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. This one has extra words pertaining to radar
and radio. 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. Part of this puzzle's theme 5. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.) 10. Shape
of most radar and other high gain antennas 16. Encased in a protective covering 17. 300 MHz to 3 GHz 18. European
equivalent to the U.L. 20. Used logic gates 21. Test equipment (abbr.) 23. Multifunctional silicon devices (abbr.)
25. Display type 26. Unit of inductance (abbr.) 28. Miniature threaded RF connector 29. Unit of inductance (abbr.)
30. Part of this puzzle's theme 33. Stock symbol for Raytheon 34. Constellation : The lion 36. Term for asymmetry
of a statistical distribution 37. Light 38. Ham's code for "Take over as net control station." 39. Part of PCB
41. Computer "brain" (abbr.) 43. Electronics Industry Association (abbr.) 44. Greek letter used for frequency 45.
PCB metal area where component leads attach (pl.) 47. s11, s22, s33, etc. (2 wds.) 50. Type of current flow (abbr.)
53. PC follower 54. Vacuum tube type for a high power, high frequency radar transmitter (pl.) 59. Nickname for a company
or person that manufactures its own products 62. Opposite of I.D. 64. Type of data storage IC 65. Peak Inverse
Voltage 66. Hub of the solar system 67. The "N" in AWGN 70. Official Space Shuttle designation (abbr.) 71. Coefficient
of temperature (abbr.) 73. Gasoline, diesel, etc. 75. Scheme used in radar to cancel out stationary targets like ground
clutter (abbr.) 76. U.K. equivalent of the IEEE 77. O-scope time base action 78. A common battery cell size
79. Type of logic gate (pl.) 81. Chemical symbol for europium 83. Digital storage oscilloscope (abbr.) 84. Chemical
symbol for erbium 85. 1E6 nanoseconds 88. Plural of locus 90. Filter type that blocks frequencies in a specified
band (abbr.) 91. Short for potentiometer 93. RF computer network 95. A number series that has each number equal
to the sum of the two previous numbers 96. It connects the software to the hardware 97. An amplifier port |
1. Readability, Signal, and Tone (QoS report type) 2. Type of current 3. Consequence of under sampling 4. Radio
Amateurs of Canada (abbr.) 6. Upper frequency (abbr.) 7. International phonetic alphabet letter "C" 8. Sound frequency
in the human hearing range (abbr.) 9. Occlusion of one heavenly body by another 11. Unit of electromagnetic radiation
12. Chemical symbol for argon 13. 10 decibels 14. Opposite of I.D. 15. Chemical symbol for selenium 19. Engineering
Change Order (abbr.) 22. Chemical symbol for einsteinium 24. Code for a type of electrical wire insulation (abbr.)
26. Finite Element Analysis (abbr.) 27. 29 Down + ____, used to interface transmission line to an antenna 29. ___
+ 27 Down, used to interface transmission line to an antenna 31. A common battery cell size 32. Decimeter (abbr.)
33. Chemical symbol for radon 34. Local Oscillator (abbr.) 35. Plane geometric figure having eight straight sides
38. Ham's code for "The net has traffic for you. Stand by." 39. Group of data to be saved 40. When the upper atmosphere
acts like a waveguide 42. Electrical safety organization (abbr.) 46. Negatively doped silicon 48. Semiconductor
and calculator company (abbr.) 49. Chemical symbol for radium 51. A "0" or a "1," for instance 52. Read-only (abbr.)
55. The "As" in GaAs 56. Common average used for sinewaves (abbr.) 57. Collection of access points 58. Analog multimeter
company 60. Prefix meaning "water" 61. Type of flip-flop 63. Weatherproof cover for a radar antenna 68. International
Telecommunications Union 69. Chemical symbol for silicon 72. European equivalent to the U.L. 73. Facsimile 74.
Long Range Aid to Navigation 77. Half of DSB 80. Type of component package (abbr.) 82. Charged particle 84.
Voltage-current phase mnemonic 86. Adjust a pot 87. Unit of capacitance (abbr.) 88. Local Oscillator (abbr.)
89. Chemical symbol for calcium 91. Chemical symbol for praseodymium 92. Test equipment (abbr.) 94. Chemical symbol
for neptunium |
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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