要翻译的内容如下：
http://www.hanssummers.com/radio/k0iye/index.htm已经翻译好的用中文标识！
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从矿石收音机到边带电台
revision 10, july 2006
自制业余电台的向导
作者：frank w. harris, k0iye
版权所有 © frank w. harris, 2002, 2004, 2006
注意：西班牙语版本请见
http://www.ea2ry.com/libroradio/ 需要adobe acrobat阅读器
目录：
前言
chapter 1
the fascination of radio
* exploring the shortwave bands
* growing up in the morse code era
* the joy of building it yourself
* a brief history of radio communication
* henry, maxwell, hertz, tesla and marconi.
* fessenden, edison, flemming, deforest and armstrong
* the sinking of the rms republic and the birth of ham radio
* ham radio in the last 80 years
* becoming a radio amateur
chapter 2
homebuilding amateur radio equipment
* what qualifies as homebuilding?
* when homebrewing is not appropriate
* barriers to modern homebuilding
* time, frequency stability and lead inductance
* basic electrical knowledge
* magnets & static electricity
* voltage, current, resistance, energy and power
* (illustrated with drawings of water & mechanical analogies)
* conductors, insulators and semiconductors
* capacitors, inductors, transformers & alternators
* home power distribution, transformers at low and high frequencies
chapter 3
setting up an electronics workshop
* r&d as recreation
* how to build radios (or anything else) in your basement
* persistence, read books, keep a notebook, & work in small increments
* minimum tools needed
* the arrl amateur radio handbook
* soldering irons and small tools
* drills & thread taps
* wood carving gouges for making pc boards
* >50 mhz oscilloscope
* frequency counter
* quality multimeter
* lab power supply
* calculator
* lab notebook
* collection of electronic junk
* parts catalogs
* capacitance meter
* test leads & socket boards
* nice-to-have tools
* rf & audio generators, spice software & spectrum analyzer
chapter 4
hertzian waves in the basement
* the nature of radio waves
* mechanical and lc electrical oscillators
* antenna and transmission line theory
* crystal set components
* lc tuner
* pn junction diode detectors
* p-type and n-type semiconductors
* detection of am signals
* homebuilding the parts for a crystal set
* the jamestown diode
* the caribou headphone
* revisiting crystal sets in 2006
* learning to troubleshoot
* selective tuning
* recreating hertzs radio equipment
* transmitting and receiving as simply as possible
* the 1880 ten-meter communicator
* proving that radio waves exist and arent just capacitive or magnetic coupling
* demonstrating standing waves to measure frequency
* building homebrew transistors
* bipolar transistors, pnp and npn
* demonstrating voltage gain
* the boulder rock radio
chapter 5
getting on the air - deciding what to do first
* how to earn a license
* the rules of the homebuilding game whatever makes you happy!
* picking an hf band
* getting acquainted with the hf ham bands, 160 10 meters
* instant high quality hf communications
* vhf/ uhf handheld transceivers
* building an antenna
* dipoles, regular and folded
* multi-band dipoles
* 80 meters when you dont have room for a dipole
* the curtain rod vertical
* a multi-band vertical antenna
* lightning protection
chapter 6
building a qrp homebrew
* a single-band, crystal-controlled, qrp module
* the transmitter mainframe
* hf construction methods
* making your own pc boards
* "dead bug" and "gouged board" construction
* superglue "island boards"
* coax jumpers
* shielded boxes
* the complete qrp crystal-controlled transmitter
* transistor amplifiers and oscillators
* how an amplifier becomes an oscillator
* class a and class c amplifiers
* stabilizing the operating point, bypass caps and emitter resistors
* quartz crystals the key to frequency stability
* the 40 meter qrp circuit
* oscillator and buffer
* inductors, rf transformers and impedance matching
* tapped toroid inductors
* how to wind them (and mistakes you might make)
* the final amplifier stages for the qrp
* tuned versus broadband - use both for best results
* bifilar wound, broadband transformers
* how to wind them (and how you might screw up)
* ferrite bead rf chokes, expensive rf power transistors, heat sinks & output connectors
* conquering inductors
* calculating resonance
* calibrating trimmer capacitors
* calculating turns on powdered iron and ferrite toroids
* chebyshev output low pass filters
* keying your qrp
* mosfet power transistors
* a "spot switch" for the qrp
chapter 7
building a code practice receiver
* a simple, direct-conversion receiver
* a great first project for a new ham
* excellent sensitivity and good stability
* poor selectivity
* adding 700 hz audio filtering
* high pass and low pass filters
* cascaded bandpass filters increase selectivity
* operational amplifiers
* building with integrated circuits
* am broadcast filter
* getting rid of the image
chapter 8
power supplies
* line powered power supplies
* power supply safety features
* isolation, 3-conductor cords, fuses, switches, ratings
* supply performance and regulation
* rectification, ripple, chokes, capacitors, & bleeders
* zeners, linear regulators, switching regulators
* a qrp regulated power supply
* a battery power supply for the radio shack
* solar cell charging, low drop-out regulators
* battery powered shack lighting
chapter 9
accessories for the transmitter
* a straight key
* an electronic bug
* building dummy loads
* "t" type antenna coupler
* a low pass filter
* how to stay legal with a homebrew transmitter
* antenna and power relays
* homebrew qsl cards
chapter 10
variable frequency oscillators
* drift is a big deal today
* low frequency vfos drift less than high frequency vfos
* jfet transistors
* the oscillator circuit
* the buffer, final amplifier and output filter
* the 50 secrets of avoiding drift
* jfets, single-side pc boards, cast metal box, multiple npo caps, small variable caps, precision voltage regulation and
more
* vernier tuning
* varactor tuning elements advantages and disadvantages
* a precision power supply
* a voltage doubler power supply for battery use
* square wave generator with a multivibrator
* squaring up the square wave
* charge pump, diode/ capacitor voltage doubler
* schottky diodes for efficiency
* temperature compensation methods
* positive coefficient capacitive trimmer compensation
* how to adjust the compensator
* thermistor/ varactor temperature compensation
chapter 11
building a vfo for the higher bands (pmos)
* old approaches that no longer work
* frequency multiplication
* high frequency oscillators
* premix oscillator method of frequency translation
* a vfo-controlled qrp module
* crystal oscillators are stable, arent they?
