ELECRAFT K3S - FLx BW; FLx FRQ; FLx GN; FLX ON

59
CW WGHT
1.15
Adjusts element/space timing ratio (weight) for the internal keyer.
Additional functions of this menu entry, via numeric keypad (Advanced):
Tap 1 to select SSB -CW (default) or SSB +CW (allows CW in SSB modes).
Tap 2 to select @ = STOP (‘@’ character terminates KY-packet transmission;
default) or @ = ‘AC’ (‘@’ in a KY packet is sent as .--.-. [@] in CW mode).
Tap 3 to select OLD or NEW QSK (default). NEW reduces AF keying artifacts.
Tap 4 to select VOX NOR (default) or AUTO OFF. The AUTO OFF setting
turns CW VOX off on power-up, avoiding accidental keying by attached PCs, etc.
Tap 5 to select automatic VFO offset on SSB/CW mode change (VFO OFS) or
no offset (VFO NOR, default). Automatic offset is often used on 6 meters, where
mixed-mode QSOs are necessary during fading. Note: Pitch matching will be
more accurate if USB is paired with CW REV, and LSB with CW normal.
DATE
N/A
Real-time-clock date, shown as in the format selected by CONFIG:DATE MD
(MM.DD.YY or DD.MM.YY). Tap 1 / 2 / 3 to select month / day / year.
DATE MD
US
Select US (MM.DD.YY) or EU (DD.MM.YY) date formats.
DDS FRQ [T]
n/a
Not applicable to the K3S.
DIGOUT1
OFF
DIGOUT1 is a general-purpose open-drain output signal on the ACC connector
(pin 11). OFF = floating; ON = pull the line to ground.
DIGOUT1 is per-band, and also per-antenna if the KAT3A ATU is installed. It
can be used to control remote antenna switches, filters, etc.
Max. load current (ON) is 15 mA; max. load voltage (OFF) is 25 VDC.
DUAL PB
APF
Assigns one of two specialized filter functions to the APF switch in CW mode:
APF (audio peaking filter) or NOR (Dual-Passband Filtering, or Dual PB). See
pg. 37 for details on the two functions.
EXT ALC [T]
OFF t-4.0
(Advanced) Set to ON only if using external ALC with a high-power amplifier
(see pg. 29 for details). When set to ON, the external ALC threshold of the K3S (-
4.0 V by default) can be varied.
FLx BW
2.70 (FL1)
Crystal filter FL1-5 bandwidth in kHz, where x=1 to 5 (FL1-FL5). Tap 1 -5 to
select a specific filter, or tap XFIL (6 ) to select the next filter. Then set the
bandwidth to that marked on the crystal filter. (If desired, the value entered can be
slightly different from the marked value. For example, you might set the
bandwidth of the 8-pole, 400-Hz filter to 0.45 kHz rather than 0.40 kHz. This
delays automatic filter switching by the WIDTH control to 0.45, which may be
advantageous if you believe the 400-Hz filter still performs well at 450 Hz.)
Note: An easier-to-use alternative to the FLx menu entries is the Edit Crystal
Filters function of our PC software application, K3 Utility. It shows all filter
setups in a single window.
Tap 7 to turn IIR DSP filters on (IIR ON) or off (IIR OFF, default) for the 100
and 50 Hz bandwidths. IIR filters have steeper skirts and slightly more ringing
than the default FIR filters.
FLx FRQ
0.00 (FL1)
Crystal filter FLx center freq as offset from nominal (8215.0 kHz). Use the offset
value specified on the crystal filter’s label or PC board, if any. For example, if an
Elecraft 5-pole, 200-Hz filter were labeled “-0.91”, adjust VFO A for –0.91.
FLx GN
0 dB
(FL1)
Crystal filter FLx loss compensation in dB. 0 dB recommended for wide filters;
2 dB for 400 or 500 Hz filters, and 4 dB for 200 or 250 Hz filters.
FLx ON
ON (FL1),
per-mode
Used to specify which filters are available during receive. Each filter must be set
to ON or OFF in each mode. You can tap MODE within the menu entry.
SUB
SUB
SUB
SUB