Direct Frequency Entry
To jump to any frequency within the tuning range
of the K3, tap FREQ ENT , then enter 1 to 3 MHz
digits, a decimal point, and 0 to 3 kHz digits.
Follow this with Enter ( . . ) to accept or
FREQ ENT to cancel. The decimal point is
optional if no kHz digits are entered, making it very
easy to get to the low end of most ham bands.
Examples:
1.825 MHz: FREQ ENT 1 8 2 5 . . .
1.000 MHz: FREQ ENT 1 .
50.100 MHz: FREQ ENT 5 0 . 1 .
For frequencies under 1 MHz, start entry with a
decimal point. If 4 or more digits are entered
without a decimal point, a value in kHz is assumed.
Keypad
Keypad switches have the tap and hold functions
listed below. They are also used for selecting quick
memories 0-9, and for direct frequency entry.
VFO Controls (Upper row)
The upper row of numeric keypad switches is used
to set up VFOs A and B. Their functions are:
A / B Exchange VFO A and B contents
BSET Set up VFO B and sub RX (see below)
REV Exchange VFO A and B temporarily
(repeater RX/TX swap in FM-RPT)
A B Copy VFO A frequency to VFO B;
tapping twice copies all other settings
(also see CONFIG:VFO B->A)
SPLIT Enable SPLIT receive/transmit
If cross-mode operation is not allowed for the
present VFO A and B modes, you’ll see SPL N/A
if you try to enable SPLIT. If cross-mode operation
is allowed, the mode icon for VFO B will flash as a
warning. Tap any switch to cancel the flash.
Holding BSET allows VFO B (and the sub
receiver, if on) to be set up directly (pg. 39). As
long as BSET is displayed, all VFO-related
controls and display elements apply to VFO B. An
alternative is to exchange VFOs with A / B , set up
VFO A, then exchange them again.
Receiver Control & Misc. (Lower Rows)
Receiver control functions normally apply to
VFO A/main receiver. If BSET is in effect, they
apply to VFO B (and the sub receiver if turned on).
PRE Preamp on/off; also selects preamp 2
if enabled on 12/10/6 meters (pg. 25)
ATT Attenuator on/off (5/10/15 dB, per-
band; hold switch for 2 seconds to go
directly to MAIN:ATTEN setting)
AGC AGC slow/fast (also see CONFIG:
AGC DCY, AGC HLD, and other
AGC menu entries)
OFF AGC off/on (when off, an AF limiter
is available; see CONFIG:AF LIM)
XFIL Select next available crystal filter
(see CONFIG:FLx ON)
APF CW: APF or Dual-passband filtering
(see CONFIG:DUAL PB);
RTTY: dual-tone filtering (pg. 32)
NB Noise blanker on/off (pg. 27)
LEVEL Noise blanker levels (pg. 27); use
VFO A knob to setup DSP blanker,
and VFO B to setup I.F. blanker
NR Noise reduction on/off (pg. 27)
ADJ Noise reduction parameter adjust; use
VFO B knob (pg. 27)
NTCH Notch filter auto/manual/off (pg. 27)
MAN Manual notch frequency (pg. 27); use
VFO B knob
SPOT Spot tone on/off (manual), or auto-
spot (if CWT is on; pg. 36)
PITCH CW sidetone PITCH, PSK pitch,
FSK / AFSK MARK tone and shift
(pg. 33), or FM tone setup (pg. 31)
CWT CW/data tuning aid on/off (pg. 36);
turn on to use auto-spot
TEXT DEC Text decode, CW or DATA (pg. 35);
use VFO B knob to select mode
AFX Audio effects on/off (pg. 37); use
CONFIG:AFX MD to set mode
DATA MD DATA mode selection (pg. 33); use
VFO B knob