[Elecraft] How to use the PX3's noise blanker

[Ron D'Eau Claire]

To clarify Wayne's comment, the NB is present *only* until you leave the
MENU. Nb En is a "toggle": tap the knob to switch between NB Off and NB On.

As he said, you will see no difference when no noise is present or if you
have the Noise Blanker level set too high. 

73, Ron AC7AC

-----Original Message-----
From: Wayne Burdick [mailto:n6kr at elecraft.com] 
Sent: Wednesday, October 1, 2014 9:29 AM
To: John Fritze
Cc: elecraft at mailman.qth.net
Subject: How to use the PX3's noise blanker

Hi John,

When you turn the NB on, you should see an "NB" icon in the upper-right
corner. 

The menu also has a setting for NB level, which you may need to adjust. In
my case I've assigned both NB and NB level to FN switches so I can change
the settings very quickly. 

With the NB turned on, you will observe one of three things in the PX3's
displayed spectra:

1. No change (because any noise that's present is too low in amplitude to
activate the blanker)

2. A reduction in "jumping" of the display (because the NB is having a
beneficial effect on the noise)

3. An *increase* in "jumping" of the display (because the NB level is set
too aggressively)

Some experimentation with settings may be required. Note that the KX3 also
has an NB function, with a similar level adjustment, but noise that affects
the audible output of the KX3 may not affect the visual output of the PX3
and vice-versa. Thus they are independent settings.

Wayne
N6KR


On Oct 1, 2014, at 5:34 AM, John Fritze <fritzejohn at gmail.com> wrote:

> I am thoroughly impressed with my new PX3 but was wondering, when I go 
> into settings and activate the NB, nothing happens.  Is it not implemented
yet?
> I am running the latest BETA firmware.
> 
> --
> John Fritze Jr
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