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Take a break and work this week's electronics
technology themed crossword puzzle. All the words are pulled from a hand-built list of terms, names,
and abbreviations that have only to do with science, mathematics, and engineering. If you want a crossword
with names of movie stars and obscure countries, try the local newspaper. If you want to exercise your
nerd knowledge, this is the one for you.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words
1. Airport Surveillance Radar (abbr.)
4. British aircraft designer of the WWI Camel and Pup (2 wds.)
14. 3 Down + ____ is this website's title
16. General Mobile Radio Service (abbr.)
19. Describes
when a synchronous motor loses phase lock (pl.)
20. Type of digital filter (abbr.)
21. Pure carrier
(abbr.)
22. American space agency (abbr.)
24. Start frequency (abbr.)
25. Satellite of Jupiter
discovered by Galileo
27. Unix, Linux or Windows (abbr.)
28. Rate of a radar transmitter's output
waveform (abbr.)
29. 30 kHz to 300 kHz
31. Chemical symbol for nickel
33. Alternative name
for a pi meson
36. Trim a piece of Kapton tape to length
38. Helium, iron, silicon, or uranium,
for example
39. ________ angle, the point at which light can pass through a dielectric interface
41. Read-only (abbr.)
43. Type of component package (abbr.)
44. European equivalent to the U.L.
45. The "O" in answer to 39 Across
47. Control language used by Hewlett Packard printers (abbr.)
49. Chemical symbol for lanthanum
50. 1E6 nanoseconds
51. Volts divided by resistance
54. Network
department (abbr.)
55. Graph
58. Used to remove oxidation during soldering
60. Nearest and
furthest points to the center of gravitational attraction for a body in orbit
62. Vacuum tube element
63. Test equipment (abbr.)
64. 30 Hz to 300 Hz
65. Things in a bill of material
66. The "B"
in BER
67. Chemical symbol for calcium
68. Thread cutting tools
70. Moon of Saturn discovered
in 1672
71. Unit of energy (pl.)
72. Automaton
74. Chemical symbol for molybdenum
75. Connector
type
77. Chemical symbol for einsteinium
78. Abbreviation for minimum voltage
79. Software
function selection mechanism
81. Its chemical symbol is Pd
82. 1.602E-19 Joules
84. Unit of
inductance (abbr.)
86. Chemical symbol for lithium
87. Diode type whose capacitance is controlled
by a reverse bias
89. Transfers charge w/o physical contact
91. Hz
92. Junk e-mail
94. Chemical
symbol for europium
95. Type of flip-flop
96. FCC Part 15 rules apply in this band (abbr.)
97. Akin to an EE, CE, AE, etc.
98. Chemical symbol for thallium
100. Stock symbol for Boeing
101. Teflon (abbr.)
104. Chemical symbol for polonium
105. Notch type filter (abbr.)
107. Mr.
Bohr's first name
111. European Telecommunications Standards Institute (abbr.)
112. One type of
electron spin
114. Circuit designed to copy a current through one active device by controlling the
current in another active device (2 wds.)
115. Logarithmic unit of ratio (abbr., pl.) |
1. Device used to measure change in velocity
2. Crystal filter type (abbr.)
3. __ + 14 Across
is this website's title
4. Thin Shrink Small Outline Package (abbr.)
5. Switch position
6.
Chemical symbol for arsenic
7. Rotor assembly contact for the brushes in an AC motor (2 wds., pl.)
8. Chemical symbol for silicon
9. Regarding light transmission
10. Unit of time (abbr.)
11.
Band between RF and BB
12. Image file format name extension
13. Stock symbol for Harris Communications
15. Voltage-current phase mnemonic
17. Chemical symbol for manganese
18. Chemical symbol for radium
23. Application Specific Integrated Circuit (abbr.)
26. Exponent that returns the original number
28. Chemical symbol for platinum
30. A measure of microprocessor calculation speed (abbr.)
32.
Puts a new program on a computer
34. Type of logic gate (pl.)
35. Battery cell chemistry type
(abbr.)
37. Electrical safety organization (abbr.)
40. Equipment
42. Concentric cable type
44. Encased in a protective covering
46. Home state of Los Alamos lab (abbr.)
48. Chart types
52. Radio signal route
53. The scalar component of velocity
55. Computer monitor (abbr., pl.)
56. Opposite of a LO
57. The sending of radio signals (pl.)
58. 12 inches (pl.)
59. Unit of
capacitance (abbr.)
61. Miniature threaded RF connector (pl.)
62. RF connector & cable manufacturer
located in Suwon, Korea
65. Its chemical symbol is Fe
66. Filter type that blocks frequencies
in a specified band (abbr.)
68. Logarithmic unit of voltage
69. Galilean moon
71. Online auction
site
73. Radio term for indicating the end of a transmission segment
74. Standard resistor type
(2 wds.)
76. One type of electron spin
77. Swiss mathematician who extensively studied complex
numbers
80. Universal Mobile Telecommunications System
83. Name of the third series in the spectrum
of hydrogen
85. Communication between stations by reflecting the radio waves off of the ionosphere
87. Abbreviation for peak voltage
88. Increase voltage linearly
90. Device under test (abbr.)
91. Centimeter (abbr.)
93. Metric length unit
96. International Amateur Radio Union (abbr.)
99. Semiconductor lamp
100. Largest broadcaster in the UK (abbr.)
102. Unit of length (abbr.)
103. Chemical symbol for einsteinium
104. Printed Wiring Board (abbr.)
106. Chemical symbol for
francium
107. Chemical symbol for neon
108. Network department (abbr.)
109. Chemical symbol
for silicon
110. Chemical symbol for praseodymium
113. Opposite of I.D. |
See solution below
 Take a well-deserved break and try your hand at some of these goodies.
Every word in the RF Cafe crossword puzzles is specifically related to engineering,
mathematics, and science. There are no generic backfill words like many other puzzles
give you, so you'll never see a clue asking for the name of a movie star or a mountain
on the Russia-China border.
All of these crossword puzzles were created using the fabulous
Crossword Express (now called "Magnum Opus") software.
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December 18
December 11
December 4
November 27
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November 6
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October 23
October 2
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August 28
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