[Elecraft] New to me K2 question. Filter performance

[Tom Hammond]

Tom:

YOur settings appear to be pretty close to that which I would expect for 
most K2s... the absolute values (freq or DAC count) depend upon the center 
freq. of the filter itself, but what you are showing is, I would say, 
pretty representative of what they should look like. At least everything is 
on the proper side of filter center AND the WIDE filter valus is quite a 
bit greater than the differences between FL2 and FL3 (and FL4), so that 
looks correct as well.

Looks good to me.

Thanks for your info.

73,

Tom Hammond     N0SS

At 05:33 PM 1/11/04, Tom Arntzen LA1PHA wrote:
>To: "john" <johnmb@nc.rr.com>; <elecraft@mailman.qth.net>
>
> > >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
>
> > First, ALL four of the CW REV BFO settings are set to the WRONG side of 
> the
> > 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 far 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 NORM , 
>and I'm using same BW in all filters as 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