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Tables of Contents for Build Your Own Intelligent Amateur Radio Transceiver
Chapter/Section Title
Page #
Page Count
Preface
xiii
8
Acknowledgments
xxi
1 Audio Circuits
1
12
Transmit/receive switching
1
2
Signal flow for reception
3
1
The microphone
4
3
Speech amplifier
7
1
Audio board
8
3
Check it out
11
2
2 Double-sideband voice and CW modes
13
18
Detector/balanced modulator
14
1
Winding the mixer transformers
15
2
BFO/carrier oscillator
17
1
An alternative oscillator
18
2
Keyed carrier generator
20
2
On-the-air already?
22
5
Touch tuning
27
4
3 Low intermediate-frequency circuits
31
16
Receive-mode IF signals
31
2
Transmit-mode IF signals
33
2
More matching and amplification
35
2
Crystal Filters
37
2
Construction and layout tips
39
1
Testing the SSB generator
40
2
Testing SSB reception
42
1
Alternative
42
1
A two-tone audio signal generator
43
4
4 High intermediate-frequency circuits
47
12
An overview
47
2
Bidirectional amplifiers
49
1
More on mixers
50
1
LC filters
50
2
Crystal filters
52
1
Assembling the high-IF board
53
2
Second local oscillators
55
2
Second oscillator containment
57
2
5 Fundamental frequency and control circuits
59
28
High-frequency conversion
59
2
Building transmitter power
61
3
Driver and power amplifier
64
3
Amplifier components
67
8
Bias regulator board
75
1
Filtering
76
3
The transmit/receive switch
79
3
Tying it all together
82
5
6 Signal generation
87
14
Early signal generators
87
2
Vacuum tubes
89
2
Modulation
91
1
Direct synthesis
92
6
Oops, no DDS
98
3
7 Oscillator observations
101
10
Care and feeding of oscillators
101
4
Tuning
105
1
Noise
106
4
Construction and frequency stability
110
1
8 Indirect synthesis
111
18
Feedback and the phase-locked loop
111
3
A logical way to start
114
4
How to remember pulses
118
6
Loop filters
124
5
9 Practical synthesizer problems and solutions
129
14
Expanding the frequency range
129
5
A step at a time
134
2
A slow loop
136
1
Display counters
137
2
Using the counter's output
139
4
10 A synthesizer for your transceiver
143
14
A varible reference frequency
143
1
The digital-to-analog converter
144
2
An ultrafast feedback loop
146
2
The synthesizer board
148
2
Wiring the synthesizer board
150
2
Early testing
152
2
The 80C31 microcontroller as a counter
154
3
11 Completing the output loop
157
12
VCO and amplifiers
158
2
VCO mechanical ideas
160
4
Motor controller
164
2
New ideas
166
3
12 It computes!
169
18
Binary numbers
169
3
Binary arithmetic
172
2
Negative numbers
174
1
What is a microcontroller
175
2
Memory
177
1
Microcontroller hardware
178
3
The computer board
181
6
13 Operator-to-transceiver interface
187
18
Optical shaft encoder
188
7
Panel switches
195
2
LCD and controller module
197
8
14 Programming
205
18
What Is a computer program
205
5
The 80C31/8051 family instruction set
210
4
Input/output and other special functions
214
2
An overview of 80C31 instructions
216
5
Where to go from here
221
2
15 Developing the firmware
223
16
An overview of software tasks
224
3
Let the instructions begin
225
1
Subroutines
226
1
Getting started
227
1
Highlights of low-level code
227
6
Generating synthesizer data
228
1
The fine-tune loop and associated frequencies
229
2
Reading input hardware and configuring output data
231
1
Interrupt and math subroutines
232
1
More program development tools
233
6
Troubleshooting bugs
236
3
16 Transceiver design choices
239
22
Inadvertent electrostatic coupling
239
3
Inadvertent electromagnetic coupling
242
5
Traveling wave and wavelength
245
2
Packaging
247
4
Thermal considerations
249
1
Access and maintenance
250
1
Human engineering
251
3
Fabrication
253
1
VHF, UHF, and microwave applications
254
2
Using the transceiver with transverters
255
1
Higher-frequency PLLS
255
1
Different intermediate frequencies
256
1
Other modifications and ideas
257
4
Change tune-rate selection
257
1
Manual VCO range control
257
1
FM mode
258
3
17 A spectrum analyzer project and test equipment issues
261
18
A basic spectrum analyzer scheme
263
2
Building your own spectrum analyzer
265
1
Converter construction
266
3
IF and second conversion
269
2
Baseband amplifier
271
2
Using other instruments
273
2
Instrument checks
275
4
18 A swept-frequency generator for crystal-filter evaluation
279
14
Getting help
279
2
Why build it?
281
1
An overview
281
6
Operation
287
2
Applications
289
4
19 Power distribution and operating techniques
293
16
Learning code
293
3
Avoiding roadblocks
295
1
See what's happening
296
1
No more paper?
296
2
Single-sideband operating
298
3
Unwanted sounds
300
1
Operating the home-built transceiver
301
2
RF output power issues
303
1
Arranging memories
304
1
Main tuning and the transmitted signal
304
1
Power issues
305
4
Overcurrent protection
306
3
Appendices
309
36
A Main program listing
309
32
B Addresses
341
4
Bibliography
345
2
Index
347
10
About the author
357