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课程名称：业余无线电技术员班（Ham Radio Technician Class） 课程概述： 本课程旨在为准备参加业余无线电技术员执照考试的学员提供全面的培训。课程内容涵盖了2022-2026年FCC技术员考试的所有可能题目，并包括最新发布的题库信息。课程分为多个子部分，详细介绍了业余无线电服务的规则、操作程序、电波传播、无线电实践、电气原理及电子组件等多个主题。 主要内容包括： 1. **委员会的规则（SUBELEMENT T1）**：涵盖业余无线电服务的目的、许可类型、干扰管理、国际通信等。 2. **操作程序（SUBELEMENT T2）**：包括站点操作、频率选择、公共服务、紧急操作等。 3. **电波传播（SUBELEMENT T3）**：介绍电波的特性及传播模式，包括散射和天际线传播。 4. **业余无线电实践（SUBELEMENT T4）**：包括设备设置及操作控制的使用。 5. **电气原理（SUBELEMENT T5）**：解释电流、电压和基本电气法则等。 6. **电子和电气组件（SUBELEMENT T6）**：介绍基本元件及其功能，以及线路图的应用。 7. **实用电路（SUBELEMENT T7）**：讲解设备故障诊断与测试方法。 8. **信号和发射（SUBELEMENT T8）**：包括调制类型、卫星操作和数字通信。 9. **天线和馈线（SUBELEMENT T9）**：天线特性、馈线选择及其影响。 10. **安全（SUBELEMENT T0）**：涉及电气安全、天线安全和RF辐射危害等内容。 通过该课程，学员将掌握业余无线电的基本知识和操作技能，为获取技术员执照做好充分准备。
The following changes have been made to the posted2022-2026 Technician Class FCC Element 2 Question PoolReleased on January 3, 2022The Technician class question pool contains three (3) schematic diagrams that aren't pictured in this question bank.This course covers all of the questions that you could possibly see on the Technician Licensing exam. SUBELEMENT T1 - COMMISSION'S RULES - [6 Exam Questions - 6 Groups] 67 QuestionsT1A - Purpose and permissible use of the Amateur Radio Service; Operator/primary station license grant; Meanings of basic terms used in FCC rules; Interference; RACES rules; Phonetics; Frequency CoordinatorT1B - Frequency allocations; Emission modes; Spectrum sharing; Transmissions near band edges; Contacting the International Space Station; Power outputT1C - Licensing: classes, sequential and vanity call sign systems, places where the Amateur Radio Service is regulated by the FCC, name and address on FCC license database, term, renewal, grace period, maintaining mailing address; International communicationsT1D - Authorized and prohibited transmissions: communications with other countries, music, exchange of information with other services, indecent language, compensation for operating, retransmission of other amateur signals, encryption, sale of equipment, unidentified transmissions, one-way transmissionT1E - Control operator: eligibility, designating, privileges, duties, location, required; Control point; Control types: automatic, remoteT1F - Station identification; Repeaters; Third party communications; Club stations; FCC inspectionSUBELEMENT T2 - OPERATING PROCEDURES - [3 Exam Questions - 3 Groups] 36 QuestionsT2A - Station operation: choosing an operating frequency, calling another station, test transmissions; Band plans: calling frequencies, repeater offsetsT2B - VHF/UHF operating practices: FM repeater, simplex, reverse splits; Access tones: CTCSS, DTMF; DMR operation; Resolving operational problems; Q signalsT2C - Public service: emergency operations, applicability of FCC rules, RACES and ARES, net and traffic procedures, operating restrictions during emergencies, use of phonetics in message handlingSUBELEMENT T3 - RADIO WAVE PROPAGATION - [3 Exam Questions - 3 Groups] 34 QuestionsT3A - Radio wave characteristics: how a radio signal travels, fading, multipath, polarization, wavelength vs absorption; Antenna orientationT3B - Electromagnetic wave properties: wavelength vs frequency, nature and velocity of electromagnetic waves, relationship of wavelength and frequency; Electromagnetic spectrum definitions: UHF, VHF, HFT3C - Propagation modes: sporadic E, meteor scatter, auroral propagation, tropospheric ducting; F region skip; Line of sight and radio horizonSUBELEMENT T4 - AMATEUR RADIO PRACTICES - [2 Exam Questions - 2 Groups] 24 QuestionsT4A - Station setup: connecting a microphone, a power source, a computer, digital equipment, an SWR meter; bonding; Mobile radio installationT4B - Operating controls: