[Elecraft] New to me K2 question. Filter performance

Sun Jan 11 18:32:00 2004

----- Original Message -----=20
From: "Tom Hammond" <[email protected]>
To: "john" <[email protected]>; <[email protected]>
Sent: Sunday, January 11, 2004 10:26 PM
Subject: Re: [Elecraft] New to me K2 question. Filter performance

>=20
> >For CW Norm:     CW Rev
> >
> >FL1     113     156
> >FL2     142     142
> >FL3     138     138
> >FL4     136     136
> >
> >Center Frequency by the "ear" method described below is 144-146
>=20
> First, ALL four of the CW REV BFO settings are set to the WRONG side =
of the=20
> filter. Their BFO frequencies (DAC values) should be ABOVE 146.

Hi John and Tom.
I saw the subject and tested my K2 3829.
My dac-settings is as follows:
FL1    116    160
FL2    106    141
FL3    101    141
FL4    098    136

As I can see from John's K2 fl2-fl4 filters are in the wrong side of =
passband in cw-norm mode.
My radio is so fare basicly set up after the manual with just some =
changes 1-3 dac-counts up or down.
Also in cw-rev mode the radio switch passband on dac-count 140 or lower =
in fl1 and 117 and lower in fl4 leaving fl2 and fl3 somewhere between.
In these settings I don't have changes in pitch between norm and rev , =
and I'm using same BW in all filters as John.
John!
As a test you can try to enter cal-fil and switch to fl2. Press BAND to =
see dac-count and turn vfo to a lower count.
Listen to check if you're changing sideband.
I'm sure you do.
For this test you must have the radio in CW-norm since I think that's =
where the problem is.
What do you think Tom?
Hope this helps.
73 de LA1PHA Tom

>=20
> Additionally, I'm pretty certain the DAC value for CW NORM FL1 (OP1) =
is too=20
> low as well. the other three CW NORM values are probably OK, but =
you'll for=20
> certain know once you get into them with Spectrogram.
>=20
> Obtain a copy of Spectrogram (I can provide a copy of the last =
Shareware=20
> version which was not 'crippled' after a certain period of time, if =
you=20
> can't find out on the web), and re-do the alignment.
>=20
> 73,
>=20
> Tom Hammond     N0SS
>=20
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see: =
http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm
> 