ELECRAFT K3S - SIG RMV [T]

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SIG RMV [T]
NOR
(Advanced; Optional) SIG RMV can be used to remove fast-tuning carrier
signals (spurs or “birdies”) that are audible even with an antenna connected.
Limitations: Applies only to CW/SSB/DATA modes, and only to the main
receiver. In CW and DATA modes, SIG RMV should not be used in combination
with a CONFIG:PB CTRL setting of Shift=.01. Set this to Shift=.05 first.
To undo SIG RMV: Tapping CLR while you’re in the SIG RMV menu entry
will delete all spur-removal information for the present band, only.
STEPS:
(1) Select the desired mode and band (for XVTR bands, use the I.F.).
(2) Adjust SHIFT/WIDTH or LO/HI CUT to settings you use most often.
(3) Locate a “fast-tuning” spur to be removed. A spur is “fast-tuning” if a 50 Hz
change in SHIFT moves the spur 300 Hz or more; such spurs result from high
harmonics of the VFO. Ideally, a small shift will move a spur completely out of
the audible passband. If you test a spur using SHIFT, be sure to return SHIFT to
its original setting before continuing, because SHIFT affects the spur frequency.
(4) Change the SIG RMV parameter to 0. This saves information about the spur,
including its frequency, the current mode, etc.
(5) Try different parameter values, starting with -1 or 1, to see if the spur can be
shifted out of the audible passband. After changing the parameter each time, exit
the menu and see if the spur is gone. (Each saved SIG RMV entry applies to a
single 100-Hz VFO segment, e.g. from 28135.30 to 28135.39, so you’ll have to
tune slowly through that 100-Hz range using 10-Hz steps.) You may hear a slight
tuning artifact as you tune in and out of the affected VFO segment, especially for
larger parameter values. This results from a shift in the crystal filter passband.
(6) Repeat steps 3 through 5 for adjacent 100-Hz VFO segments if necessary.
(7) If applicable, repeat steps 2 through 6 for other SHIFT/WIDTH or LO/HI
CUT settings you use in the present mode. Note: If you change your sidetone
pitch, you may need to re-do the procedure for spurs removed in CW mode.
SMTR OF
024
S-Meter offset; see calibration procedure and SMTR SC, below (pg. 54).
SMTR SC
014
S-Meter scale. Typically set so that S-9 = 50 µV and S-2 to S-3 = 1 µV with
Preamp 1 on, AGC ON, WIDTH of 500 Hz, and SMTR MD set to NOR. See
calibration procedure (pg. 54).
SMTR PK
OFF
Set to ON for peak-reading S-meter. (Not applicable in FM mode.)
SMTR MD
NOR
(Advanced) S-meter mode: When set to NOR, preamp/attenuator on/off will
affect the S-meter. (The default values of SMTR OF and SMTR SC apply to
NOR.) If set to ABS, the S-meter reading will stay fairly constant with different
preamp/attenuator settings, but SMTR OF and SMTR SC must be re-aligned.
SPLT SV
YES
If set to YES, SPLIT, RIT, and XIT on/off states are saved per-band.
SPKRS
1
Set to 2 if using two external speakers. This enables binaural effects in
conjunction with the AFX switch, as well as stereo dual-receive if the sub
receiver is installed. For further details on sub receiver use, see pg. 39.
SPKR+PH
NO
YES = Speaker is always enabled, even when headphones are plugged into
PHONES jack. See detailed discussion on pg. 22.
A secondary function of this menu entry is to select the speaker-cutout jack logic:
Tap 1 until you see PH.R SW– . The minus sign (-) indicates inverted switch
logic, required for the jack on the KIO3B audio board. (If this is set incorrectly,
you will not be able to hear any speaker output even with headphones unplugged.)