[Elecraft] Filter not sticking

[Don Wilhelm]

Larry,

If I may suggest --
Stop using the XFIL button.  For voice modes, set the filter control 
knobs to LO Cut/Hi Cut.
Use Hi Cut to set the upper end of the audio bandpass and Lo Cut to set 
the low end.  The filter center will then be automatic and the filters 
will switch in and out automatically following the filter width.

You will find that you can only cut the low end by up to 300 Hz or so 
and maintain intelligibility.  With the HI CUT, you can cut a lot and 
still maintain an intelligible signal, even though it will loose its 
individuality.

You may find it easier to use a macro to change the ESSB menu entry ON 
and OFF, then you could manage the same thing using the PF1 or PF2 
button -- I do not have a macro to do that so you would have to study 
the Programmer's Reference to accomplish that.

BTW, the transmit will be full width through the chosen filter - the 
filter knobs control only the received width.

73,
Don W3FPR

On 1/11/2014 7:39 AM, Larry Wassmann wrote:
> Please excuse me people because I am very new to the Elecraft world. Just got my K3 7890 on the air and love it so far with the following except. Yes there is always an except.
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> I have the following filter in my rig. 6kHz, 2.7kHz and 400 Hz for CW. I am one of the ESSB guys but I am also a DXer. I have worked them all on the number 1 ARRL DX Honor roll so I don’t want my rig to just do ESSB audio. I enjoy CW as well. SOOOO here is my problem and it is probably my fault because I don’t understand the K3 architecture yet.
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> When I have my 6kHz filter in line, all is well. Band width is 4K top at 4K bottom at 0.00 center frequency is 2.00. As long as I stay there all is well. I can narrow down my receive and transmit band width by turning the HI/Width knob counter clockwise and narrow it down that way.
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> But if I want to use the XFIL to select my second filter the 2.8kHz filter it will go down to a band width as it should and all is well. Here is the problem. When I do an XFIL back to the 6kHz filter it has now a center frequency of 1.5 and the band with is now about 3.5K. It does not remember how I had it set up and I have to manually reconfigure the filter back to how I want it.
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> It would be nice if I could be talking to my friends at maybe 4K and if some
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> DX comes on the band I would like to pop to my 2.8kHz filter, work the station, the go back to my normal chat setup without having to reconfigure it.
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> Now have any of you who have a 6kHz filter in position 1 and a 2.8kHz filter in position 2 test and see if your rig stays at 4K with a center frequency staying where you put it as you go back and forth? If yours does and mine does not, maybe there is something wrong with my rig or firmware.
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> Any help here? Thanks
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