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ELECRAFT K3S User Manual

ELECRAFT K3S
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ELECRAFT
®
K3S
HIGH-PERFORMANCE
160 6 METER TRANSCEIVER
OWNERS MANUAL
Revision A1, May 26, 2015
Copyright © 2015, Elecraft, Inc.
All Rights Reserved

Table of Contents

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ELECRAFT K3S Specifications

General IconGeneral
Image rejection>80 dB
IF Frequencies8.215 MHz, 15 kHz
Current drain TX20 A
ModesSSB, CW, AM, FM
Output Power100 W
Supply voltage11-15 VDC

Summary

Quick-Start Guide

Connections

Filter Controls

Details how to adjust receiver passband using SHIFT, LO CUT, HI CUT, WIDTH.

Voice Modes

Guides operation for SSB, AM, and FM modes, including settings.

CW Mode

Explains CW operation including keying, sidetone, and break-in settings.

Data Modes

Covers operation for data modes like RTTY and PSK31.

VFOS and RIT/XIT

Transmit, ATU, and Antenna Controls

Details controls for transmitter, ATU, and antenna selection.

Preamp and Attenuator

Explains how to use receiver preamplifiers and attenuators.

NB, NR, and Notch

Covers noise blanking, noise reduction, and notch filtering.

SPLIT, BSET, and SUB

Explains split operation, sub receiver settings, and BSET functions.

Introduction

Connectivity

Details remote control, audio jacks, and firmware upgrade options.

Specifications

RECEIVER (Main and Sub)

TRANSMITTER

Customer Service and Support

Front Panel

Display (LCD)

Front Panel Connectors

Primary Controls

Filter Controls

Transmit Controls

VFO Tuning Controls

Receiver Control & Misc. (Lower Rows)

Memory Controls

RIT and XIT Controls

Rear Panel

KIO3B (Dig./AF) and KXV3B (RF)

Details the KIO3B and KXV3B module interfaces.

Control and Audio Connections

USB Port (Control and Audio)

Explains USB port use for PC control, audio interface, and PTT/CW keying.

RS232 / P3 Panadapter Port (RJ45)

ACC (Accessory I/O)

Transverter Control

LINE IN

LINE OUT

Basic Operation

Using Tap/Hold Switches

Explains the tap and hold functionality of the K3S switches.

Initial Power-Up

Guides the user through the initial power-up sequence.

Using the Menus

Explains how to navigate and use the MAIN and CONFIG menus.

Programmable Functions

Guides assigning menu entries to function switches for quick access.

Band and Mode Selection

Antenna Selection and Matching

Using the VFOs

RIT and XIT

Receiver Setup

Preamp and Attenuator Controls

Details using receiver preamps and attenuators.

Crystal Filter Selection

Guides the installation and selection of crystal filters.

Filter Passband Controls

Filter Presets (I/II)

Filter Normalization (NORM)

Narrow DSP Filter Selection

Reducing Interference and Noise

Noise Blanking

Explains how to use DSP and IF noise blankers.

Noise Reduction

Details using the noise reduction feature.

Notch Filtering

Covers auto and manual notch filter operation.

Transmitter Setup

Multifunction Transmit Controls

VOX, PTT, and QSK

External ALC

Per-Band Power Control

Voice Modes (SSB, AM, FM)

Mic Gain and Compression Settings

Voice Mode VOX Setup

Digital Voice Recorder (DVR)

AM Operation

FM Operation

CW Mode

Basic CW-Mode Controls

Details CW controls like MON, PITCH, AGC, QSK, and VOX.

SPOT and Auto-Spot

Explains manual and automatic spotting for CW tuning.

CW Text Decode/Display

Details enabling and using CW text decoding.

APF and Dual Passband CW (DUAL PB)

Explains APF and Dual Passband filtering for CW.

CW Message Record/Play

Covers recording, playing, and erasing CW messages.

Data Modes

Data Mode Connections

Details connecting computers for data modes via soundcard or RS232.

