KX3 beta firmware rev 1.94 (with DSP rev 1.28) is now available. See release
notes below.
You'll need the latest version of our KX3 Utility application (1.13.8.24) to
download and install firmware. For full instructions on loading beta releases,
as well as KX3 Utility, see our KX3 software page:
http://www.elecraft.com/KX3/KX3_software.htm
73,
Wayne
N6KR
* * *
MCU 1.94 / DSP 1.28, 3-8-2014
* 8.5-9.5 MHz TRANSMIT AND ATU OPERATION IMPROVED: Corrected low power output
in this range, which also allows the ATU to function normally. Note: Applies
only if the KX3 is enabled for transmit in this range (U.S. “MARS” allocations,
etc.).
* KXPA100 POWER SETTING IMPROVEMENT: The KX3’s PWR control can now be adjusted
across the 10-watt/11-watt boundary in either direction during transmit
(including TUNE mode) without causing a large spike in KXPA100 power output.
Also, during TUNE, the “TX” knob function is now always assigned to power
output rather than keyer speed or mic gain.
* AGC-OFF AF LIMITER NOW WORKING: Some operators prefer to turn off AGC and
control gain manually using the KX3’s RF GAIN control. However, if an extremely
strong signal is present with AGC off, audio output can be uncomfortably loud.
The KX3 provides an AF limiter for the AGC-off case. Use the AF LIM menu entry
to adjust the threshold at which limiting takes place.
For Application Programmers (see the K3/KX3 Programmer’s Reference):
* "PO" (POWER OUTPUT READ) COMMAND NOW USABLE IN QRO MODE (KXPA100 ENABLED): As
with the KX3’s bar graph, the “PO” command returns an estimate of KXPA100 power
output based on KX3 drive level. (You can use the KXPA100’s “^PF” command to
read the amp’s power output more accurately.)
* "OM" COMMAND NOW SHOWS KXAT100 AND KX3-2M OPTIONS: These are represented by
the letters ‘T’ and ‘X’ respectively in the “OM” response.
* ATU.X MD MENU ENTRY (KXAT100 ATU MODE) NOW REMOTELY ACCESSIBLE: When the PA
MODE menu entry is set to ON, the ATU MD menu entry changes to ATU.X MD to show
the mode of the KXAT100 external ATU. The “MP” command can now be used to read
(but not set) the KXAT100’s mode in this case. (To change the mode, use the
KXPA100’s ^MP command.)
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