[Elecraft] Re: Setting up CW filters for the Tonally Challenged

Mon Jan 20 16:46:00 2003

Martin,

You email came as I was about to advocate Jerry's method myself. 

I have never quite felt that I got the filters right for my K2, and have
always been a bit unsure whether they were done right. About a week ago,
I read through the different procedures and found KR5L's procedure. It
took me some time to get the idea, but when I finally got it, it made
adjustment of the filters something that was well defined and with only
one solution per filter bandwidth. Your excellent addendum to his
write-up, makes it much easier to use this method with the improved
firmware.

73
Sverre LA3ZA
www.qsl.net/la3za

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Martin AC6RM
> Sent: 20. januar 2003 12:57

>    17 July 1999, KR5L (Jerry Henshaw, K2#0015) authored a 
> most excellent web page document entitled "Setting up your CW 
> filters for the Tonally Challenged."  It can be found on the 
> Elecraft web site at the following
> URL: 
> http://www.elecraft.com/Apps/new_fil_docs/FilterSetUp.html.  
> I used Jerry's methodology to adjust and center my CW filters 
> in January of 2003 after I had completed my basic K2 (#3021). 
...
> 
>    Since Jerry's document was written, there have been some 
> changes to the firmware in the K2 -- one of which simplifies 
> the adjustment procedure even MORE than how Jerry's procedure 
> outlines.  The HUGE difference is that you now have direct 
> access to the BFO frequency for adjustment and display in the 
> CAL FIL function.
> 