Used to specify which crystal filter to use during TX. {md} = CW/SB/AM/FM.
Choose filters with bandwidths as follows: SSB, 2.7 or 2.8 kHz (also applies to
data); CW, 2.7 or 2.8 kHz; AM, 6 kHz or 13 kHz; FM, 13 kHz or higher. The FM
filter, if present, must be installed in FL1.
Note: If you’re using a 2.7-kHz 5-pole filter for SSB transmit, you can optionally
fine-tune its FLx FRQ parameter to equalize LSB / USB transmit characteristics.
Monitor your signal on a separate receiver, using headphones.
(Advanced) FM voice deviation in kHz. Tap 1 to change the function to PL
DEV (PL tone deviation).
Note: The deviation setting for sub-audible tones (CTCSS) is separate from that
for the European standard tone (1750 Hz). Before adjusting PL DEV, select the
applicable pitch using the PITCH switch.
If set to OFF, FM will be removed from the mode selections.
Used to calibrate the front panel temperature sensor, which reads in degrees C. To
convert °F to °C, use Deg. C = (deg. F–32) * 0.555.
0 = Inverted FSK transmit data polarity, 1 = Normal data polarity. For use only
with external FSK-D keying via programs such as MMTTY. Not recommended
for CW-to-DATA use.
Rotate VFO A to see firmware revisions: MCU (uC), main DSP (d1), aux DSP
(d2, if KRX3A is present), flash parameters (FL), and KDVR3 controller (dr).
Tap 1 to see the LCD controller and RF board types. For the K3S, you should see
VER B/2, where B refers to the LCD controller type and 2 refers to the RF
board type. Older types apply only to the K3.
KAT3A ATU mode; normally set to BYP or AUTO (outside the menu, ATU
alternates between the two). Also see test settings below.
Tap 1 to enable or disable VFO tracking with a connected KAT500 automatic
antenna tuner. KAT500Y (yes) or KAT500N (no) will be flashed on the VFO B
display to indicate the current selection. When VFO tracking is enabled, the
KAT500’s L-network will be continuously updated as the VFO is tuned.
Normally the KAT500 tracks VFO A; in SPLIT, it tracks VFO B (the TX VFO).
Tap CLR within this menu entry to clear stored L-network data for the present
band. This is very useful when matching across the band to a new antenna.
Modes L1-L8, C1-C8, and Ct are used to test KAT3A relays. Mode LCSET
allows manual adjustment of L/C settings (you must exit the menu first). When in
LCSET mode, tapping ATU TUNE shows the L and C values; C is changed with
VFO A, L is changed with VFO B, and ANT toggles between Ca and Ct.
If KBPF3A option is installed: set to NOR, exit menu, and turn power off/on.
With the KBPF3A installed, the full HF range from 0.1 to 30 MHz can be used.
For information on using the 100-550 kHz range, see pg. 41.
If KDVR3 option is installed: set to NOR, exit menu, and turn power off/on.
Note: Normally, playing DVR transmit messages automatically asserts PTT. To
use manual PTT with DVR transmit (via a footswitch or external sequencing
equipment), tap 1 within the KDVR3 menu entry until you see USE PTT.
Determines function of BAND0-3 outputs on ACC connector. See pg. 21.
If the menu entry name is KIO3 (without the B ), then the K3S has not correctly
detected the KIO3B module, and the USB and RS232 ports will not function. Try
turning power off/on. If the problem persists, contact Elecraft.
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