ELECRAFT K3S - VFOS and RIT;XIT; Transmit, ATU, and Antenna Controls; Preamp and Attenuator; NB, NR, and Notch

6
VFOs
and RIT/XIT
• RATE {21} selects 10 or 50 Hz VFO/RIT tuning. See VFO menu entries, pg. 57.
• FINE {21} selects 1-Hz steps. COARSE selects large steps (MAIN menu, VFO CRS).
• Tap FREQ ENT {21} to enter frequency in MHz using numeric keypad & decimal point.
Tap return ( ) to complete the entry, or tap FREQ ENT again to cancel (pg. 15).
• Hold SCAN to start/stop scanning. SCAN must be preceded by a memory recall (pg. 42).
• The RIT and XIT offset knob {17} has LEDs that show -/0/+ offset (pg.16). Tap CLR
{16} to zero the offset. Hold CLR for > 2 sec. to add the offset to VFO A, then zero it.
Transmit,
ATU, and
Antenna
Controls
• The TX LED {4} indicates that the K3S is in transmit mode. The ∆ f LED turns on if the
RX and TX frequencies are unequal, e.g. SPLIT, RIT/XIT, cross-mode (pg. 13).
• XMIT {8} is equivalent to PTT {36}. TUNE puts out full CW power in any mode.
• ATU TUNE {8} initiates antenna matching (pg. 24). ATU enables or bypasses the ATU.
• ANT selects ANT1 or ANT2. RX ANT selects main or RX antenna (KXV3B module).
Preamp and
Attenuator
• Tap PRE {13} to turn on the preamp (pg. 25). On 12-6 m, preamp 2 can be used.
• Hold ATT {13} to turn on the attenuator (pg. 25). Hold ATT for 2 seconds to go into the
MAIN:ATTEN menu entry; per-band attenuation level can be set to 5/10/15 dB.
NB, NR,
and Notch
• Tap NB {12} to enable DSP and I.F. noise blanking. Hold LEVEL to set DSP NB level
(VFO A) and I.F. NB level (VFO B). Fully CCW is OFF in both cases. (Pg. 27.)
• Tap NR {12} to turn on noise reduction (saved per-mode). Hold ADJ to tailor noise
reduction for the present band conditions (pg. 27).
• NTCH {12} turns on auto-notch in SSB mode, manual notch in others. MAN turns on
manual notch in any mode, and is also used to adjust manual notch frequency (pg. 27).
SPLIT,
BSET,
and SUB
• Hold SPLIT {13} to enter split mode (RX on VFO A, TX on VFO B). If VFOs A and B
are on different frequencies in SPLIT mode, the Delta-F LED (∆ f ) will turn on (pg. 13).
• Hold BSET {13} to adjust VFO B / sub RX settings independently of VFO A (pg. 39).
• Tap SUB {20} to turn on the sub receiver (pg. 39). VFO B controls its frequency.
• Hold DIV {20} to engage diversity mode (pg. 40), which can reduce signal fading.
• VFO B can be linked (slaved) to VFO A using CONFIG:VFO LNK menu entry.
Memories,
Messages, and
DVR
• To store a frequency memory, tap V M {14}, then: tap M1-M4 {15} to save a per-band
quick memory; or tap 0 -9 to save a general-purpose quick memory; or rotate VFO A to
select from memories 0-99, then tap V M again to save. Tap M V to recall. (Pg. 16.)
• REC and M1-M4 {15} are also used to record & play voice/CW/DATA messages. The
KDVR3 option is required for voice messages and AF REC / AF PLAY (pg. 31).
Menus and
Switch Macros
• MENU & CONFIG {8} access the MAIN and CONFIG menus. VFO B selects entries;
VFO A changes parameters. In general, CONFIG menu entries are used less often.
• Tapping DISP {8} within menus shows information about each entry on VFO B (pg. 55).
• Menu entries can be assigned to programmable switches PF1 , PF2 {16} and M1-M4 {15}
(pg. 55). These switches can also be used to create custom SPLITs, etc. (macros, pg. 23).
Other
Features
• RX and TX EQ (MAIN menu) provide 8 bands of receive/transmit equalization (pg. 37).
• Tap AFX {18} to enable the selected audio effect (see CONFIG:AFX MD, pg. 55).
• Tap DISP {8} and use VFO B to show time, supply voltage, etc. on VFO B (pg. 38).
• The ALARM function (MAIN:ALARM menu entry) can be used to remind you about a
contest, net, or QSO schedule, and can even turn the K3S on at alarm time (pg. 38).
• The KIO3B module provides a rich set of AF {34} and digital {31-33} I/O (pg. 17).