DATA modes: DATA A and PSK D normally use USB, while AFSK A and
FSK D use LSB. ALT selects the other sideband (data reverse) for the current data
submode, turning on the REV icon.
Set to OFF if AM operation is not planned. You can copy AM signals using SSB
modes.
Shows total amp hours used by the KX2. This is useful for testing battery packs,
estimating remaining battery charge, or tracking the amp hours needed to complete
one or more objectives (e.g., a certain number of QSOs at a given power level).
The value is preserved on power-off, so it can show amp hours used over any
number of operating sessions. Holding CLR resets the value to 0.000; this is
typically done after swapping in a fresh battery. (Amp hours is also one of the
special VFO B displays; tap DISP, then rotate VFO B until you see n.nnnAH.
This display persists during transmit so you can monitor the rate of increase.
In receive mode, the amp hour value will go up by .001 every 20-25 seconds. In
transmit mode, the value will go up by .001 every 2 to 10 seconds, depending on
operating mode, power setting, and antenna load impedance (all three can affect
current drain).
This menu entry (eXternal Antenna switch) can be used to remotely select antenna
1 or 2 on the KXPA100. Requirements: (1) a KXPA100 with the KXAT100 ATU
option must be connected to the KX2 via the amplifier control cable; (2) the KX2’s
PA MODE menu entry must be set to ON.
The KX2 stores two full sets of per-band data for the internal ATU (KXAT2). This
menu entry selects which set to use. Typically SET 1 is used at a home location,
and SET 2 for field operation. The two sets can also be used in cases where two
antennas are available for a given band. (Note: This menu entry has no effect on
KXAT100 ATU data, which is already stored separately for each of the KXPA100
amplifier’s antenna jacks. The KX2 can remotely switch KXPA100 antennas using
the ANT.X SW menu entry.)
Holding CLR while in this menu entry clears stored LC data only for the currently
selected set on the present band.
In the ATU DATA and ATU MD menu entries, tapping ATU shows the present
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