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 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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| Sudoku
December 28
December 21
December 14
December 7
November 30
November 23
November 16
November 9
November 2
October 26
October 19
October 12
October 5
September 28
September 21
September 14
September 7
August 31
August 24
August 17
August 10
August 3
July 27
July 20
July 13
July 6
June 29
June 22
June 15
June 8
June 1
May 25
May 18
May 11
May 4
April 27
April 20
April 13
April 6
March 30
March 23
March 16
March 9
March 2
February 23
February 16
February 9
February 2
January 26
January 19
January 12
January 5
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
1. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
3.
Emits a radio wave
10. Chemical symbol for erbium
11. Ticker symbol for Analog Devices
13. Its chemical
symbol is Fe
14. Abbreviation for peak voltage
15. 4 GHz to 8 GHz
19. Field Programmable Gate Array (abbr.)
23. Encased in a protective covering
25. An electrical specification for a motor when it is first started (2
wds.)
28. ___-back transformer
29. Plain Old Telephone System
30. System On Chip
32. Switch position
33. A common RS-232 serial bus command (abbr.)
34. Powerful mathematics software used by engineers
40. Automatic
network analyzer (abbr.)
41. Electronics manufacturer with "meatball" logo
42. Unix, Linux or Windows (abbr.)
43. Isaac Newton's mathematical contribution
45. 1/6 inch printer's measure
46. 2 x SSB
48. Short for
synchronous
49. European equivalent to the U.L.
50. Min-to-max voltage of a waveform (abbr.)
51. Chemical
symbol for calcium
52. Chemical symbol for scandium
54. Chemical symbol for gold
55. 30 MHz to 300 MHz
57. Army-Navy specification prefix
58. Area outside the passband (pl.)
60. Galilean moon
62. Ham's code
for "Station is leaving the net."
63. Chemical symbol for tantalum
64. Unit of time (abbr.)
65. Chemical
symbol for chlorine
66. Chemical symbol for radon
67. Chemical symbol for polonium
68. Institute of Electrical
and Electronics Engineers
70. Miniature RF connector
72. Sound frequency in the human hearing range (abbr.)
73. Flame resistant material
77. Centimeter (abbr.)
79. Type of logic gate
80. Charged particle
82.
Constellation : The bull
83. Semiconductor On Insulator (abbr.)
84. Chemical symbol for dysprosium
85.
The design component of total product cost (abbr.)
86. Vertical Metal Oxide Semiconductor
87. Voltage-current
phase mnemonic
89. Calculus operations
96. The amount of matter that a body contains
98. Type of high
frequency circuit substrate (abbr.)
99. Moon of Saturn discovered in 1789
100. Chemical symbol for neon
102. Time Division Multiple Access
104. Mr. de Forest's first name
105. Chemical symbol for cobalt
106.
U.S. dollar bill sent along with a QSL card, slang
107. Last statement in a BASIC routine |
1. One divided by a number
2. Chemical symbol for francium
4. Ratio of circumference
to diameter
5. Flash caused by an electric current ionizing a gas or vapor
6. International phonetic alphabet
letter "G"
7. Semiconductor company based in Norwood, MA (2 wds.)
8. 1.602E-19 Joules
9. Separated by
specific distances
11. Type of data conversion device (abbr.)
12. Discipline for aircraft navigation in
low visibility environments (abbr.)
15. Computer monitor (abbr., pl.)
16. Data transmission pathway
17.
Chemical symbol for arsenic
18. Unit of inductance (abbr.)
20. Chemical symbol for praseodymium
21. Electronics
manufacturer with "meatball" logo
22. Most protruding part of planetary rings as seen from distance
24.
Force required to impart an acceleration of one centimeter per second per second to a mass of one gram (pl.)
26. Logical negation (pl.)
27. An array of 12 or 16 numbered keys that generate the standard telephone dual
tone multifrequency (DTMF) dialing signals (2 wds., pl.)
31. College grounds
34. ELI the ICE ___
35.
Circuit for maintaining constant voltage (abbr.)
36. Coefficient of temperature (abbr.)
37. Chemical symbol
for lutetium
38. Chemical symbol for aluminum
39. Voltage regulator type
43. Super glue
44. Chemical
symbol for selenium
47. Filter type (abbr.)
48. Move in a raster pattern
52. Engineering university located
in Palo Alto, CA
53. Chemical symbol for cobalt
56. Majority carrier in p-type material
58. Alter the
relations between the parts of a structure or shape by applying an external force
59. Greek letter used for
frequency
61. The "C" in FCC
62. Unit of liquid measure (abbr., pl.)
67. Last stage in a transmitter
(abbr.)
68. International Telecommunications Union
69. Electrical overstress (abbr.)
71. Short for modulator/demodulator
74. Stock symbol for Boeing
75. Chemical symbol for europium
76. Chemical symbol for strontium
77. Cause
the temperature to drop
78. Recording onto magnetic media
81. Apollo 11 astronaut ____ Armstrong
83.
Miniature threaded RF connector (pl.)
86. Circuit element connecting PCB layers
88. Integrated Services
Digital Network (abbr.)
90. Unit of length (abbr.)
91. A BPF specification (abbr.)
92. High-speed logic
family
93. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
94. Chemical
symbol for nickel
95. Chemical symbol for thulium
97. "Texting" (abbr.)
101. Chemical symbol for erbium
103. PC follower
105. Chemical symbol for chromium |
See solution below
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