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QRP Labs QCX-mini CW User Manual

QRP Labs QCX-mini CW
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QCX-mini CW
Transceiver
QCX-mini 5W CW Transceiver kit assembly instructions
The “QCX-mini”: a single band, high performance 5W
CW Transceiver with built-in alignment and test
equipment, iambic keyer, WSPR beacon mode, and
more...
Designed and produced by QRP Labs, 2017-2020
pictured with:
Palm Radio pico paddle http://palm-radio.de
and the XYL’s old iPhone’s earbuds
 1

Table of Contents

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QRP Labs QCX-mini CW Specifications

General IconGeneral
BrandQRP Labs
ModelQCX-mini CW
CategoryTransceiver
LanguageEnglish

Summary

1. Introduction

2. Parts list

3. QCX-mini Assembly Guide

General Assembly Guidelines

Essential guidelines and tips for a successful kit assembly process.

Component Preparation and Installation

Inventory, preparation, and installation of all kit components, including toroids.

Board Integration and Enclosure Fit

Connecting assembled boards and fitting the unit into its optional enclosure.

Basic Operation Connections

Detailing the necessary connections for powering and operating the transceiver.

Troubleshooting and Alignment

Guidance on diagnosing issues, performing adjustments, and final tuning.

GPS and CAT Interface Installation

Installing and explaining the GPS interface and CAT port functionality.

4. Circuit Design Overview

Block Diagram and Synthesizer

Overview of the transceiver's block diagram and the synthesized oscillator.

Receiver, Transmitter, and Amplifier Stages

Description of receiver stages, filters, and the Class-E power amplifier.

Microcontroller, Key-Shaping, and Test Equipment

Functions of the microcontroller, key-shaping, and integrated test equipment.

5. Fault-Finding and Performance

Diagnosing Common Faults

Guidance on diagnosing and resolving common issues with the QCX-mini.

RF Power Output and Measurements

Steps for checking RF power output and performance measurements.

6. Operation and Resources

Operation Reference and Controls

Guide to controls and accessing the configuration menu.

Online Resources and Support

Links to QRP Labs website, forums, and revision history.

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