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Take a break and work this week's
RF Engineering-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. Clues for
words having to do with types of engineers are marked with an asterisk (*). If you want a crossword
with names of movie stars and obscure countries, try the local newspaper.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym,
abbr. = abbreviation, pl. = plural, wds. = words
ACROSS
2. The "B" in BJT
6. Turn source into an executable file
11. Silicon
transistor type (abbr.)
13. Semiconductor On Insulator (abbr.)
14. Decimeter (abbr.)
15. Type
of engineer that deals with reliability and life cycle issues*
19. Home state of Los Alamos lab (abbr.)
20. Stock symbol for Hewlett Packard
23. Total radiated power (abbr.)
24. BlackBerry or Palm for
example (abbr.)
26. Type of data conversion device (abb.)
28. Signals in the sky
30. FCC's
Universal Licensing System (abbr.)
33. Reduce
35. Nordic Mobile Telephone
36. Adheres
38.
Airport Surveillance Radar (abbr.)
40. Encased in a protective covering
41. Electron beam particle
43. Conductor size unit (abbr.)
45. Type of logic gate (pl.)
47. Singulated piece of IC wafer
48. Logical negation operator
49. High power density battery chemistry (abbr.)
51. Unit of length
(abbr.)
53. Semiconductor and calculator company (abbr.)
54. Move like a wheel along a surface
56. 30 GHz to 300 GHz
57. Transmit Incremental Tuning (abbr.)
58. The "T" in ATE
59. Write-Once
(abbr.)
61. Chemical symbol for praseodymium
62. Type of antenna with an element made of a single,
flexible rod or tube
64. Automatic Calibration System (abbr.)
65. Radio Amateurs of Canada (abbr.)
67. Exponent that returns the original number
68. Frequency Division Duplex
69. The "D" in RFID
(pl.)
71. Threaded tuning rod in a coil
72. Type of logic gate
75. Type of reconfigurable memory
(abbr.)
78. Greek letter
80. Short for "intermodulation"
84. File name extension for an ASCII
file
85. What relationship does one wave motion have to another if its frequency is a multiple of
the other
88. World's largest yearly convention of gadget and device manufacturers (abbr.)
89.
Logarithmic unit of ratio (abbr., pl.)
91. Yttrium Aluminum Garnet
92. Type of computer display
(abbr.)
93. Unit of apparent power (abbr.)
95. Mr. Röntgen's first name
97. Chemical symbol
for thallium
98. 30 Hz to 300 Hz
100. Having power applied (slang)
101. Contact used on motors
to conduct current through a rotating interface (pl.)
102. Type of engineering that involves determining
how a product was made by somebody else* |
DOWN
1. Type of engineer that designs machines, enclosures, brackets, supports,
etc.*
3. International phonetic alphabet letter "I"
4. Parts per million (abbr.)
5. Switch
position
7. Unit of time (abbr.)
8. Charged particle
9. Restrain voltage input
10. Type
of engineer that deals with circuits*
12. Chemical symbol for chlorine
15. Ham's code for "Shall
I send more slowly?"
16. One type of electron spin
17. Test point (abbr.)
18. 36 in. (abbr.,
pl.)
21. Spurious RF products created by metal joints (abbr.)
22. Ham's code for "Shall I stop
sending?"
23. Test equipment (abbr.)
25. Chemical symbol for gold
26. A common battery cell
size
27. Cellphone band below PCS
29. Arrangement of vectors showing phase relationships between
two or more AC quantities of the same frequency (2 wds.)
30. Electrical safety organization (abbr.)
31. Mr. Boltzmann's first name
32. Chemical symbol for selenium
34. RF Cafe webmaster's last name
36. Chemical symbol for gadolinium
37. Chemical symbol for antimony
39. Variable resistor (pl.)
42. Type of engineer that deals in the region of the radio spectrum above 1 GHz*
43. Analog-to-Digital
(abbr.)
44. Electronics manufacturer with "meatball" logo
46. Term for asymmetry of a statistical
distribution (pl.)
48. Fuel additive
50. Current-voltage phase mnemonic
52. Unit of admittance
53. End of soldering iron
55. Family of ICs with a certain component density level (abbr.)
58.
Circuit or mechanical professional usually with an Associate's or higher degree and/or military experience*
60. Type of engineer that deals with aircraft tracking systems (pl.)*
63. Type of engineer that deals
with product creation in the factory*
65. Type of engineer that deals with communications across
the electromagnetic spectrum*
66. Chemical symbol for cadmium
70. Morse Code for "from"
71.
Type of component package (abbr.)
73. Exponent that returns the original number
74. A common RS-232
serial bus command (abbr.)
76. Last stage in a transmitter (abbr.)
77. Amateur radio abbreviation
for the Oceania region (abbr.)
78. RF connector type
79. Powers pneumatic devices
81. A Ham
station that operates from several grid squares or counties during a contest
82. Opposite of I.D.
83. Logarithmic unit of power (abbr.)
85. Amateur radio enthusiast
86. Chemical symbol for silver
87. Transitions from solid to liquid phase
90. Chemical symbol for silicon
91. Ham-ese for Young
Lady
94. Arithmetic Logic Unit (abbr.)
96. Filter type that blocks lower frequencies (abbr.)
97. Telex-Over-Radio (abbr.)
99. Start frequency (abbr.)
100. Chemical symbol for helium |
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
 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
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December 4
November 27
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November 13
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October 2
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