[Elecraft] K3 Auto Notch distortion

[Eduardo González]

Several months ago I did a commentary about autonotch noisy effect and
compare it with autonotch of cheapy radios. Responses I got was elecraft is
working on solution, but time have passed and all those months autonotch is
practically unusable. I'm sure that problem is only a aspect of software
optimization

Edu (yy4gmj)
On Mar 12, 2013 6:02 AM, "Bill Clarke" <bill at w2blc.net> wrote:

> It is more than barely noticeable or you would not have mentioned it!  I
> too have noticed it and it really bugs me - very unlike the fine auto-notch
> filters found on the Kenwood, Icom, and Yaesu rigs. The nay sayers in this
> group will quickly tell you they don't hear it or give excuses for its
> existence. Don't buy into it - the distortion does exist and it is very
> annoying. To me, there is no excuse for the notch filter distortion to
> exist on the expensive K3 - when it does not exist on $1000 rigs.
>
> As a work around, I have found the following settings go a long way to
> eliminate the distortion. Be advised - these settings are for armchair copy
> on 75, 40, and 160 meters. I don't know if they would do well for
> contesting or DXing - of which I do neither.
>
> **K3 settings (Config Menu):
>     AGC DLY - NORM
>     AGC HLD - 0
>     AGC PLS - NORM
>     AGC SLP - 4
>     AGC THR - 12
>     AGC F -       120
>     AGC S -       20
>     Shift -          1.4
>     Width -        2.7
>     RF Gain -    90
>     ATT -           ON
>     RX EQ         1         -2
>                          2        0
>                          3        +9
>                          4        +12
>                          5        +11
>                          6        +14
>                          7        -16
>                          8        -16
>
> Be sure to read the "Noisy K3" section on http://www.w3fpr.com/ -
> excellent information!
>
> The disclaimer:  Your mileage for the above settings may vary - depending
> upon speaker selection, personal preferences, and your hearing acuity.
>
> Note:  I made all of my settings by hand, using the K3 menus. I did NOT
> use K3 EZ as that program will sometimes upset the AGC settings.
>
>
> **
> ______________________________**______________________________**__
> Elecraft mailing list
> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
> Post: mailto:Elecraft at mailman.qth.**net <Elecraft at mailman.qth.net>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>