values of L (inductance), C (capacitance) and N (L-network configuration). This
applies only to the internal ATU (KXAT2). The displayed data format is
LxxCxxNy. <xx> is a 2-digit hexadecimal value that, when converted to binary,
shows which ATU L or C relays are engaged. <y> shows which side of the L-
network the capacitance is on: Nt = TX side, and NA = antenna side.
Normally, this menu entry’s name is ATU MD, and it controls the mode of the
KX2’s internal automatic antenna tuner (KXAT2 option).
If a KXPA100 with a KXAT100 ATU option is connected via the remote-control
cable, and PA MODE is ON, the menu entry changes to ATU.X MD (.X =
eXternal). In this case the menu entry controls the auto-tune mode of the
KXAT100.
The parameter is normally set to BYP or AUTO. Modes L1- L7, C1- C7, and Ct
are used to test the KXAT2’s relays and L-network (not applicable to the
KXAT100).
Holding CLR while in this menu entry clears stored LC data for the present band.
If the KXAT100 is in use, the data for the currently selected antenna is cleared. If
the internal ATU is in use, data for the current ATU DATA set is cleared.
If set to ANT CTRL, the KX2 will send band data (“automatic info”) to its ACC
jack for use with devices such as SteppIR™ antennas. The data is sent on every
band or mode change, and once per second as the VFO is moved. See pg. 35.
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.
Used to set the KXIO2 option module’s AUX outputs to ON or OFF on a per-band
basis.
Details: The AUX jack provides a ground (0 V) and two open-drain output
signals: AUX 1 and AUX 2. Open-drain outputs simulate a contact closure to
ground when in the ON condition, and are floating (high-impedance) when OFF.
Typically, the ON state would be used to turn on a relay connected to a DC supply
voltage (28 V max, 150 mA max).
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