Elecraft K3 Owner's Manual - Manual (Page 22)

22
Band and Mode Selection
Tap either end of B A N D to select the desired ham
band (160 through 6 meters). You can use direct
frequency entry (pg. 15), or recall a frequency
memory (pg. 16). Individual bands can be mapped
out if not needed (see CONFIG:BND MAP).
Tap either end of M O D E to select the operating
mode. Hold A L T to select an alternate mode, if
required. This include CW REV (pg. 30), DAT A
REV (pg. 31), AM- S (synchronous detection, pg.
29), and FM +/- (FM repeater split, pg. 29).
Antenna Selection and Matching
Main Antennas (ANT1 and ANT2)
If you don’t have a KAT3 antenna tuner installed,
connect your antenna to ANT1.
If you do have a KAT3 installed, you can connect
antennas to both ANT1 and ANT2; tap
A N T to
select. Holding A T U selects AUT O (autotune
enabled) or BYP ASS mode. In AUTO mode
( ATU icon on), the antenna can be matched for best
SWR by tapping A T U T U N E . Up to 30 ATU
settings are saved for both antennas on every band.
The
ATU icon will flash briefly whenever new
settings are automatically loaded.
Tapping A T U T U N E a second time within 5
seconds starts a more extensive match search. The
ATU can even be manually tuned if desired. Refer
to CONFIG:KAT3 for details.
Holding A N T allows names to be assigned to
ANT1 and 2 (e.g., ‘ YAG I’ ). These will be flashed
when you switch antennas. When editing names,
VFO B selects the character position to change;
VFO A cycles through available characters. Setting
the first character to “
- ” disables name display.
Receive-Only and 2-Meter Module Antennas
With the KXV3 option installed, you can tap R X to
select the receive-only antenna (RX ANT IN/OUT,
pg. 39). The KRX3 sub receiver either shares the
main receiver’s antennas or uses an auxiliary input
(AUX RF, pgs. 37 and 41).
If a K144XV 2-meter module is installed, connect
its antenna to ANT3. Refer to the K144XV manual
for further details.
Using the VFOs
VFO A is both the main receive and transmit
frequency, except during SPLIT, in which case
VFO B controls the transmit frequency (pg.36).
VFO B also controls the sub receiver (pg. 37).
Tap R A T E to select 10 / 50 Hz per step. The faster
rate can be changed using CONFIG:VFO FST.
The number of counts (or steps) per VFO knob turn
can be changed using CONFIG:VFO CTS.
Tapping
R A T E briefly flashes either the 10-Hz or
100-Hz digit to indicate slow or fast tuning.
For 1-Hz steps, tap F IN E ; for wider steps, use
C O A R S E (see CONFIG:VFO CRS). When F IN E
is in effect, a 1-Hz digit will appear in the VFO A
display. When
C O A R S E is in effect, the 10-Hz
digit is not shown.
Tap A B once to copy VFO A’s frequency to
VFO B. Tapping A B a second time within 2
seconds also copies VFO A’s filter setup, preamp
state, and other settings to VFO B.
A / B exchanges VFO A and B and their settings.
(Also see CONFIG:VFO B->A .) Pressing R E V
only exchanges the VFOs for as long as you hold
it in. (Exception: When using an FM repeater
offset,
R E V permanently swaps RX/TX.)
VFO B and the sub receiver can be set up directly
by holding
B S E T . While BSE T is in effect, all
icons and VFO-related controls apply to VFO B
(and to the sub receiver, if turned on; see pg. 37).
Holding S U B links/unlinks the VFOs, while a long
hold (> 2 seconds) turns on diversity mode (pg. 37).
RIT and XIT
The RIT/XIT offset control, at the far right, sets the
offset for
R IT and X IT . The offset is shown on the
VFO B display as you adjust the control. Three
LEDs show whether the offset is 0, (-) or (+).
Tap C L R to zero the RIT/XIT offset. Tapping it a
second time restores the offset.
To copy the present RIT offset to VFO A, hold
C L R for 2 seconds. VFO A will be moved to the
new frequency before the offset is zeroed.
If RIT/XIT are both off, the offset control can
coarse-tune VFO A (CONFIG: VFO CRS). Coarse
tuning steps are programmable by mode.