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Автор: Administrator
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07.10.2010 16:23 |
Подборка Интернет-источников по традиционной схемотехнике
Русскоязычные
Англоязычные
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| Electronic and radio theory radio receiver basics, crystal radio set, tuned radio frequency TRF variety, superheterodyne receiver |
| Explore inside of a radio investigates the inside of a cheap beach radio |
| FM radiostations in Belgium |
| FM Stereo Radio MPX with RDS |
| FM Stereo Radio MPX with RDS pdf file |
| Frequency devices design guide, solving real world signal conditioning problems |
| How radio works explore the technology of radio |
| Radio calculator scientific calculator and universal converter for radio communication; |
| Radio receiver tuning, frequency conversion, modulation, demodulation |
| Radio receiver handbook radio receivers, from crystal set to stereo, Radio Receiver, The Antenna, The Ground, Radio Receiver with TDA7050 IC, Radio Receiver with LM386 IC, Radio Receiver with Increased Sensitivity Audio Amplifier, Universal Audio Amplifier, Receiver with HF Amplifier, Direct Receiver with Drain Detector, Direct SW Receiver for AM, AM-SSB & CW Signals, Miniature Receiver with ZN414 (ZN414Z) IC, Direct (TRF) FM Receivers, FM Receiver with Audio Amplifier, FM Receiver with One Transistor and Audio Amplifier; |
| Radio receiver technology Radio receiver technology, measurement techniques, radio propagation, radio and electronics history, amateur radio |
| RDS/EON Car Radio System a computer controlled high-end AM/FM car radio system with RDS/RBDS decoding. It is based on a single 8051 family microcontroller (P83CE528) and various I2C-bus controlled peripherals |
| RF tutorials for EEs mixers, RF directional couplers, impedance transformers |
| Single-Chip PLL-FM-Receiver Single Superheterodyne PLL-FM-Receiver, Low Noise Amplifier (LNA), Input Impedance Matching & Noise, Considerations, Input matching, Filtering, Implementation, LNA Core, Input and Output filters, Mixer, Implementation, Local Oscillator, Oscillator, Tuning, Buffers, PLL Frequency Synthesizer, Crystal Oscillator (XO), Intermediate Frequency Amplifier, IF Amplifier Design, FM Demodulator Design, Phase Shift Network, LNA, Mixer, Local Oscillator, PLL, Xtal Oscillator, IF Amplifier, Phase Shift Network, Demodulator Demodulator Output |
| TEA 6848H TEA 6848H is for small dimensioned Electronic Tuned AM/FM Car Radio receiver, with advantage in application-area’s where the FM band is crowded, pdf file |
| Telecommunication Types of Signals, Signal Analysis, Fourier's Theorem, Analogue Modulation, DSB/SC, SSB/SC, FM, Phase Modulation, Analogue signal processing, Ideal Low-pass Filter, Real and Ideal Filters, Frequency conversion, Digital modulation, Pulse width, Pulse position modulation, Pulse code modulation, PCM, Communication Systems, FDMA, TDMA, Basic fiber |
| Time and frequency articles frequency synthesis and conversion, Phase Noise/ AM noise, oscillator circuits, power supply circuits, RF amplifier circuits, shock and vibration |
| VHF community radio electronics the concepts involved in radio broadcasting relevant to the community radio operator on VHF FM, a typical VHF FM transmitter system |
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Williamson labs communications, computers, antennas, data sheets, decoupling, electronic design automation, electromagnetic compatibility, radio, amplifiers, inductors, operational amplifiers, op amps, optics, oscillators, oscilloscopes, rf, modulation, heterodyne, mixer, double sideband, dsb, single sideband, ssb, amplitude modulation, am, frequency modulation, fm, shielding, sound, piezo, seebeck, peltier, video, vga, vcr, raster, tv, television, ntsc, pal, rs-170, rs-170a, bipolar transistors, bjt, field effect transistors, fet, mosfet,
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| AM-FM Ceramics 450 - 470 kHz AM Filters, 10.3 - 11.5 MHz FM Filters |
| AM radio receiver pdf file |
| AM radio receivers How AM radio receivers work, An AM Radio Realized with Only Discrete Bipolar Transistors, pdf file |
| AM SUPERHETERODYNE RECEIVERS IF section, AM receivers, diode detector |
| AM transmitters and receivers AM communication, AM transmitters and receivers, pdf file |
| AM transmitters and receivers AM communication, AM transmitters and receivers, pdf file |
| AM/FM car radio receivers How AM radio receivers work, How FM radio receivers work, IF amplifier/demodulator for FM car radio receivers, AM/FM radio receiver circuit, Front-end and PLL synthesizers for car radios |
| Ceramic filters and resonators How Ceramic filters and resonators work |
| COILS AND TRANSFORMERS Coils, Transformers, Working principles and characteristics of transformers |
| Conversion gain and noise temperature heterodyne mixer, hetrodyne receiver |
| Crystal oscillators How Crystal oscillators work |
| Crystal radio optimal loading of audio transformers for crystal set use |
| Crystal radio crystal radio, how the crystal radio work |
| Crystal radio plans, Cristadyne links |
| Crystal receivers crystal receiver history, crystal receiver construction projects |
| Crystal set |
| Crystal technology |
| Demodulation of AM signals envelope detector, pdf file |
| Demodulation of AM signals Demodulation of AM signals, Notes on the Demodulation of AM Signals, pdf file |
| Demodulation of AM signals Demodulation of AM signals, The DSBSC modulation is one type of modulation in which the information (or message) is carried on the amplitude of a sinusoidal signal. Another type of this modulation is what we can call Double Side Band Including Carrier or Full AM (or simply AM), doc file |
| Envelope detector how the envelope detector work |
| Envelope detector envelope detector, how the envelope detector work |
| Feedback oscillators and lasers phase shift oscillator, RC oscillator, optical oscillator |
| FM demodulation FM demodulation, Quadratur demodulator, Foster-Seeley discriminator, pdf file |
