General: Station Log Information
What information is traditionally contained in a station log? [G2D09] A. Date and time of contact B. Band and/or frequency of the contact C. Call sign of station contacted and the signal report given D. All of these choices are correct When keeping logs for your station, you need certain...
Technician: Amplifier Components
Which of the following electronic components can amplify signals? [T6B05] A. Transistor B. Variable resistor C. Electrolytic capacitor D. Multi-cell battery The answer is, as luck would have it, A. Transistor. The transistor is probably the miracle of 20th century technology. It's an amplifier, a switch, and so much more....
General: Schottky Diodes
Which of the following is an advantage of using a Schottky diode in an RF switching circuit rather than a standard silicon diode? [G6A06] A. Lower capacitance B. Lower inductance C. Longer switching times D. Higher breakdown voltage I know what you're thinking. Where did this bit of word soup...
Technician: Electric Field
What is the ability to store energy in an electric field called? [T5C01] A. Inductance B. Resistance C. Tolerance D. Capacitance Hate to say it, but this is basically a definition question. The answer is D. Capacitance. The easy way to remember this is just think about capacitors, the devices...
Amateur Extra: Distance From Monitoring Facilities
Within what distance must an amateur station protect an FCC monitoring facility from harmful interference? [E1B03, 97.13] A. 1 mile B. 3 miles C. 10 miles D. 30 miles The answer is: A. 1 mile. Why? Because the FCC has said so, basically. In section 13 of Part 97. (b)...
General: Serial Port Connector
Which of the following connectors would be a good choice for a serial data port? [G6B12] A. PL-259 B. Type N C. Type SMA D. DE-9 The answer is D. DE-9. Now, wait a minute! I thought those were DB-9 connectors! Well, technically no. The "B" refers to the size...
Technician: Ammeter Current Display
If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show? [T5B06] A. 0.003 amperes B. 0.3 amperes C. 3 amperes D. 3,000,000 amperes Don't panic! This is a simple question about unit conversions, nothing more. Remember your definitions of metric prefixes. Milli...
Amateur Extra: Toxic Materials
Which insulating material commonly used as a thermal conductor for some types of electronic devices is extremely toxic if broken or crushed and the particles are accidentally inhaled? [E0A09] A. Mica B. Zinc oxide C. Beryllium Oxide D. Uranium Hexaflouride The answer is C. Beryllium Oxide. One of the hazards...
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