Posted by
WILLIS COOKE on
Apr 29, 2009; 9:14pm
URL: http://elecraft.85.s1.nabble.com/K3-Noise-Reduction-tp2742986p2743376.html
David, I am a mostly CW operator with only an occasional SSB contact or contests. I find that I can copy signals on my K3 that I cannot copy on my TS-850, but only a few very weak ones. The most effective control against noise that I have found is the Width control and in 160 and 80 meter very noisy contacts I find myself at 50 or 100 Hz width. I find that the signals all sound noisy unless they are very strong, above S9 which are rare in today's propagation. I can make the signal sound a bit less noisy with the NR, but at the expense of copy ability, especially with code speeds above 20 wpm. I have never found the NR to be useful for a CW contact. SSB contacts, even with a setting of F1-1 are distorted enough to be difficult to copy. For noisy SSB contacts turning off the AGC and reducing the RF Gain seems to be the effective tactic.
I have been reading what people have to say on this forum and I get further confused about how to properly set up the AGC, NB and NR to make them work to my advantage. I find both of my 20 year old Kenwoods more pleasant to use (a TS-440 and TS-850) but I can work signals with the K3 that I can't work with the others. The NB is more effective with either of the Kenwoods.
I still think I am doing something terribly wrong with the K3 and I need more contacts to figure it out. It seems that only 2,000 or so QSOs is not enough. I need more experience with Ham Radio, perhaps. Fifty three years does not seem enough.
Willis 'Cookie' Cooke
K5EWJ
--- On Wed, 4/29/09, David Gilbert <
[hidden email]> wrote:
> From: David Gilbert <
[hidden email]>
> Subject: Re: [Elecraft] K3 Noise Reduction
> To:
[hidden email]
> Date: Wednesday, April 29, 2009, 1:41 PM
> Is most of this discussion on NR in the K3 from users who
> would like to
> improve the SNR on louder signals for easier listening in
> noisy
> conditions?
>
> I get the impression we have people expecting different
> things from
> these controls.
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