[Elecraft] K3 NR (was making K3 RX audio like K2)

Jeff Wandling W7BRS jw at w7brs.com
Thu Nov 20 12:00:20 EST 2008


Down in the valley where the less-than-DXCC serfs eke out their lives 
hoping to make another new-one, I for one just enjoy the capability to 
adjust the receiver to new filters or shifting the cut-off better than the 
YaeKenCom radio I was used to using.

If I were to re-read the K3 operator manual (and a fine manual it is) I 
would simply add more trivia to my brain as to what the capabilities are.

But what I'd really enjoy sitting down with is a K3 for Dummies guide to 
using the enhanced receiver capabilities of the K3 over the lower class of 
radios.  I'm stepping up from a FT-897D to the K3.  I can tell the 
difference.  It's obvious.  But, I'm sure I'm missing out on more -- and 
that's entirely my own project to find out.  I am looking forward to it!

Here's the other proof of the difference.  I'm getting for the first time 
comments about the audio quality on the K3 -- before they even know what 
rig it is.  Never heard a word like that on the FT-897.

I never operated the big$ rigs like 7#00 or pro{123}, or ft/ts-2000 to 
compare.

-jeff



--
Jeff Wandling DE W7BRS K3 #2105     http://w7brs.com/k3
jw at w7brs.com

On Thu, 20 Nov 2008, GW0ETF wrote:

>
> Vic,
>
> You probably won't be using NR at these narrow bandwidths anyway; it's been
> explained before by Lyle and quoted in the message in this thread from Bill
> W4ZV:
>
> "NR is rarely useful if the bandwidth is narrow. If you set your CW width
> to 400 Hz or less, for example, there is no point in running NR *unless* you
> want to use it as a sort-of "smart squelch."...."
>
> Thinking about it I never feel the need to use NR when the bandwidth is
> cranked right down so it sort of makes sense....
>
> 73,
>
> Stewart Rolfe, GW0ETF
>
>
> Vic K2VCO wrote:
>>
>> GW0ETF wrote:
>>
>>> I find RX EQ settings have a significant effect on NR; I have boosted the
>>> 400-800Hz channels a few dB and that causes the cw note to appear to
>>> 'jump
>>> out at you' under NR along with reduction in the noise. Can't remember NR
>>> settings but it's not extreme and I aim for least echoing and character
>>> softening...
>>
>> This is not the best approach because of the following: when the 50 and
>> 100 Hz DSP filters are enabled the RX EQ is disabled (I forgot the
>> reason for this, but Lyle explained it to me).
>>
>>
>
> --
> View this message in context: http://n2.nabble.com/K3-NR-%28was-making-K3-RX-audio-like-K2%29-tp1556080p1557856.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
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