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For the sake of avid cruciverbalists amongst us, each week I create a new crossword puzzle that has a theme related to
engineering, mathematics, chemistry, physics, and other technical words. You will never be asked the name of a movie star
unless he/she was involved in a technical endeavor (e.g., Hedy Lamarr). Enjoy!
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym,
abbr. = abbreviation, pl. = plural, wds. = words
1. One port on a FET
5. Half of a DIP
8. 1/12th of a year
12. Type of spread spectrum that does not use frequency
hopping (abbr.)
13. Request for information from a database
14. Defense Advanced Research Projects Agency
15. Decimeter
(abbr.)
17. Akin to an EE, CE, AE, etc.
19. Chemical symbol for neon
20. Last stage in a transmitter (abbr.)
22. Equalizer (abbr.)
24. Computer interconnection scheme (abbr.)
26. Type of tank circuit (abbr.)
28. Science
of assuring operation amid dense EM background noise (abbr.)
29. International QSL forwarding bureau
31. Subatomic
particle having a mass between that of an electron and a proton
32. Voice of America
33. Chemical symbol for radium
35. "Texting" (abbr.)
37. Chemical symbol for platinum
39. With 27D, this website's title
40. Chemical symbol for
arsenic
42. Network department (abbr.)
44. _____-Doppler radar
45. Translated higher frequencies to lower frequencies
47. A 3rd-order polynomial
48. Morse Code for "from"
49. Ratio of circumference to diameter
50. Chemical symbol
for argon
51. Mate to an RX
53. ___/IP scheme for networked connectivity
55. Infrared (abbr.)
57. Total radiated
power (abbr.)
58. Negatively charged ion
60. Change connector type
61. Finite Element Analysis (abbr.)
62. Unit
of apparent power (abbr.)
64. Signal-to-noise ratio (abbr.)
66. Chemical symbol for manganese
68. Chemical symbol
for silicon
69. Chemical symbol for tin
71. Band between RF and BB
73. A BPF specification (abbr.)
74. Things
in a bill of material
76. The stuff in the solder core
78. Temperature-compensated crystal oscillator (abbr.)
80.
Heavenly body having a tail
81. BER, 8 bits at a time
82. Like an inductor coil with a ferrite form |
1. Slang for Ursa Major
2. Analog-to-Digital (abbr.)
3. Integrated Services Digital Network (abbr.)
4. Stock symbol
for National Semiconductor
5. Add two or more inputs
6. Institute of Electrical and Electronics Engineers
7. Chemical
symbol for praseodymium
8. ELI the ICE ___
9. Used logic gates
10. Chemical symbol for neptunium
11. Mathematical
expansion (2 wds.)
16. Providing a complex conjugate impedance match to the end of a transmission line
18. Electron
beam pattern method used in CRTs (2 wds., pl.)
21. A non-commercial radio service as set by a recognized cognizant government
agency (2 wds.)
23. Ham's code for "Shall I send more slowly?"
24. Wired Equivalent Privacy (abbr.)
25. Chemical
symbol for nobelium
27. 39A + ____, the world's best engineering website
30. Unit of time (abbr.)
34. Half of the
diameter (pl.)
36. Referring to a right triangle, the trigonometric function equal to the ratio between the side opposite
a given angle, and the hypotenuse, pl.
38. Relating to sound
41. System On Chip
43. Boob tube (abbr.)
44. Peak
envelope power (abbr.)
46. Opposite of I.D.
47. Cable television (abbr.)
52. Type of logic gate
53. Time Division
Multiplexing
54. Min-to-max voltage of a waveform (abbr.)
56. ______ cosine filter
59. Unit of time (abbr.)
63. BSEE + 2 years
65. Tool for holding parts while working on them
67. Voltage-controlled crystal oscillator (abbr.)
70. Nordic Mobile Telephone
72. Type of digital filter (abbr.)
73. U.S. Spectrum allocation agency
75. Chemical
symbol for thulium
77. Modern battlefield technique (abbr.)
79. Type of logic gate |
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.
2021 | 2020
| 2019 | 2018
| 2017 | 2016
| 2015 | 2014
| 2013 | 2012
| 2011 | 2010
| 2009 | 2008
| 2007 | 2006
| 2005 | 2004
| 2003 | 2002
| 2001 | 2000
| Sudoku
December 25
December 18
December 11
December 4
November 27
November 20
November 13
November 6
October 30
October 23
October 2
September 25
September 18
September 4
August 28
August 21
August 14
August 7
July 31
July 24
July 17
July 10
July 3
June 26
June 19
June 12
June 5
May 29
April 10
March 20
March 13
March 6
February 28
February 21
February 7
January 31
January 24
January 17
January 10
January 3
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