[Elecraft] K3 Filter Bandwidth Menu Choices

[K4IA at aol.com]

The natural approach to setting the roofing  filter bandwidths in the menu is 
to match the setting to the actual  filter.  I don't think that is the best 
use of the roofing filter.  I  want the narrow roofing filter to kick in a 
little earlier than the matching DSP  setting.

I have set the filter 2 (actual bandwidth to 500hz) bandwidth to  1.00 in the 
menu.  That way the narrow roofing filter kicks in when you  dial the 
bandwidth down to below 1khz instead of waiting until you get below  500hz to kick 
in.  

You get the benefit of the narrow roofing filter  without being so narrow in 
the DSP that you can't hear someone a little off  frequency.  If that seems 
too wide, you could set the roofing filter to  kick in at 750hz.  Again, the 
beauty of the K3 is versatility.   

I can see a similar use in SSB where you would want a narrower roofing  
filter than the DSP setting.  You cut down on the crud but the skirts of  the 
roofing filter are wide enough, you don't lose much fidelity.  You  could easily 
listen through a 1.8khz roofer with the DSP at 2.1khz.   

k4ia
"Buck" K3 #101
Fredericksburg, VA  




**************Biggest Grammy Award surprises of all time on AOL Music.     
(http://music.aol.com/grammys/pictures/never-won-a-grammy?NCID=aolcmp003000000025
48)