Mark/Shift and Pitch Selection (PITCH)

Explains setting mark tone and shift for data modes.

RTTY Dual-Tone Filter (DTF)

AMTOR/PacTOR

Advanced Operating Features

Text Decode And Display

Explains enabling and using text decode for CW, PSK, RTTY.

CW Text Decode Setup

Guides the setup process for CW text decoding.

DATA Text Decode Setup

Guides the setup process for data mode text decoding.

CW-to-DATA

Tuning Aids: CWT and SPOT

Audio Effects (AFX)

APF and Dual-Passband CW Filtering

Receive Audio Equalization (EQ)

Transmit Audio Equalization (EQ)

SPLIT and Cross-Mode Operation

Extended Single Sideband (ESSB)

General-Coverage Receive

Alarm and Auto Power-On

Using the Sub Receiver

BSET: Additional Sub Receiver Settings

Explains how to use BSET to configure sub receiver settings.

Sub Receiver Antenna Selection

Details antenna options for the sub receiver.

Diversity Receive

SPLIT Mode with the Sub Receiver

Explains using SPLIT mode with the sub receiver installed.

Receive Antenna In/Out

Buffered I.F. Output for Panadapters

Using the 100-550 kHz Range

Using Transverters

Scanning

Channel Hopping

Main and Sub Receiver Antenna Routing

KAT3A ATU and Antenna 2

Preamp 2 Limitations

Remote Control of the K3S

CW/DATA Terminal Applications

Options and Accessories

Firmware Upgrades

Forcing a Firmware Download

Procedure for recovering from failed firmware loads.

Configuration

Crystal Filter Setup

Guides setting up crystal filters, including bandwidth and offset.

Filter Bandwidth

Details setting filter bandwidths for each crystal filter.

Filter Frequency Offset

Explains setting crystal filter frequency offsets.

Receive Filter Enables (Per-Mode)

Filter Loss Compensation

Transmit Crystal Filter Selection (Per-Mode)

Module Enables

Miscellaneous Setup

VFO Setup

Real Time Clock Battery Replacement

Calibration Procedures

Wattmeter

Details wattmeter calibration procedures for different power levels.

Low-Power (5 W) Wattmeter Calibration

Step-by-step guide for calibrating the 5W wattmeter.

High Power (50 W) Wattmeter Calibration

Guide for calibrating the 50W wattmeter on K3S/100.

Milliwatt-meter Calibration (XVTR OUT)

Transmitter Gain

Low-Power (5 W) TX Gain Calibration

Procedure for calibrating transmit gain at low power.

High Power (50 W) TX Gain Calibration

Milliwatt TX Gain Calibration (XVTR OUT)

Reference Oscillator

S-Meter and RF GAIN Control

S-Meter Calibration

Procedure for calibrating the S-meter.

Menu Functions

MAIN Menu

Lists and describes the MAIN menu entries.

CONFIG Menu

Sub Receiver Settings

Configuration options specific to the sub receiver.

FLx BW

FLx FRQ

FLx GN

FLX ON

FLTX{md}

REF CAL [T]

SIG RMV [T]

Troubleshooting

General

Common issues like error messages, terminal mode, and power problems.

Transmit

Receive

Parameter Initialization

Module Troubleshooting

Error Messages (ERR xxx)

Lists and explains common error messages and their causes.

Module Removal

Provides a procedure for safely removing and reinstalling modules.

Error Message List

Theory Of Operation

RF BOARD

Details the main RF board and its functional areas.

First I.F. Stages

Crystal Filters and 2nd I.F.

Noise Blanker

KAT3A (ATU) and KANT3

KIO3B (Audio/Digital I/O)

Front Panel and DSP

Front Panel Board

DSP Board

KREF3 (Ref./2nd LO)

KSYN3A (Synthesizer)

Firmware

K3S Block Diagram

Appendix A: Crystal Filter Installation

Installation Procedure

Step-by-step instructions for installing crystal filters.

Rules regarding where these filters can be installed

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