Yes, it has been an informative thread indeed. I considered weighing in,
but everything seemed to be covered in excellent detail. I will say
that, based on my measurements, a much bigger issue today is transmitter
performance rather than receiver performance. The main culprit is of
course synthesizer noise, but splatter and key clicks are also
contributors. I have pictures from my panadapter, which uses a xtal
oscillator LO, of an analog signal generator feeding the panadapter
directly at about S9+80dB. The picture is clean as a whistle. The same
signal going through the K3 shows some spreading of the signal within a
few kHz due to the effect of the synthesizer. The noise floor
degradation is a modest 10dB at 2 kHz, and none at 5kHz.. The same
setup, fed by a signal from my TS-480S is unbelievable. The noise floor
jumps about 25 dB, and extends tens of kHz either side of the signal. A
signal 2kHz from the TS-480S would have to be S9+10dB to be heard!
On the interface, I love having the option of controlling the K3 by hand
or through one of the connected programs. to me, it's the best of both
worlds.
Good point about virtual studio. I retired just before they came into vogue.
73,
Larry N8LP
Toby Deinhardt wrote:
Hi Larry,
I have lots of experience with video editing suites, both
traditional, and
high end workstation based systems. They each have their advantages,
and I
haven't noticed any speed advantage for either when it comes to
post-production. When it comes to live production, however, buttons and
knobs win hands down IMO.
The point is not so much *if* buttons, sliders, knobs and the like are
better, but how the operating controls are arranged. For example, I
would hate to think of doing a live edit of a sports event if
everything is mounted a vertical plane.
Otoh, I was involved in a live sports magazine show, which was
produced in a virtual studio - this would not have been possible
without a context sensitive GUI on a computer screen.
For a contest situation I would like a little of both, especially if
my hands do not have to "wander" around to operate various parts of
the station and at the same time do the logging.
vy 73 de toby
PPS: Amazing how my innocent question whether the ADT-200A had been
tested somewhere, has resulted in a wonderful thread dealing with many
aspects of modern radio design...
_______________________________________________
Elecraft mailing list
Post to: [email protected]
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
