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Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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RF Cafe Quiz #10
A Sampling of RF & Wireless Topics
All RF Cafe Quizzes make great fodder for
employment interviews for technicians or engineers - particularly those who are
fresh out of school or are relatively new to the work world. Come to think of it,
they would make equally excellent study material for the same persons who are going
to be interviewed for a job. Bonne chance, Viel Glück, がんばろう,
buena suerte, удачи, in bocca al lupo, 행운을 빕니다,
ádh mór, בהצלחה, lykke til, 祝你好運.
Well, you know what I mean: Good luck!
Click here for the complete list of
RF Cafe Quizzes.
Note: Some material based on books have
1. What format would a
near-filed communications (13 MHz variety) antenna most likely take?
a) Inductive coil
d) Parabolic dish
2. What does SOLT stand for?
a) Short Overload Test
Simple OperationaL Test
c) Short, Open, Load, Through
d) Strategic Offensive Limitation Talks
3. Which instrument would be best to use to
locate a defective waveguide joint?
c) Spectrum Analyzer
d) Time Domain Reflectometer
4. Which entity in the U.S.
determines whether an RF energy-emitting device is allowed to be operated?
a) The Federal Communications
b) The American Radio Relay League
c) The Honor System
d) The Underwriter's Laboratory
What does 2G, 2.5G, 3G, etc., mean in reference to cellphones?
a) The average cost of service, expressed in
thousands of dollars ($ grand) per year
b) The “generation” of the technology
c) It is an arbitrary
alpha-numeric reference code
d) The frequency band of operation, in GHz
6. Where would you be
likely to find a free wireless Internet connection?
a) Hotel Lobby
c) Your backyard
All the above
7. Who hosts the MTT-S International Microwave Symposium?
a) Microwave Journal
b) Microwaves & RF Magazine
c) RF Design Magazine
d) The Institute of Electrical & Electronics
8. What is the “rule of thumb” for estimating RF signal propagation distance vs. time in free space?
millimeter per millisecond
b) 1 meter per microsecond
c) 1 foot per nanosecond
d) 1 inch per picosecond
9. What is the “rule of thumb” for estimating RF frequency vs. wavelength in free space?
a) 300 MHz = 1
b) 100 MHz = 1 meter
c) 300 MHz = 3 feet (1 yard)
d) 100 MHz = 1 foot
10. What is
the most unique feature of a Helmholtz coil?
a) The high voltage makes for cool Jacob's Ladders
Magnetic field lines are extremely uniform within the coil
c) It is self-powered
d) It uses a rare earth
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