* crystal oscillator circuits
* butler oscillators and big crystals
* mixers, bipolar transistor and dual-gate mosfet
* optimum drive requirements
* direction of tuning, drift error cancellation
* multistage filters and filter/amplifiers
* the qrp final amplifier stages
chapter 12
final amplifiers
* the basic features of a modern linear power amplifier
* it looked easier in the handbook
* linear "noise mode" operation
* a tuned 50 watt class b amplifier
* ferrite balun transformers
* an untuned, sort-of-linear, class b, amplifier
* keying the 50 watt transmitter
* a linear class ab amplifier, this time for sure
* single sideband (ssb) needs a linear
* biasing without thermal runaway
* clamp diodes prevent runaway
* mechanical construction
chapter 13
自制一个短波接收机
* 消失的艺术
* 什么是一个合理的目标？
* 一个“性能足够”的接收机
* 有这么复杂吗？
* 规划你的接收机
* superhetrodynes为cw提供晶体滤波器
* 为什么不能单转换？
* 从单波段单转换的superhetrodyne开始。
* 现代接收机怎么实现的？
* 使用同轴电缆连接屏蔽块来做接收机
* 80米波段的预选器
* 由一个已调谐的transmatch来半自动接收80米波段与160米波段
* vfo
* 有魔力的混频器
* 混频器产生了太多静电噪声……尖叫声、呻吟声与喧哗声
* 由分立器件做的实际的自制混频器看起来容易
* 双路mosfet混频器
* 所有的双路mosfet各路都不是完全对等的
* cw用的基本的阶梯滤波器
* 所有的9.000mhz晶体都不是完全一样的
* 使用bfo振荡器来匹配你的晶体
* 使用旋钮开关切换你的滤波器
* if放大器
* 双路if放大器的教训
* 射地-基地放大器放大器——可变增益系数q
* 使用agc并不是因为奢侈
* 检波器
* 任何事都起了点作用
* af放大器是信号动态范围的一个重要部分
* 在收到强信号时保护好你的耳朵
* 想要怎样的hi-fi？
* 驱动喇叭
* 其它hf波段的转换器
* 晶体振荡器
* 波段开关
* 给接收机供电
* 使用线形电源，不要用开关电源
chapter 14
old-tech vacuum tube radio
* how old can radio technology be and still be used on the air today?
* why bother with vacuum tubes?
* glowing filaments, colored plasmas & jules verne glass envelopes
* power supplies for tubes
* high voltage power supply safety
* the old-tech qrp transmitter
* vacuum tube amplifiers
* the three roles of the triode filament
* rf sinewave oscillator
* quartz crystals
* triode and pentode oscillators
* old-tech voltage regulation big, crude, expensive, but beautiful
* the travails of triode tubes
* the oscillator and buffer
* the final amplifier triodes chirp
* the transmitter power supply
* an inadequate supply from a 1935 radio
* a good power supply made from cheap, modern, boring parts
* how to check out junk power transformers
* a complex but adequate supply made from ancient parts
* it works! no one suspects its old and its a success on todays 40 meter band
* an old-tech receiver
* a super regenerative receiver made from ancient tubes
* the power supply
* super-regen on the modern hambands
* lots of fun, but not up to modern qrm & qrps - back to the drawing board!
chapter 15
the nobel prize for sideband
* it cant be that hard! want to bet?
* the sideband generator how it works
* the 9 mhz oscillator / amplifier
* the audio amplifier
* the balanced modulator
* building your own crystal ladder filter
* decoupling the power supply leads
* getting rid of rf feedback - rf filtering for all inputs
* tuning and testing
* using the generator for am modulation and cw
* moving the 9 mhz ssb signal to a hamband
* move the ssb only once!
* no wonder most ham rigs are tranceivers
* moving the 9 mhz signal to the difficult hf hambands
* move the vfo first, then mix it with the ssb 9 mhz.
* pick your oscillator and vfo frequencies carefully
* hearing your own vfo in the receiver
* the hardest band 17 meters
* covering the widest band 10 meters
* a linear sideband qrp, vfo-tuned module
* all stages must be linear and low distortion
* all gain stages should be broadband to prevent oscillation
* sometimes high pass filter output is needed & not the usual low pass
* checking out the generator
* driving a 50 watt linear amplifier
chapter 16
ancient modulation
* defining amplitude modulation
* modulating vacuum tube final amplifiers
* plate, screen & cathode modulation
* a "collector modulator"
* converting a mosfet keyer into a modulator
* generating am with an ssb balanced modulator
* compensating for non-linearity
* compression by accident
* you probably don't need to build a compressor
* ham tv - the old way
* fun with an ancient flying spot scanner tv camera
in conclusion:
homebrew ham radio is never complete - when it works perfectly and does all the latest stuff, the hobby is over. not likely.
long live homebuilding!
thanks for reading my book.
73's frank w. harris, k0iye
