Specifications

36
AGC SPD
SLO
This setting is stored per-mode. The default for CW mode is FAST, and for other
modes, SLO. The setting is indicated by the AGC S and F display icons.
AGC*THR
007
This menu entry provides access to several AGC parameters, each of which starts
with AGC*. For most purposes the defaults will suffice. Tap the 1 through 6
switches to access the following parameters (defaults in parentheses):
1 AGC*THR (007): Threshold at which AGC action begins. A higher number
moves the threshold up, providing greater audio dynamic range.
2 AGC*ATK (215): Rate of AGC attack. A lower number than the default
provides a softer attack but may also result in overshoot.
3 AGC*HLD (000): Hold time in seconds for voice modes. Prevents AGC
decay for a specified time after attack, reducing AGC interaction with signals.
4 AGC*DCY (Fast, 140; Slow, 040): Specifies the decay rate for slow or fast
AGC (see AGC SPD menu entry). A larger number means a faster decay.
5 AGC*SLP (015): The higher the slope number, the "flatter" the AGC
response is. With a high setting of slope, signals above the AGC threshold will be
held close in audio amplitude even if they vary in strength at the RF input.
6 AGC*PLS (NOR): Noise pulse rejection. Prevents the AGC (and S-meter)
from charging up on one-shot noise events. Set it to OFF to disable this feature.
ALARM
OFF
Set alarm/Auto-Power-On time. Tap 1 to turn alarm on/off; tap 2 / 3 to set
HH.MM. If a KXBC3 option module is installed and an internal battery is
installed, time will be maintained when power to the transceiver is turned off.
Otherwise the time registers will reset to 00:00:00 on power-up.
At the alarm time, the KX3 will emit three short beeps. If power had been turned
off, AF output will then be restored to the last-used level.
AM MODE
ON
Set to OFF if AM operation is not planned. You can still copy AM signals using
SSB modes even if AM is turned off.
ATU MD
Not Inst
KXAT3 ATU mode (or KXAT100, if connected to the KX3). This is normally set
to BYP or AUTO. Modes L1-L8, C1- C8, and Ct are used to test the KXAT3’s
relays and L-network. Tapping CLR clears stored LC data for the present band.
AUTO INF
NOR
If set to ANT CTRL, the KX3 will send band data (“automatic info”) to its
ACC1 jack for use with devices such as SteppIR™ antennas. The data is sent on
every band change, and once per second if the VFO is being moved. See pg. 28.
If set to RIG CTRL, the KX3 will function as a front panel for remote control of
a second KX3 (or a K3) via an internet or wiFi connection. See pg. 28.
AUTO OFF
INFINITE
Sets auto-power-off time in minutes (the timer is retriggered when any control is
used, and during transmit). If set to INFINITE , power is never turned off. A
setting of 5 or 10 minutes is recommended when running from batteries.
BAT CHG
Not Inst
If the KXBC3 option is installed (NiMH charger and real-time clock), set to
CHG OFF normally. To charge batteries, used one of the timed-charge settings.
See KXBC3 manual for detailed information on battery charging. See pg. 24 for
battery installation instructions.
BAT MIN
10.0
Low-battery warning threshold. The default (10.0 volts) is sufficient for use with
some 12 V batteries such as gel cells. For eight internal NiMH batteries, a setting
of 8.5 V is recommended. For internal alkaline or nonrechargeable lithium
batteries, use 9.0 V. If the internal battery or external supply/battery voltage
drops below this level, the operator will be alerted with BAT LOW messages
every few minutes. The KX3 will turn itself off if the supply voltage drops below
7.0 V. For tips on extending battery life, see pg. 24.
BKLIGHT
ON
LCD backlight on/off. The display is transflective, so it can be seen in sunlight