Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Exam-prep Jepperdee: 2014 Tech Edition …a game to help prepare contestants and audience for the entry-level ham exam produced by Bob Raffaele, W2XM This game is to be played in the PowerPoint “slide show” mode. Operation of the game is almost intuitive, and you can make up your own rules. Each numeric point value on either game board is a hyperlink which reveals a question. Advancing the game one slide past the question (by clicking the screen) displays the answer. “Done” on the answer slide returns you to the game board. “SFJ” (clickable) stands for “semi-final jepperdee” and “FJ” (also clickable) means “final jepperdee;” clicking anywhere on the screen reveals the final- or semi-final-jepperdee question. There is one daily double on each board; click on either “daily or “double.” For most fun, appropriate hardware (lights, pushbuttons, sounder, lockout circuitry) should be used. A diagram is available from the author. Chapter 2 Chapter 3 Chapter 4 Chapter 5 Radio Signals Electrical Basics 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 Propagation Ham & Antennas Equipment . SFJ Chapter 6 Chapter 7 Chapter 8 QSOing Licensing Operating Other Hams Regulations Regulations Chapter 0 Safety 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500 FJ How does the wavelength of a radio wave relate to its frequency? T3B05 . The wavelength gets shorter as the frequency increases. done T5B05 What number of watts equals 500 mW? . 0.5 watts done T5C06 What does the abbreviation “RF” refer to? . Radio frequency signals of all types done Which type of voice mode is most often used for long-distance (weak signal) contacts on the VHF and UHF bands? T8A03 . SSB done What determines the amount of deviation of an FM (as opposed to PM) signal? T2B05 . The amplitude of the modulating signal done What is the purpose of a fuse in an electrical circuit? T0A04 . To interrupt power in case of overload done T6B10 What are the three electrodes of a PNP or NPN transistor? . Emitter, base, and collector done What is the electrical term for the electromotive force (EMF) that causes electron flow? T5A05 . Voltage done What is the formula used to calculate electrical power in a DC circuit? T5C08 . Power (P) equals voltage (E) multiplied by current (I) or P=EI done What is the current flowing through a 100-ohm resistor connected across 200 volts? T5D08 . 2 amperes done What term describes the fluttering sound from mobile stations that are moving while transmitting? T3A06 . Picket fencing done What generally happens as the frequency of a signal going through coaxial cable is increased? T9B05 . The loss increases. done Where should an in-line SWR meter be connected to monitor the SWR of the antenna system? T4A05 . In series with the feed line, between the transmitter and antenna done What instrument other than an SWR meter could you use to determine if a feed line and antenna are properly matched? T7C08 . Directional wattmeter done What is the approx. amount of change (in dB) of a power decrease from 12 watts to 3 watts? T5B10 . -6 dB done T5A06 How much voltage does a mobile transceiver usually require? . About 12 volts done What type of receiver audio muting is controlled by the absence of an RF signal? T2B03 . Carrier squelch done Where must a filter be installed to reduce harmonic emissions from your station? T4A04 . Between the transmitter and the antenna done What device increases the lowpower output from a handheld transceiver? T7A10 . An RF power amplifier done T8D07 What is PSK31? . A low-rate data transmission mode done What is the FCC Part 97 definition of telemetry? T1A07 . A 1-way xmission of measurements to somewhere remote from the measuring instrument done What Q signal indicates that you are receiving interference from other stations? T2B10 . QRM done What is the Amateur Radio Emergency Service (ARES)? T2C12 . Hams who’ve voluntarily registered their qual. and equip. for communications duty in the public svc. done What causes spin fading when referring to satellite signals? T8B09 . Rotation of the satellite and its antennas done What type of transmission is indicated by the term NTSC? T8D04 . An analog fast scan color TV signal done T1A09 [97.3(a)(22)] Who selects a Frequency Coordinator? . Amateur operators in a local or regional area whose stations could be auxiliary or repeater stationsdone If your license has expired and is still within the allowable grace period, may you operate a transmitter on the ham bands? T1C11 [97.21(b)] . No, transmitting isn’t allowed until the FCC database shows that the license has been renewed done What is a band plan, beyond the privileges established by FCC? T2A10 A voluntary guideline for using different modes or activities within an amateur band done Which 23-cm frequency is authorized to Tech licensees? T1B06 [97.301(a)] 146.52, 2315, 1296, or 3390 MHz? . 1296 MHz done Which Tech bands above 30 MHz have mode-restricted sub-bands? T1B10 [97.301(e), 97.305(c)] . The 6 meter, 2 meter, and 1.25 meter bands done T1D04 [97.113(a)(4), 97.113(c)] What is the only time that an amateur station is authorized to transmit music? . When incidental to an authorized retransmission of manned spacecraft communications done When using a tactical identifier such as “Race HQ,” how often must you transmit the station’s FCC-assigned call sign? T1F02 [97.119 (a)] . At the end of each communication and every ten minutes during a communication done What must an operator do when making on-air xmsns to test equipment or antennas? T2A06 . Properly identify the transmitting station done When the control op is not the station licensee, who is responsible for the proper operation of the station? T1E07 [97.103(a)] . The control operator and the station licensee are equally responsible done When is an amateur station required to transmit its assigned call sign? T1F03 [97.119(a)] . At least every 10 minutes during a communication and at the end of a communication done T0A09 What kind of hazard is presented by a conventional 12-volt storage battery? . Explosive gas can collect if not properly vented done T0B08 What is considered to be a proper grounding method for a tower? . Separate eight-foot long ground rods for each tower leg, bonded to the tower and each other done Under what circumstances is it safe to climb a tower without a helper or observer? T0B03 . Never done T0C05 Why do exposure limits vary with frequency? . The human body absorbs more RF energy at some frequencies than at others done Why is duty cycle one of the factors used to determine safe RF radiation exposure levels? T0C10 . It affects the average exposure of people to radiation done Semi-final Jepperdee Topic: propagation Write your secret wager. . What mode allows over-the-horizon V/UHF communications to ranges of approximately 300 miles? T3C06 . Tropospheric scatter to game 2 board Final Jepperdee Topic: Licensing regulations Write your secret wager. . How many persons must be members of a club for the FCC to issue a club station license? T1F12 [97.5(b)(2)] . At least 4 . Pardon us while we compute scores. . Thanks for playing Exam-prep Jepperdee: Technician Edition! Make suggestions to [email protected] .