[Elecraft] Re: Key click Mod Kit?

Fri Dec 12 14:14:01 2003

Hi Dave,

The K2 CW keying bandwidth is as clean or cleaner out of the box than most HF 
rigs on the market, including the popular FT1000MP-V. Most commercial ham rigs 
ship with cw keying bandwidths between 1 kHz and 2.5 kHz. These keying (click) 
artifacts are usually only discernible when you are -very- strong at the 
receiving stations location, and if they tune off your frequency a kHz or so.

That said, a some contesters have been looking at narrowing the CW keying 
bandwidth on a number of rigs, including the MP and K2. I believe there is a 
mod for the MP, but it has not been incorporated by the manufacturer..

Along those lines we have also looked at it and found a simple way to modify 
the K2's CW rise/fall times (which are already pretty good) to reduce the 
keying bandwidth to much less than a kHz.

We are in final field test of this mod now and will be posting it shortly. I 
can't say if or when it will become part of the K2 kit, since some operators 
prefer the current K2 keying waveform at high CW speeds, but we will make a 
low cost mod kit available for those that want it in the next couple of weeks.

73, Eric  WA6HHQ

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[email protected] wrote:

> Looking at the K2 keying envelope at the ARRL review, I see about a 5 ms rise time. 
 >This shouldn't produce excessive key clicks. What's up? And, I ordered a K2 kit
 > this week (not yet shipped- hurry!)- will it have the key click mod included?
> 
>    Dave WX7G