Posted by
Lu Romero - W4LT on
Jul 27, 2011; 1:49pm
URL: http://elecraft.85.s1.nabble.com/100-and-50-hz-DSP-filtering-tp6623915p6626213.html
This is why I monitor this reflector. I did not know that
the filter was not cascaded; I assumed it was!
I have also experienced this "issue" as I do equalize on
receive... Now I know the reason why its not an "issue". I
will give it a try this evening and see if it solves the
"problem"
How did I miss this in the manual's "Theory of Operation"
section? :)
-lu-W4LT-
K3 # 3192
------------------------
Message: 12
Date: Tue, 26 Jul 2011 15:10:07 -0700
From: "lyle johnson" <
[hidden email]>
Subject: Re: [Elecraft] 100 and 50 hz DSP filtering
To: "Tommy Alderman" <
[hidden email]>,
<
[hidden email]>
Message-ID: <
[hidden email]>
Content-Type: text/plain; charset="ISO-8859-1";
format="flowed"
You are probably using Rx EQ and have your preferred
sidetone pitch peaked to something more than 0 dB. RxEQ
is not available at these two narrow bandwidths.
Note: It seems that many people believe that the Rx EQ is
an *additional* filter cascaded with the normal DSP
filter. It is not.
In general, if you want to apply RxEQ shaping in CW mode,
I recommend that you set your preferred sidetone pitch to
0 dB and use cuts on either side, or for whatever shaping
you prefer, and not use any peaking above 0 dB. That will
avoid this problem.
73,
Lyle KK7P
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