[Elecraft] XFIL on K3

[Don Wilhelm]

Robin,

It will work like yours does if you only have one filter configured and 
that filter is in the filter 2 location.  If there is only one filter, 
it must be either the 2.7 or 2.8 kHz width filter.

If you don't know which filters are installed, you will have to 
physically examine them (remove the top cover), determine their width 
and their offsets (if any) and which filter slot they are installed.  If 
you have the subRX installed, you will have to remove it to see the 
filters on the main board, and also lift the cover on the SubRX assembly 
to determine which filters are installed there.

There may be a sticker on the inside of the top cover showing which 
filters are installed in the Main and with the SubRX installed, there 
may be a similar sticker on the top of the subRX cover.

Once you know the filters, you can use either the menu or (easier) K3 
Utility to configure the filters.

With the filters properly configured, yes the selected filter will 
change automatically  as you adjust the width control (or HI CUT and LO 
CUT).  Alternately, you can manually select the filters with the XFIL 
button.

73,
Don W3FPR

On 11/23/2019 1:59 PM, oz6abm at qsl.net wrote:
> Hi,
> 
>   
> 
> I have some questions regarding XFIL on the K3.
> 
>   
> 
> When I look at the display it does not display FL1, and using XFIL tracks through FL2, FL3 and FL4, but never Fl1 ?.
> 
> In the menu I see FL2 BW, FL2 FRQ, FL2 GN, FL2 ON, but nothing for FL1, FL3 and FL4 ?
> 
> Also, when I hold XFIL button down, on say FL2, it says N/A, and it does this for FL3 and FL4 too.
> 
> I read that manually adjusting the bandwidth  and Lo and Hi cuts on the front panel will cause the appropriate FL to be used. However the display sticks on FL2 ?