| FM demodulation FM demodulation, Quadratur demodulator, Foster-Seeley discriminator |
| FM demodulator without tuner FM tuner, processing FM signal with a Fourier transformation |
| FM Detectors (Discriminators) FM detectors convert the frequency variations of the carrier back into a replica of the original modulating signal. There are 5 basic types of FM detectors: Slope detector, Foster-Seely Discriminator, Ratio Detector, Quadrature Detector, Phase-Locked Loop (PLL) detector |
| FM radio receivers FM radio receivers, FM communication techniques |
| FM receiver FM Receiver with one Transistor and Audio Amplifier |
| FM receivers FM receivers, FM communication techniques |
| FM stereo FM stereo signal, RDS, FM communication techniques, Radio Data System |
| FM stereo how FM stereo work |
| FM stereo FM modulation used in the 87.5MHz to 108MHz band takes a signal with frequency range ~50Hz to ~15kHz and modulates a carrier in the FM band with a modulation index of ~5 |
| FM-Stereo-RDS Modulation FM theory, FM stereo multiplexing and the RDS mechanism, Frequency modulation (FM) has a long history of its application and is widely used in radio broadcast. To transmit stereo music, FM is enhanced by stereo multiplexing which carries both L and R audio channel content. With the digital age, Radio Data System (RDS) enables FM to carry text information such as traffic, weather, and radio station information which can be displayed on the end-user’s device interface, pdf file |
| FM Stereo Tuner Measurement Pilot, Stereo Subcarrier suppressed, RDS Subcarrier, pdf file |
| Heterodyne Principle generate new frequencies by mixing two or more signals in a nonlinear device such as diode mixer |
| IF transformer |
| LC AM radio construct a simple AM receiver using a "Tank" circuit and a Envelope Detector circuit |
| LC filter design learn the basics of LC filter design, pdf file |
| LM3189 FM IF System The LM3189N is a monolithic integrated circuit that provides all the functions of a comprehensive FM IF system. The block diagram of the LM3189N includes a three stage FM IF amplifier/limiter configuration with level detectors for each stage, a doubly balanced quadrature FM detector and an audio amplifier that features the optional use of a muting (squelch) circuit, pdf file |
| Mathematical analysis of frequency mixing Mathematical analysis of frequency mixing, describing the mixing of two frequencies in a non-linear circuit |
| Mixer design describing the mixing of two frequencies in a non-linear circuit, Mixer spectral output, pdf file |
| Mixers |
| Mixers: a introduction a mixer converts RF power at one frequency into power at another frequency to make signal processing easier and also inexpensive |
| Mixers and frequency conversion mixers and frequency conversion |
| Mixers, diode the use of mixers and heterodyne receivers to detect and process RF signals |
| Mixers in communications the linear diode detector for AM demodulation, product detector for SSB, DSB, and CW demodulation, quadrature demodulator, BPSK signal, QPSK signal, filter method of SSB generation, phasing method of SSB generation |
| Mixing and modulation techniques animated; |
| Negative resistance oscillators Gunn oscillators, Negative Resistance, Gunn effect, Negative resistance oscillator |
| Oscillator design pdf file |
| Oscillator design pdf file |
| Phase-Locked Loop |
| Preemphasis and deemphasis in an FM system the higher frequencies contribute more to the noise than the lower frequencies. Because of this all FM systems adopt a system of preemphasis where the higher frequencies are increased in amplitude before being used to modulate the carrier |
| Quad detector a quadrature detector is used to demodulate frequency shift keying (FSK) and other types of FM signals |
| Quadrature FM detectors FM stands for Frequency Modulation. It means that the RF-frequency will change acording to the input audio signal |
| Ratio detector The RF input V0 is applied to the coil L0. The capacitor C0 is not very essential for understanding the principle of the ratio detector. Its value is selected so that L0-C0 tank circuit resonates at the center frequency of FM modulation of the RF input, in order to cancel the inductance of the detector seen from the RF signal source |
| Ratio detector |
| Ratio detector |
| Receivers Detection of AM, FM, and SSB, AM Detector, AGC, ppt file |
| Receptiion of Amplittude Modulated Siignals AM Demodulation The purpose of this experiment is to show how the amplitude-modulated signals are demodulated to obtain the original signal, pdf file |
| Regenerative receivers the use of feedback in the reflex receiver allowed a single transistor to be used simultaneously as an amplifier for both RF and AF signals |
| Superheterodyne Radio Receivers Superheterodyne Radio Receivers, Superheterodyne AM Receivers, The Simplest Superheterodyne AM Receiver |
| Superheterodyne Receivers pdf file |
| Superheterodyne receivers Spurious responses of mixers, pdf file |
| Superheterodyne receiver |
| Superheterodyne receiver Superheterodyne receiver |
| Synthesiser design a synthesiser is a device which takes an input, or source, frequency and from it produces an output frequency which is either directly or indirectly related to it, pdf file |
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TDA1597 IF amplifier/demodulator The TDA1597 provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and car FM radio receivers and is suitable for mono and stereo reception. It may also be applied to common front-ends, stereo decoders and AM receivers circuits
Varactor tuner
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- Wide band RF transformers wideband RF transformers are simply transfomers designed to provide an impedance transformation over a broad frequency range. In amateur radio applications we wind these transformers on ferrite toroids. A common impedance transformation is 200 ohms to 50 ohms using a bi-filar winding, pdf file
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Обновлено 07.10.2010 16:43 |
Схемотехника. РЧ блоки
