K3 narrow filters

[Ron Foster]

Does anyone have much experience using the 200/250 hz filters? I am trying to decide between the two and I'd like to have the performance of the 200 but not if it has noticably more ringing than the 250.
   
   - Ron, W2RIP
_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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

[wayne burdick]

Ron,

I haven't heard any ringing at all in our 200-Hz filter. It's quite a
bit narrower than the 8-pole 250-Hz filter down to -40 dB or so, and
it's the filter I used about half the time for CW and nearly all the
time for narrow data modes. The 8-pole filter has steeper skirts, as
you'd expect. But the DSP provides the ultimate attenuation anyway.

73,
Wayne
N6KR


---

http://www.elecraft.com

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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

[Ron Foster]

Thanks for such a quick reply Wayne. I was headed for the 200. Sounds like that's the right choice.
   
  - Ron

wayne burdick <[hidden email]> wrote:
  Ron,

I haven't heard any ringing at all in our 200-Hz filter. It's quite a
bit narrower than the 8-pole 250-Hz filter down to -40 dB or so, and
it's the filter I used about half the time for CW and nearly all the
time for narrow data modes. The 8-pole filter has steeper skirts, as
you'd expect. But the DSP provides the ultimate attenuation anyway.

73,
Wayne
N6KR


---

http://www.elecraft.com


_______________________________________________
Elecraft mailing list
Post to: [hidden email]
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