What is one way a single-sideband phone signal can be generated? What is one of the potential hazards of operating in the amateur radio microwave bands? What is the maximum power permitted on the 2200 meter band? Why is RF attenuation used when direction-finding? Which type of core material decreases inductance when inserted into a coil? What type of packet frame is used to transmit APRS beacon data? What is the approximate physical length of an air-insulated, parallel conductor transmission line that is electrically 1/2 wavelength long at 14.10 MHz? Which of the following materials is likely to provide the highest frequency of operation when used in MMICs? 1 Extra Class Question Pool Questions and correct answers only July 1, 2020 – June 30, 2024 By K8TB Last edited 4-23-2020 SUBELEMENT E1 - COMMISSION’S RULES [6 Exam Questions - 6 Groups] E1A Operating Standards: frequency privileges; emission standards; automatic message forwarding; frequency What is indicated by a rising A or K index? What could cause local AM broadcast band signals to combine to generate spurious signals in the MF or HF bands? Like the Technician and General class exams, you must achieve a score of 74 percent or greater to pass the test. Valid from July 1, 2018 to June 30, 2022 This document is available for any non-profit and non-commercial use. What is the effective radiated power relative to a dipole of a repeater station with 200 watts transmitter power output, 4 dB feed line loss, 3.2 dB duplexer loss, 0.8 dB circulator loss, and 10 dBd antenna gain? What is the triangulation method of direction finding? How can an RF power amplifier be neutralized? How can linearly polarized Yagi antennas be used to produce circular polarization? What logical operation does a NAND gate perform? What problem can occur when using an automatic notch filter (ANF) to remove interfering carriers while receiving CW signals? What is the radiation pattern of two 1/4-wavelength vertical antennas spaced 1/2-wavelength apart and fed 180 degrees out of phase? Ham Radio Exam Questions & Answers category is a curation of 8 web resources on , Hamboozler, Technician Class Exam Question Pool - 2010 2014, Questions for Radio Amateurs by G3KZB. How many watts are consumed in a circuit having a power factor of 0.2 if the input is 100 VAC at 4 amperes? Which of the following best describes the Volunteer Examiner accreditation process? Which of these materials is most commonly used to create photoconductive devices? Which of the following is a type of analog-to-digital conversion? Which amateur stations are eligible to operate as Earth stations? What function is performed by a Fast Fourier Transform? By how much does the VHF/UHF radio horizon distance exceed the geometric horizon? What must the VE team do with the application form if the examinee does not pass the exam? What is the most common data rate used for HF packet? Which of the following is a measure of the quality of an analog-to-digital converter? What is the purpose of connecting equal-value resistors across power supply filter capacitors connected in series? What is the approximate open-circuit voltage produced by a fully illuminated silicon photovoltaic cell? What is one advantage of a Pi-matching network over an L-matching network consisting of a single inductor and a single capacitor? Why might a DX station state that they are listening on another frequency? Which amateur stations may be operated under RACES rules? What is an advantage of using top loading in a shortened HF vertical antenna? What is the name of an antenna matching system that matches an unbalanced feed line to an antenna by feeding the driven element both at the center of the element and at a fraction of a wavelength to one side of center? Which of the following types of noise can often be reduced with a digital signal processing noise filter? What is the principle of a Method of Moments analysis? What does a third-order intercept level of 40 dBm mean with respect to receiver performance? What happens as the Q of an antenna increases? What is the relationship between symbol rate and baud? Which of the following descriptors indicates the greatest solar flare intensity? What privileges are authorized in the U.S. to persons holding an amateur service license granted by the government of Canada? Download the entire question pool for your exam from the NCVEC Web Site. What is included in the total resistance of an antenna system? Why do many MOSFET devices have internally connected Zener diodes on the gates? Formatted for use with: ARRL Ham Radio License Manual 3rd Edition. Which of the following is good practice when using an oscilloscope probe? What do the letters FEC mean as they relate to digital operation? How many horizontal lines make up a fast-scan (NTSC) television frame? How is power supplied to the most common type of MMIC? This is three weeks later than the release date of the 2016 Extra Class question pool. How does DC input impedance at the gate of a field-effect transistor compare with the DC input impedance of a bipolar transistor? Which of the following operating arrangements allows an FCC-licensed U.S. citizen to operate in many European countries, and alien amateurs from many European countries to operate in the U.S.? Which of the following describes how the loading and tuning capacitors are to be adjusted when tuning a vacuum tube RF power amplifier that employs a Pi-network output circuit? What is the purpose of a low-pass filter used in conjunction with a digital-to-analog converter? Extra class (Element 4) Question Pool is effective July 1, 2020 and is valid until June 30, 2024. To what type of regulations does PRB-1 apply? What is the magnitude of the current at the input of a parallel RLC circuit at resonance? How does ladder line compare to small-diameter coaxial cable such as RG-58 at 50 MHz? Which of the following is required in order to operate in accordance with CEPT rules in foreign countries where permitted? What toxic material may be present in some electronic components such as high voltage capacitors and transformers? What causes intermodulation in an electronic circuit? Why are there separate electric (E) and magnetic (H) field MPE limits? How should an antenna analyzer be connected when measuring antenna resonance and feed point impedance? Make sure to get it as a Microsoft Word Document, or plain text (NOT a pdf). Which of the following describes problems caused by poor dynamic range in a receiver? What happens when the level of a comparator's input signal crosses the threshold? Why are optoisolators often used in conjunction with solid-state circuits when switching 120 VAC? What might be the cause of a loud roaring or buzzing AC line interference that comes and goes at intervals? What core material property determines the inductance of an inductor? What coordinate system is often used to display the resistive, inductive, and/or capacitive reactance components of impedance? How is the compensation of an oscilloscope probe typically adjusted? How does the performance of a horizontally polarized antenna mounted on the side of a hill compare with the same antenna mounted on flat ground? What is the typical output impedance of an op-amp? Which of the following can cause shielded cables to radiate or receive interference? What is the primary reason that a high-frequency switching type high-voltage power supply can be both less expensive and lighter in weight than a conventional power supply? How does the gain of an ideal operational amplifier vary with frequency? What is the modulation index of an FM-phone signal having a maximum frequency deviation of 3000 Hz either side of the carrier frequency when the modulating frequency is 1000 Hz?