Left out the full release notes! See below.
73,
Wayne
N6KR
* * *
MCU 1.75 / DSP 1.57, 3-6-08
* SSB TRANSMIT Improvements:
This is the first phase of our effort to provide SSB transmit
performance and usability
consistent with operator expectations. Changes include:
- Higher signal-to-noise ratio at both mic jacks, as well as
LINE IN
- More responsive, easier-to-use transmit-mode metering (CMP,
ALC, SWR, POWER)
- Much lower distortion with CMP set to 0 (for audio data modes,
high-fidelity speech)
- More effective ("punchier") speech compression (when CMP is
greater than 0)
(Planned for next release: Improved low-frequency response,
adjustable TX passband.)
Note on MIC gain setup: To properly adjust MIC gain, first set CMP
to 0, then adjust
MIC gain for about 5 bars on the ALC meter (it should not hit 6
bars during normal speech).
Then set CMP for the desired compression amount.
* 2 USER-DEFINED "NORM" filter setups for each mode:
Now, in addition to the K3's "NORM" values, you can save two of
your own often-used filter
setups in each mode, and recall them using the NORM function. The
new NORM values
are named ALT1 and ALT2. To save a filter setup, hold NORM until
you see "<- SAV ->"
(3 seconds), then rotate the knob left or right to save it as ALT1
or ALT2. (The arrows to the
left and right of "SAV" are a reminder that you can rotate the knob
left or right go get to the
"ALTernate" filter memories.) To recall, hold NORM until you see
"<- NOR ->" (about
1/2 second), then rotate the knob left or right to recall ALT1 or
ALT2. (If you just release
the knob without rotating it, you'll get the original "NORM" value,
e.g. 400 Hz in CW mode.)
Note: Whenever you normalize the filter passband via NORM, ALT1, or
ALT2, two "wings"
appear on the DSP filter passband graphic. Moving any DSP control
makes the wings
disappear, as a reminder that the passband is no longer normalized.
* RIT/XIT OFFSET DISPLAY MODE Added: This is especially handy for
those using RIT
during contesting. Tap DISP, then rotate VFO B until you see "0.00"
(after time and date).
* VFO LINKING: Holding the "SUB" switch links/unlinks the two VFOs.
When linked,
VFO A is the master, and turning it moves both VFOs the same
amount. VFO B can be
set to the same frequency by tapping A>B, or it can be offset a
fixed amount from VFO A.
Setting them to the same frequency will permit diversity receive
with the subreceiver.
* ATU MATCHING Improved: If you tap ATU TUNE a second time on the same
band/antenna within 5 seconds, a more extensive search is used that
may result in a
lower SWR. The original (fast) algorithm is unchanged. Further
improvements are planned.
* DUAL PASSBAND Bandwidth Restore: On exit from DUAL PB, the
previously used
CW bandwidth is restored.
* Tapping multifunction encoder knobs briefly displays the present
value
(SHIFT/LO, HI/WIDTH, SPEED/MIC, CMP/PWR). Double-tap to display the
existing
parameter (since this switches first to the alternate, then back).
* SPEAKER "popping" eliminated when using headphones and certain
combinations of
features (such as NR).
* LOCUT/HICUT CONTROL RANGE: DSP controls are better behaved,
preventing
"wrap-around" and other reported anomalies.
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