[Elecraft] K3 CW filtering

[Lee Buller]

Gary,

The K3 is an excellent CW rig as that is what I do about 90 percent of the time...and now mostly on the low end of 40 meters.  I just have the 5 pole 500 Hz filter right now and find no objection at all to the roofing filter.  These filters are not exactly what most people think when you think about a filter.  The roofing filter limits the amount of signal enter the radio...like a roof.  With the DSP type of radio like the k3, the filters are really in the software and I can run all the way down to 200 Hz without to much difficulty.  I usually run about 400 Hz and find that satisfactory for most DX QSOs.  I do have a filter between the ears as reported also by my wife.  

I've wanted to get a 400 Hz 8 pole filter but have not yet had a need for it.  The key to remember is these filters are roofing filters and the "bandwidth" of each mode is set in software as it is a Software Defined Radio.

Lee - K0WA


In our day and age it seems that Common Sense is in short supply.  If you don't have any Common Sense - get some Common Sense and use it.  If you can't find any Common Sense, ask for help from somebody who has some Common Sense.  Is Common Sense divine?

--- On Tue, 11/25/08, Gary Smith <Gary at doctorgary.net> wrote:
From: Gary Smith <Gary at doctorgary.net>
Subject: [Elecraft] K3 CW filtering
To: elecraft at mailman.qth.net
Date: Tuesday, November 25, 2008, 3:05 PM

Hi,

Am readying myself to invest in a K3. 

I am a CW op, rarely on any other mode, (haven't used any other mode 
in over four years).

I chase DX and enjoy the occasional contest but am not a dedicated 
contester. On the other hand, I tend to go 100% into any of my 
endeavours and when I contest, I contest to the best of my abilities.

I currently have an Omni V with a set of Inrad CW filters and find 
them a tad too ringy for my liking though I find the 2.4kHz with the 
250Hz narrow filter in line pretty effective. I find the 250Hz filter 
with the 250Hz narrow filter also selected almost too noisy for my 
pleasure.

Sans ringing, I would love a 50Hz filter but reality says I need 
something wider.

That probably says enough about my CW desires as regards the K3. 

With that, what filter should I go with to maximise my CW experience? 

Thanks,

Gary
KA1J
_______________________________________________
Elecraft mailing list
Post to: Elecraft at mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft    

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/elecraft/attachments/20081125/44598486/attachment.htm