Elecraft K3 Owner's Manual - Manual (Page 58)

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MIC BTN OFF Set to ON if your mic has UP/DOWN buttons compatible with the K3’s front-
panel mic jack. Not applicable to the Elecraft MH2 or MD2 microphones.
Tapping UP/DOWN once moves the VFO up/down one step (based on current
tuning rate); holding UP/DOWN moves up/down continuously. If frequency
moves up/down continuously, your mic is not compatible; set MIC BTN
OFF .
L-MIX-R A B Sets left/right mix of main (A) and sub (B) audio. Default is main full left, sub
full right. A setting of
AB B would provide main/sub mixing on the left, etc.
NB SAVE NO Set to YES to save noise blanker on/off state per-band. Noise blanker levels, both
DSP and I.F., are always saved per-band regardless of this setting.
PA TEMP N/A If a KPA3 (100-W PA module) is installed, shows KPA3 heat sink temperature
and allows it to be adjusted. See calibration procedure on pg. 51.
If you’re operating at high power from a battery, and voltage is dropping enough
to cause an erroneous
HI TEMP indication, tap 1 in this menu entry to select R
ONL Y (receive only) temperature sensing, rather than the default ( T A ND R ).
PB CTRL Shift=.05 (Advanced) Specifies the granularity of the passband SHIFT control on a per-
mode basis:
.05 (default) or .01 kHz. Select the desired mode first, then select
the desired granularity. Limitations: Only applies to CW and DATA modes.
Selecting
.01 kHz reduces the SHIFT range and disables HI CUT and LO CUT.
May interfere with spurious signal removal (CONFIG:SIG RMV), i.e. “removed”
signals may not be shifted the right amount, and thus may again be audible.
PTT-KEY OFF-OFF (Advanced) Allows selection of RTS or DTR RS232 lines to activate PTT or
key the K3. (See pg. 18 for connections.) Example: if the parameter is set to
RTS -DTR , then the RTS line will activate PTT, and DTS will key the rig. Note:
If a computer or other device asserts RTS or DTR while you’re in this menu
entry, the K3 will switch to
TES T mode (zero output) as a precaution. The TX
icon will flash as a reminder. To avoid this, make sure software has flow control
and/or keying options turned OFF while you’re changing the PTT-KEY selection.
PTT RLS 20 (Advanced) Provides a delay between release of PTT and dropping of the
transmit carrier; intended for use with fast turn-around data protocols such as
AMTOR and PacTOR. (No effect in CW, FSK D, or PSK D modes.)
A value of 20 or higher may be needed to ensure accurate data transmission with
these protocols. If sync data or
–S is in effect (see SYNC DT), a lower value,
typically 10 to 12, is optimal. Also see AMTOR/PacTOR (pg. 32).
PWR SET NOR If set to NOR , the power level on each band follows the present setting of the
PWR control. If set to PER -BAND , the power level is saved on each band. This
is especially useful with external amplifiers (see ALC discussion on page 75.)
If a KPA500 is connected to the K3 via the ACC cable, two sets of per-band
power settings are saved: one for “barefoot” operation, one for use with the amp.
When the amp is used, an asterisk appears as PWR is rotated (e.g.
30 W* ).
Tap 1 to LOC K or UNL OCK the MIC, CMP, and PWR controls.
REF CAL
[T] 49380000
Hz
Used to calibrate the K3’s reference oscillator. VFO A is used to set the reference
oscillator frequency in Hz. Typically it will be 49380.000 +/- 1000 Hz. Refer to
page 50 for manual reference oscillator calibration details.
If a K3EXREF option is installed and connected to an external 10-MHz reference,
the REF CAL parameter will be calibrated automatically about 10-15 seconds
after power-up. An asterisk will appear in the menu entry name (e.g. REF*CAL);
the asterisk flashes as long as data is being received from the K3EXREF.
Tapping
1 saves the automatically derived value as the default (manual) value.
This is not required, but is useful if the external reference is ever disconnected.