[Elecraft] Musings on Noise Reduction

[Bill W5WVO]

It might be instructive to compare what AGC settings in the configuration
menu Roger and Lee are using. Might this be involved in the drastically
different subjective experiences reported?

Bill W5WVO
  ----- Original Message ----- 
  From: Roger Marrotte
  To: 'Lee Trout'
  Cc: elecraft at mailman.qth.net
  Sent: Sunday, December 07, 2008 4:07 PM
  Subject: RE: [Elecraft] Musings on Noise Reduction


  Lee,

  Sorry to say that I've had the exact opposite experience.  I haven't had a
K2 for a few years.  I've had a K3 since July.   I worked some in the 160m
contest this weekend and with NR on I was able to remove just about all the
noise on the band and hear stations way way down in the noise.  I never had
that experience with a K2 and I've used three different K2s.  What I
experienced this weekend with my K3 was just phenomenal.  I worked about a
dozen DX stations some as far out as the middle east.  Without NR I wouldn't
have heard them at all.  I not sure why we have had such different
experiences.  I didn't have a hard time finding a NR setting that worked.
On occasion I would hear some band noise but most of the time it virtually
went away with the NR on.  I use a full size 160m dipole up about 70'.  It's
the same antenna I used with the K2s.  Perhaps if you were using a vertical,
the noise was more severe or just different.

  Roger, W1EM



----------------------------------------------------------------------------
--
  From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Lee Trout
  Sent: Sunday, December 07, 2008 5:51 PM
  To: elecraft at mailman.qth.net
  Subject: [Elecraft] Musings on Noise Reduction


  John:  I agree:  The noise reduction on the K3 is poor.  To my ear, all 16
settings introduce distortion while providing minimal noise reduction.  And
yes, I have played around with rx eq settings.  My little Kenwood 480 has
much better N/R than the K3.

  The N/R is my only major complaint about the K3.   I hope a firmware fix
soon.

  73 all,  Lee (K9CM)



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