden email]>
Sent: Thursday, June 15, 2006 9:49 AM
Subject: [Elecraft] KNB2 Noise Blanker - doesn't?

>I built, tested and installed KNB2 Noise Blanker,
> in my K2 # 5422 - on 6 May 2006.
>
> Still in the SWL mode, awaiting a stealth antenna, and
> having gotten my K2 # 5422 aligned and KSB2 installed
> - I've only practiced with using this
> KNB2 Noise Blanker on noisy band (CW and SSB)
> conditions.
>
> The operation of the KNB2, in contrast to NB's on
> various IC-706MKIIG and IC-7000 rigs I've recently
> owned - doesn't seem effective at all.  In fact I'm
> doubting it does anything?
>
> Today, a large propane truck sat outside, 50 feet
> away from this K2 rig - plenty plenty of ignition
> noise.  Clearly, on 40m CW ignition noise - none
> of that noise is reduced or eliminated by my
> new KSB2 at all?
>
> Aside from the simple hi/lo threshold settings -
> is there any "alignment" tweaking which I could
> do - to make this KNB2 come alive, and work?
> And on my KNB2, the hi/low setting don't do
> anything either?
>
> Help & 73's
> 6/15/2006
> Fred N3CSY
> K2 #5422
> KSB2 - 6 May 06
> KNB2 - April 06
> Dimple
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> 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
>

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