Elecraft K3 Owner's Manual - Manual (Page 61)

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TUN PWR NOR If set to NOR , T U N E power level follows the POWER knob. Otherwise,
establishes a fixed power level for T U N E , overriding the present POWER knob
setting. Note1: TUN PWR does not pertain to A T U T U N E , which always uses 5
or 10 W and is internally controlled. It also does not apply to transverter bands
using the low-power KXV3 output (XVTR OUT). Note2: see CONFIG:PWR
SET for per-band power control.
TX ALC [T] ON (Troubleshooting.) Set to OFF to disable both internal and external transmit
ALC (overrides EXT ALC setting). Used when adjusting band-pass filters in TX
mode, or for troubleshooting. Set parameter to
ON during normal operation.
TX DLY NOR 008 (Advanced) For use with external amplifiers that have slow relays; sets the time
from KEY OUT jack (active low) to first RF in 1-ms steps. To minimize loss of
QSK speed, use the shortest delay that works with your amp. Most will work with
the default (minimum) setting of 8 ms.
CAUTION: If you use any setting above 008, and you’re using an external
keyer in CW mode, you should listen to your keying on another receiver. At
some code speeds and keyer weight settings, your CW keying may exhibit
excessive jitter (per-element variation) that can be heard on the air.
Note: If CW QRQ is set to
ON , the minimum delay from KEY OUT to first RF
will be somewhat shorter (approx. 4 to 5 ms rather than 8 ms).
TX DVR NOR (Advanced) Set to IND to allow independent control of the DVR transmit
playback level, and the monitor normal transmit speech monitor level. In this
case, holding the MON knob a second time alternates between DVR level and
MON level. Useful for operators who don’t normally use the transmit monitor,
but would like to hear DVR playback audio during transmit.
TX ESSB OFF 3.0 (Advanced) Extended SSB transmit bandwidth ( 3.0 to 4.0 kHz) or OFF . Tap 1
to turn on/off, and rotate VFO A to select the bandwidth. (Also see pg. 36.) If you
turn ESSB on/off frequently, you might want to assign this menu entry to a
programmable function switch (PF1, PF2, or M1-M4).
TX GATE OFF 0 (Advanced) 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. The TX
GATE threshold can be adjusted in
TX TEST mode.
TX INH [T] OFF (Advanced) If set to LO= INH or HI= INH , an external logic signal can inhibit
transmit (see pg. 19). When transmit is inhibited, the TX LCD icon flashes.
TX MON NOR (Advanced) When set to NOR , voice monitor audio will be delayed due to DSP
signal processing, and will reflect the sound of speech compression, if applicable.
FAS T may be preferable if you’re distracted by these effects. In this case,
monitor audio will be “dry” (unprocessed).