[Elecraft] K3 Audio, SSB and CW.

[ab7r at cablespeed.com]

Mic wiring info will be on the FAQ this evening.

-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065

On Tue Sep 18 11:26 , Don Rasmussen  sent:

>One of the first things that will happen upon the
>release of the K3, is someone will connect a D104 to
>it. ;-)
>
>This can be the worst thing for a radio, or a very
>good thing depending on how it is connected. If one of
>
>the beta's has connected a preamplified D104 to the K3
>I'd like to know what is the specific wiring and that
>would be a good thing for the K3 operational FAQ.
>
>As for CW receive audio, I agree that DSP radios often
>sound "strange" as compared to analog radios for a few
>reasons.
>
>The IC756Pro has a lower frequency "rumble" than you
>would hear with respect to band noise on an analog
>radio. The 500hz DSP filter has a very "hard" skirt
>noise as compared to a 500hz crystal filter it's
>fatiguing. K3's "context filtering" mode should be
>very good for this. 
>
>Then there are AGC differences, the 756pro
>is never quiet when the AF gain is turned up. It's a
>radio that's better (on CW) to be played at lower AF
>levels through walkman style headphones. 
>
>The DSP only Argo V I has none of these
>characteristics, and although it's prone to strong
>adjacent signal AGC pumping, is a much kinder
>implementation of DSP in my experience. 
>
>The adjustable AGC on the K3 will be the biggest
>problem solver in my estimation, I can't wait to hear
>it. 
>
>Lastly DSP radios sometimes will add artifacts to what
>you would hear on an analog setup, unusual sounds of
>short duration in the receive audio (see Rob
>Sherwood's
>Dayton presentation on his website) and Wayne has gone
>the long mile to ensure that this in no way will be a
>shortcoming in the K3. 
>
>Good things coming - good things coming - mo mojo. !
>
>-------------------------------------
>
>Hi Ron:
>
>>I read in the previous postings that the CW sounded
>better on the K2
>>than the K3. That is a bit of a worry to me.
>>
>>Icom has the same problem, and quite often this seems
>to be a DSP rig
>>problem.
>>
>>How is the SSB souding from the K3 in particular with
>weak signals
>>deep, deep in the noise?
>
>In general, I've received just the very OPPOSITE
>reports. Most say that
>the K3 has some of the very BEST sounding keying that
>they've heard! And
>this from a number of folks whose opinions I value
>quite highly.
>
>The audio compression of the K3 really adds a lot of
>punch to the signal
>without introducing a large amount of distortion or
>artifacts, and the
>bandwidth does not increase significantly, as it does
>in some other rigs.
>
>73,
>
>Tom   N0SS
>
>
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