Posted by
Bob Cunnings NW8L on
Feb 15, 2009; 7:44pm
URL: http://elecraft.85.s1.nabble.com/K3-Beta-firmware-rev-2-80-Improvements-to-AFSK-A-DATA-A-SSB-AM-FM-DVR-tp2305650p2331139.html
I'm not looking for another radio, as I've been doing what seems
obvious (to me) - using USB mode for sound card digital operation, not
DATA A. Yes, I forgo the benefit of the management of compression
setting and mic selection that comes with using DATA A - but as things
stand now one must change TX EQ manually when switching back and forth
between SSB and data modes anyway, right? The compromise would be
greater if TX EQ settings become available on a per mode basis. Yes,
as you state the difference in quality of signal doesn't seem to be
significant, my PSK31 signal is uniformly reported as good when in USB
mode, just as in DATA A. I set input level for 4-5 bars ALC.
Yes, DATA A is a work in progress. Prior to firmware version 2.23 DATA
A power control seemed much like that of LSB/USB, but after that
version (which introduced the "LSB/USB TRANSMIT EQUALIZATION" change)
the behavior of DATA A and LSB/USB diverged. I've observed the DATA A
changes that have taken place since, and corresponded with K3 support
on this topic a couple of times as the firmware evolved. However, at
the moment I simply run with current firmware and use USB for data
modes. Yes, I have an external peak reading watt meter in line at all
times so I could use DATA A and tweak the power setting as I move
around in the waterfall, but it's convenient to be able to set (and
confirm) power once and forget it, as I can in CW.
Bob NW8L
On Sun, Feb 15, 2009 at 4:14 AM, Julian, G4ILO <
[hidden email]> wrote:
<snip>
> If the majority of other data mode users are happy with the K3 the way it is
> and Elecraft can't or won't change it, then it's probably time for me to
> look for another radio.
</snip>
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