If set to ON , switch presses generate audible feedback tones. If set to C OD E nn,
Morse code characters are generated on any control activation at nn words per
minute. (The full list of Morse code control characters, as well as a text-only
panel description for blind operators, can be found on our KX3 web page.)
Switch tone volume is the same as CW sidetone volume. It must be adjusted in
CW mode, using MO N .
Pitch of switch tones and Morse characters: In general, a low-to-high tone pair
(or high-pitched Morse) is generated when a switch function is turned on, and
high-to-low (or low-pitched Morse) when it is turned off. Following AT U T UN E,
Some switches do not generate tones because they might interfere with received
or transmitted audio.
Set to ON to view Tech Mode menu entries (those marked with
in this list).
Real-time-clock view/set. Tap 1 / 2 / 3 to set HH / MM / SS. To see the time and
other displays during normal operation, tap DI S P (see pg. 11). Time is only
maintained if a KXBC3 option module and an internal battery are installed.
If set to NOR , T U N E power level follows the POWER knob. Otherwise,
establishes a fixed power level for TU N E , overriding the present POWER knob
setting. Note1: TUN PWR does not pertain to A TU TU NE , which always uses 2
or 3 watts and is internally controlled. It also does not apply to transverter bands
using the low-power KXV3 output (XVTR OUT).
Transmit bias constants. See Transmit Bias, pg. 32.
Used at the factory to null the transmit carrier on each band. See Transmit
Carrier, pg. 34.
Transmit audio graphic equalizer (voice modes only). Functions the same as RX
EQ, above. TX EQ can be adjusted during transmit. SSB TX EQ is separate
from TX EQ for other voice modes. Not applicable to CW or DATA modes.
Extended SSB transmit bandwidth (3.0 to 4 .0 kHz) or OF F. Tap 1 to turn on/off
and rotate VFO A to select the bandwidth. (Also see pg. 22.)
Shows transmit gain constant for the present band and power setting. Two gain
constants are used: one for PWR settings of 5.0 watts or less, and the other for
PWR settings of 5.1 watts or higher. The gain constants are calibrated whenever
the TU N E function is activated at exactly 4 .0 or 6.0 W. See Transmit Gain
calibration procedure, pg. 33.
Transmit ALC can be turned off for 2-tone testing or other purposes by tapping
DL Y while in this menu entry. (This is NOT necessary for any operational
purpose. In DATA modes, ALC is already optimized for low distortion.) When
ALC is turned off, a (-) sign is added to the parameter, e.g. -ALC nn. Also, an
asterisk is added to the PW R control value when it is being adjusted (e.g. 5.0
W* ). In this case, the displayed power level will not change; the control functions
as a fine power adjustment, and its effect should be observed with an external
instrument.
The TX noise gate can be used to suppress transmitted audio below a certain
level, e.g. that of an amplifier fan. Tap 1 within the TX GATE menu entry to turn
the noise gate on/off. Use VFO A to set the desired threshold. Since there’s no
visual indication that transmit audio is below the threshold, you should adjust it
using the transmit voice monitor (MON), ideally while using headphones. Set the
threshold high enough to cut off transmit audio due to local noise, but not so high
that it causes your voice to drop out too frequently.
Used at the factory to null transmit opposite sideband. See Transmit Sideband,
pg. 34.
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