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General| DSP | Yes |
|---|---|
| Type | HF/6M Transceiver |
| IF Rejection | >80 dB |
| Image Rejection | >80 dB |
| Display | LCD |
| Weight | 8.5 lbs (3.9 kg) |
| Power Supply | 13.8 VDC |
| Current Consumption (Transmit) | 20 A |
| Modes | SSB, CW, AM, FM |
| Power Output | 100 W (adjustable) |
| Receiver Type | Superheterodyne |
| Receiver Sensitivity | 0.15 μV for 10 dB S/N |
| IF Frequencies | 455 kHz |
| IF Bandwidths | Variable, 50 Hz to 4.0 kHz |
| Current Consumption (Receive) | 1.2 A |
Introductory message from Elecraft.
Explains symbols and text conventions used in the manual.
Describes how to connect power and antennas.
Explains powering on and basic band/mode selection.
Details how to adjust receiver passband filters.
Introduces operation in voice, CW, and data modes.
Explains VFO usage and Receive/Transmit Incremental Tuning.
Details memory storage, message recording, and audio playback.
Explains how to navigate and use the MAIN and CONFIG menus.
Lists the key features of the K3 transceiver.
Describes receiver capabilities like filters and diversity.
Details DSP capabilities and front panel operation.
Describes external interfaces and remote control.
Details sensitivity, dynamic range, and audio output for receivers.
Details output power, duty cycle, and RF speech processing.
Contact methods for support and returning for service.
Details of the product warranty coverage and limitations.
Organizes controls into logical groups on the front panel.
Explains essential controls like power, mode, and tuning.
Details the LCD display and multi-function control operations.
Describes the main tuning knobs and RIT/XIT controls.
Explains VFO icons, filter graphics, and filter/mode icons.
Explains the meaning of the TX, AF, and Multifunction Control LEDs.
Details the PHONES, MIC, and FP ACC connectors.
Describes the function of each primary control switch.
Explains AF/RF gain, filter controls, and normalization.
Details transmit controls and VFO tuning controls.
How to enter frequencies directly using the keypad.
Explains controls for PRE, ATT, AGC, XFIL, NB, NR, etc.
Describes A/B, BSET, REV, SPLIT functions.
Explains frequency memory storage and recall.
Details the DVR functions for recording and playback.
Details RIT/XIT on/off and CLR functions.
Organizes rear panel connectors by function and describes keying inputs.
Details ANT1, ANT2, AUX RF, and DC connectors.
Information on KPA3, KIO3, and KXV3 option module connectors.
Details on the KIO3 audio and digital I/O module.
Details the RS232 port and its wiring.
Explains the ACC connector pinouts and FSK input.
Explains band output signals and transverter control settings.
Explains transmit inhibit and KRC2 band decoder.
Explains speaker, headphone, and microphone connections.
Explains the computer line input and output connections.
Steps for powering on and using tap/hold switch functions.
How to access and navigate MAIN and CONFIG menus.
Assigning functions to PF and memory switches.
Tapping BAND, MODE, ANT, and ATU controls.
Explains VFO A, VFO B, A/B, REV, and SUB functions.
Covers adjusting RIT/XIT offset and CLR function.
Adjusting AF and RF gain levels.
Installing and selecting crystal filters.
Using SHIFT, WIDTH, HICUT, LOCUT controls.
Using filter presets and setting normalization values.
Selecting FIR or IIR filters for DSP.
Enabling and adjusting DSP and IF noise blankers.
Using NR for random background noise reduction.
Using auto and manual notch filters for carriers.
Selecting transmit filters based on mode.
Details transmit controls and VOX, PTT, QSK modes.
Performing transmit tests without broadcasting.
Using external ALC and per-band power control.
Setting TUNE power and transmitter RF delay.
Selecting modes and choosing microphone input.
Monitoring voice and adjusting mic gain/compression.
Setting transmit power for voice modes.
Configuring VOX gain and ANTIVOX.
Recording and playing voice messages.
Specifics for AM and FM transmit and receive.
Using MON, PITCH, QSK, TEST, and CW modes.
Using CWT, SPOT, and CW text decode.
Recording and playing CW messages.
Overview of available data modes and connections.
Choosing between DATA A, AFSK A, FSK D, PSK D.
Adjusting mark tone/shift for data modes.
Using DTF and setting FSK transmit polarity.
Setting gain for data modes and using AMTOR/PacTOR.
Configuring CW text decode parameters.
Configuring data mode text decode parameters.
Sending CW messages for data transmission.
Using CWT and SPOT for signal tuning.
Applying stereo effects, dual passband filters, and EQ.
Using SPLIT, ESSB, and KBPF3 filters.
VFO B alternate displays and alarm functions.
Using SUB, BSET controls and selecting sub receiver antennas.
Setting independent bands and diversity receive.
Uses for RX ANT IN/OUT jacks with KXV3.
IF output and transverter connection details.
Setting up and initiating band scanning.
Manually tuning or scanning memory ranges.
General diagrams of antenna signal paths.
Antenna routing for a basic K3 setup.
Antenna routing with KXV3 option installed.
Antenna routing with KAT3 ATU option installed.
Antenna possibilities with both KAT3 and KXV3.
Controlling the K3 via RS232 or USB, including commands and power control.
Using RS232 for CW/DATA text communication.
Descriptions of available K3 option modules.
How to obtain and install firmware updates and perform self-tests.
Installing and setting up crystal filters, including bandwidth.
Adjusting filter offsets and enabling filters per mode.
Compensating for narrow filter loss with gain.
Selecting transmit filters for each mode.
Enabling installed K3 option modules.
Key configuration settings like mic gain, AF gain, time, and VFO setup.
Adjusting the spin rate of the VFO knobs.
Procedure for replacing the RTC battery.
Calibrating the main and sub receiver synthesizers.
Calibrating the wattmeter for accurate power readings.
Compensating for per-band transmit gain variations.
Compensating for per-band transmit gain variations.
Calibrating the K3's reference oscillator.
Calibrating front panel and PA temperature sensors.
Calibrating the S-meter for accurate readings.
List and description of MAIN menu parameters.
Explanation of tech mode and sub receiver settings.
Configuration settings specific to the sub receiver.
Settings for CW keying, data modes, and DIGOUT1.
Setting filter bandwidth, offset, enables, and loss compensation.
Configuring transmit filters, FM deviation, and option modules.
Settings for LINE OUT, MIC BTN, NB SAVE, PA TEMP, PTT-KEY, PTT RLS.
Settings for PWR SET, REF CAL, RFI DET, and RS232.
Settings for S-meter, SPLIT, speakers, and squelch.
Settings for test modes, sync data, and clock.
Settings for TXDLY, TXESSB, TXINH, TXGN, TXG VCE, VCO MD.
Settings for VFO B->A, VFO CRS/CTS/FST/IND/OFS, WMTR, XVX ON.
Configuring RF, IF, PWR, OFS, and ADR for transverter bands.
Troubleshooting general issues like error messages and power problems.
Troubleshooting transmit-related issues.
Troubleshooting receive problems like no signal or RFI.
Resetting parameters to default or restoring saved settings.
Procedure for de-installing modules to identify faults.
Overview of the main RF Printed Circuit Board.
Details LPFs, amplifier modules, and BPFs.
Details IF circuitry, crystal filters, and the second IF stage.
Explains support circuitry and the noise blanker system.
Description of antenna input modules and KIO3 module.
Describes the front panel and DSP board assembly.
Details the Digital Signal Processing capabilities.
Describes the reference oscillator and synthesizer modules.
Instructions for safely opening the K3 and handling components.
Filter slot locations and installation guidelines.
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