frequency tuning, use of filters, squelch function, AGC, memory channels, noise blanker, microphone gain, receiver incremental tuning (RIT), bandwidth selection, digital transceiver configurationSUBELEMENT T5 - ELECTRICAL PRINCIPLES - [4 Exam Questions - 4 Groups] 52 QuestionsT5A - Current and voltage: terminology and units, conductors and insulators, alternating and direct currentT5B - Math for electronics: conversion of electrical units, decibelsT5C - Capacitance and inductance terminology and units; Radio frequency definition and units; Impedance definition and units; Calculating powerT5D - Ohm's Law; Series and parallel circuitsSUBELEMENT T6 - ELECTRONIC AND ELECTRICAL COMPONENTS - [4 Exam Questions - 4 Groups] 47 QuestionsT6A - Fixed and variable resistors; Capacitors; Inductors; Fuses; Switches; BatteriesT6B - Semiconductors: basic principles and applications of solid state devices, diodes and transistorsT6C - Circuit diagrams: use of schematics, basic structure; Schematic symbols of basic componentsT6D - Component functions: rectifiers, relays, voltage regulators, meters, indicators, integrated circuits, transformers; Resonant circuit; ShieldingSUBELEMENT T7 - PRACTICAL CIRCUITS - [4 Exam Questions - 4 Groups] 44 QuestionsT7A - Station equipment: receivers, transceivers, transmitter amplifiers, receive amplifiers, transverters; Basic radio circuit concepts and terminology: sensitivity, selectivity, mixers, oscillators, PTT, modulationT7B - Symptoms, causes, and cures of common transmitter and receiver problems: overload and overdrive, distortion, interference and consumer electronics, RF feedbackT7C - Antenna and transmission line measurements and troubleshooting: measuring SWR, effects of high SWR, causes of feed line failures; Basic coaxial cable characteristics; Use of dummy loads when testingT7D - Using basic test instruments: voltmeter, ammeter, and ohmmeter; SolderingSUBELEMENT T8 - SIGNALS AND EMISSIONS - [4 Exam Questions - 4 Groups] 48 QuestionsT8A - Basic characteristics of FM and SSB; Bandwidth of various modulation modes: CW, SSB, FM, fast-scan TV; Choice of emission type: selection of USB vs LSB, use of SSB for weak signal work, use of FM for VHF packet and repeatersT8B - Amateur satellite operation: Doppler shift, basic orbits, operating protocols, modulation mode selection, transmitter power considerations, telemetry and telecommand, satellite tracking programs, beacons, uplink and downlink mode definitions, spin fading, definition of "LEO", setting uplink powerT8C - Operating activities: radio direction finding, contests, linking over the internet, exchanging grid locatorsT8D - Non-voice and digital communications: image signals and definition of NTSC, CW, packet radio, PSK, APRS, error detection and correction, amateur radio networking, Digital Mobile Radio, WSJT modes, Broadband-HamnetSUBELEMENT T9 - ANTENNAS AND FEED LINES - [2 Exam Questions - 2 Groups] 24 QuestionsT9A - Antennas: vertical and horizontal polarization, concept of antenna gain, definition and types of beam antennas, antenna loading, common portable and mobile antennas, relationships between resonant length and frequency, dipole patternT9B - Feed lines: types, attenuation vs frequency, selecting; SWR concepts; Antenna tuners (couplers); RF Connectors: selecting, weather protectionSUBELEMENT T0 - SAFETY - [3 Exam Questions - 3 Groups] 36 QuestionsT0A - Power circuits and hazards: hazardous voltages, fuses and circuit breakers, grounding, electrical code compliance; Lightning protection; Battery safetyT0B - Antenna safety: tower safety and grounding, installing antennas, antenna supportsT0C - RF hazards: radiation exposure, proximity to antennas, recognized safe power levels, radiation types, duty cycle
