Allows you to remove one or more bands from the B AN D rotation. Use B AN D
up/down to select bands, then set them to In or O ut using VFO A. (Works with
transverter bands, too.) You can still get to mapped-out bands using memory
recall, direct frequency entry, or computer-control commands.
Sets the carrier-operated-relay (COR) threshold. The COR is used to detect, and
protect the KX3’s receiver from, a transmitter being used nearby. 0.1 watts is the
default and recommended level. See Troubleshooting for other suggestions.
Iambic keying mode (A or B ). The default is mode A, which is a little more
forgiving for first-time operators. Mode B may be preferred by operators who
learned to do “squeeze-keying” with another keyer having this or a similar mode.
Both modes provide dot- and dash-memories—enabling fast code speeds—but
with slightly different “element-insert” timing.
Specifies whether the left keyer paddle (tip contact on the KEY jack) is D OT or
DA S H. A third selection, HAN D, allows either tip or ring to function as a hand
key, or as an input for an external keying device (keyer, computer, or keyboard).
Specifies whether the left lever of the optional KXPD3 keyer paddle is DOT or
DA S H. A third selection, HAN D, allows either lever to function as a hand key,
or as an input for an external keying device (keyer, computer, or keyboard).
Adjusts element/space timing ratio (weight) for the internal keyer.
Additional functions of this menu entry, via numeric keypad:
Tap 1 to select SSB -CW (default) or SSB +C W (allows CW in SSB modes).
Tap 2 to select the function of the ‘@’ character in a CW message packet (see the
KY, or KEYing command in the K3/KX3 Programmer’s Reference). The two
options are @ = STO P (the ‘@’ character stops transmission) or @ = ‘A C’
(‘@’ is sent as Morse character .--.-. [@]).
Tap 4 to select VO X N OR (default) or AU T O O FF. The AU T O O FF setting
turns CW VOX off on power-up, avoiding accidental keying by attached PCs, etc.
Tap 5 to select automatic VFO offset on SSB/CW mode change (VFO O FS) or
no offset (VFO N OR , default). Automatic offset is often used on 6 meters, where
mixed-mode QSOs are necessary during fading. Note: Pitch matching will be
more accurate if USB is paired with CW REV, and LSB with CW normal.
Set to AU T O to enable Dual Watch (pg. 20). The SUB icon will turn on. If the
VFOs are not within the required range, the SUB icon will flash slowly.
FM voice deviation in kHz. Tap 1 to change the function to PL DEV (PL tone
deviation; default 0.36 kHz). To turn on PL tones, use P IT C H (pg. 15).
If set to OF F, FM will be removed from the mode selections.
Rotate VFO A to see firmware revisions: MCU (µ C , shorthand for
microcontroller), and DSP (dSP ).
Rotate VFO A to turn on all LCD segments for test purposes.
Set to ON for the Elecraft MH3. You may need to try both MIC BIAS settings to
see which works best with your mic. Monitor your transmitted signal with another
receiver when testing mic audio.
If your mic has both a PTT switch and UP/DN buttons, set the parameter to
PTT UP.DN. This applies to the Elecraft MH3. If the mic has PTT but no UP/DN
buttons, use PTT . Otherwise, use OFF. This applies to most headset-mics,
including the Heil models available from Elecraft. Third-party mics may not have
a KX3-compatible PTT (push-to-talk) switch. You can still key the transmitter
either by tapping the X MIT switch or by using VOX (pg. 15).
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