Specifications

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LIN OUT NOR 010 Sets the LINE OUT level. LINE OUT connections go to PC soundcard inputs.
Settings above 10 may result in overdrive of the soundcard or saturation of the
KIO3’s isolation transformers; monitor signals using the PC to avoid this.
Note: Normally, LIN OUT sets a fixed-level receive-only output for main/sub
(L/R), compatible with digital modes. Tapping 1 switches LIN OUT to
=PHONES, where the line outputs match headphone audio, audio level is
controlled by AF/SUB gain controls, and both RX andTX audio are available.
MIC BTN OFF Set to ON if you’re using a mic that has UP/DOWN buttons compatible with the
K3’s front-panel mic jack. Not applicable to the Elecraft MH2 or MD2
microphones. Mic FUNCTION button not presently supported.
Tapping UP or DOWN once will move the VFO up or down one step (based on
the current tuning rate); holding UP or DOWN will move up or down
continuously. If you see the frequency moving up or down continuously, your mic
is not compatible, and MIC BTN must be set to OFF.
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 heatsink temperature
and allows it to be adjusted. See calibration procedure on pg. 50.
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
ONLY (receive only) temperature sensing, rather than the default (T AND R).
PTT-KEY OFF-OFF (Advanced) Allows selection of RTS or DTR RS232 lines to activate PTT or
key the K3. See pg. 18. Note: If a computer or other device asserts RTS or DTR
while you’re in this menu entry, the K3 will switch to TEST mode (zero power
output) as a precaution. The TX icon will flash as a reminder. To avoidthis, make
sure software applications have 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 andPacTOR. (No effect in CW, FSK D, or PSK D modes.)
A value of 20 or higher may be neededto 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 settingof the
PWR control. If set to PER-BAND, the power level is saved on each band. This
is especially useful with external amplifiers that have varying per-band gain, as
well as with transverters.
REF CAL or
REF xxC
[T]
49380000
Hz
Used to precisely calibrate the K3’s reference oscillator,. VFO A is used to set the
reference oscillator frequency in Hz. There should never be a needto set REF
CAL outside a range of 49377.000 to 49383.000. Typically it will end up much
closer to 49380.000.
Tap 1 to alternate between REF CAL (Method 1 or 2) and REF xxC (Method
3). Tap 2 or 3 to movethe data entry point up or down. See calibration
procedure, pg. 49.
RFI DET NOR NOR enables detection of high RFI at the K3’s antenna in receive mode (see HI
RFI warning, Troubleshooting). Set to OFF to disable the warning.
RS232 4800 b RS232 communications rate in bits per second (bps). During firmware download
(via the K3FW PC program),the baud rate is set automatically to 38400 baud, but
it is then restoredto the value selected inthis menu entry.