QRP Labs QCX-mini Manuals

Manuals and User Guides for QRP Labs QCX-mini. We have 3 QRP Labs QCX-mini manuals available for free PDF download: Assembly Instructions Manual, Operating Instructions Manual

QRP Labs QCX-mini Assembly Instructions Manual (133 pages)

5W CW Transceiver kit

Brand: QRP Labs | Category: Transceiver | Size: 11.75 MB

Table of Contents
2
Introduction
4
Install Capacitors C5 and C8
39
Install 1Uf, "105" Capacitors C21, and C22
41
Install 30Pf Trimmer Capacitor C1
51
Install 2X5-Pin Male Pin Header Connector
68
Install Tactile Switch Buttons
73
- Install Gain Control Potentiometerr36
  73
Install 11Mm Nylon Hex Spacer
74
Fit Controls PCB to Main PCB
75
10Uf Input Capacitor C38
76
Install Microcontroller
76
Plug Together the Two Boards
80
Connections for Basic Operation
80
Notes on Fault-Finding for the QCX-Mini
81
- Adjustment and Alignment
  82
Installation in the Optional QCX-Mini Enclosure
90
QCX-Mini GPS Interface and PTT Output
93
- QCX-Mini CAT Port
  94
Circuit Design of the QCX-Mini
95
- Block Diagram and Summary
  95
- Circuit Diagram
  95
- Synthesized Oscillator
  98
- Transmit/Receive Switch
  99
- Band Pass, Phase Splitter, QSD and Pre-Amps
  100
  - 90-Degree Audio Phase Shift
    101
  - CW Filter
    102
  - Audio Amplifier
    102
  - Transmit Signal Routing and PA Driver
    104
  - Class-E Power Amplifier
    105
  - Low Pass Filter
    107
  - Key-Shaping Circuit
    107
  - Microcontroller
    108
  - Optional GPS Interface
    114
    
    In Circuit Programming (ISP) Interface
    115
- Test Equipment
  115
  - Voltage Regulator
    117
Fault-Finding
118
- Blank LCD or Blocked LCD
  118
- No Back-Light at All
  118
- A Row of Blocks Appears on the Top Row
  118
- DC Voltage Readings
  118
- RF Power Output Check
  121
- Measurements
  123
- Equipment
  123
- Transceiver Current Consumption
  123
Band Pass Receiver Input Filter Characteristics
126
- Quadrature Sampling Detector Bandwidth
  129
- CW Filter Response
  130
- Unwanted Sideband Rejection
  131
- Resources
  133
- Document Revision History
  133

QRP Labs QCX-mini Assembly Instructions Manual (121 pages)

Brand: QRP Labs | Category: Transceiver | Size: 12.25 MB

Table of Contents
2
Introduction
4
- Parts List
  5
Assembly - General Guidelines
10
- Inventory Parts
  22
Wind and Install Transformer T1
23
Block Diagram and Summary
83
- Circuit Diagram
  83
- Synthesized Oscillator
  86
- Transmit/Receive Switch
  87
- Band Pass, Phase Splitter, QSD and Pre-Amps
  88
- 90-Degree Audio Phase Shift
  89
- CW Filter
  90
- Audio Amplifier
  90
- Transmit Signal Routing and PA Driver
  92
- Class-E Power Amplifier
  93
- Low Pass Filter
  94
Key-Shaping Circuit
95
- Microcontroller
  96
- Optional GPS Interface
  102
- In Circuit Programming (ISP) Interface
  103
- Test Equipment
  103
- Voltage Regulator
  105
- Fault-Finding
  106
Blank LCD or Blocked LCD
106
- No Back-Light at All
  106
- A Row of Blocks Appears on the Top Row
  106
- DC Voltage Readings
  106
- RF Power Output Check
  109
- Measurements
  111
- Equipment
  111
- Transceiver Current Consumption
  111
- Transmitter Power Output
  112
- Class-E Power Amplifier Drain Waveform
  113
RF Envelope Key-Shaping
113
Low Pass Transmitter Harmonic Output Filter Characteristics
114
Band Pass Receiver Input Filter Characteristics
114
Quadrature Sampling Detector Bandwidth
117
CW Filter Response
118
Unwanted Sideband Rejection
119
Operation Reference "Cheat Sheet
120
Resources
121
Document Revision History
121

QRP Labs QCX-mini Operating Instructions Manual (52 pages)

5W CW Transceiver kit

Brand: QRP Labs | Category: Transceiver | Size: 0.55 MB

Table of Contents
2
1 Overview of Features

3
2 Display Elements

5
3 Operator Controls

6
- Tune Rate
  6
- Keyer Speed
  7
- Rit
  7
- VFO Mode
  8
- VFO A/B Operations
  8
- Frequency Presets
  8
- Automated Message Transmission Mode
  9
4 Menu System

10
- Saving Current Operating Parameters (VFO Frequency Etc)
  10
- Types of Configuration Menu Item
  11
- Editing a Configuration Menu Parameter
  11
- Editing a LIST Parameter
  12
- Editing a BOOLEAN Parameter
  12
- Editing a NUMBER Parameter
  12
- Editing a TEXT Parameter
  13
- Frequency Presets Menu
  14
- Messages Menu
  14
- VFO Menu
  15
- Keyer Menu
  17
- Decoder Menu
  21
- Beacon Menu
  23
- Other Menu
  30
- Alignment Menu
  34
- Test Equipment
  38
- CAT Control Commands (PC Remote Operation)
  41
- Operation Reference "Cheat Sheet
  51
5 Operation Reference “Cheat Sheet”

52
6 Resources

52
7 Document Revision History

52

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QRP Labs QCX-mini Assembly Instructions Manual (133 pages)

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QRP Labs QCX-mini Assembly Instructions Manual (121 pages)

Table of Contents

QRP Labs QCX-mini Operating Instructions Manual (52 pages)

Table of Contents

1 Overview of Features

2 Display Elements

3 Operator Controls

4 Menu System

5 Operation Reference “Cheat Sheet”

6 Resources

7 Document Revision History

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