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Electronics Theme Crossword Puzzle - Final for 2023!
December 31st, 2023

This week's crossword puzzle for December 31st sports an electronics theme. Hard to believe it is the final crossword for 2023! This being the 31st day of the month, many of the words begin and/or end with the letter "E." Since there are only 26 letters in the alphabet, I use the modulo function to derive the letter to use; i.e., 31 mod 26 = 5. Clues for words containing "E" are marked with an asterisk (*). Related clues are marked with an asterisk (*). All RF Cafe crossword puzzles are custom made by me, Kirt Blattenberger, and have only words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. As always, this crossword contains no names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort unless it/he/she is related to this puzzle's technology theme (e.g., Reginald Denny, Hedy Lamarr, or the Tunguska event in Siberia). The technically inclined cruciverbalists amongst us will appreciate the effort. Enjoy!

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Electronics Themed Crossword Puzzle for December 31st, 2023 - RF Cafe

1. The "E" in laser (pl.) *
7. Type of semiconductor construction used in RF power amplifiers (abbr.)
9. Weatherproof cover for a radar antenna (pl.) *
12. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
13. Science of assuring operation amid dense EM background noise (abbr.) *
16. Army-Navy specification prefix
18. Angular speed unit
20. State _______ - A type of drawing used in computer science and related fields to describe the behavior of systems
24. Design for Manufacturability (abbr.)
26. Rate of a radar transmitter's output waveform (abbr.)
27. Special diode type that can be switched (abbr.)
28. A keyboard key *
29. Type of data conversion device (abbr.)
31. Galilean moon
32. BS__ - the degree held by many RF Cafe visitors *
34. Ethoxyethane *
36. Sporadic E-layer ionospheric propagation (hyph.) *
38. Color code for the number 3 *
41. Communication between stations by reflecting the radio waves off of the ionosphere
42. Voltage-controlled oscillator (abbr.)
43. Chemical symbol for lutetium
44. Ratio of a mechanical drawing *
46. Wireless phone regions *
48. Chemical symbol for molybdenum
49. Minutes of Use (abbr.)
50. Computer interconnection scheme (abbr.)
51. Decimeter (abbr.)
53. Quickly changing portions of waveforms *
56. Swiss mathematician who extensively studied complex numbers *
59. Chemical symbol for xenon *
61. Resistive component of a capacitor's lumped element model (abbr.) *
62. ___-AZIMUTH telescope mount
64. Signal-to-noise ratio (abbr.)
65. Chemical symbol for erbium *
66. S12 or S21 (abbr.)
67. Decimeter (abbr.)
68. The "E" in EHF *
70. Chemical symbol for arsenic
71. Chemical symbol for xenon *
72. Circuit for maintaining constant voltage (abbr.)
74. Using Earth's natural satellite as a passive reflector to establish a signal path (abbr.) *
75. Multifunctional silicon devices (abbr., pl.)
77. Hz
78. Parts _____
80. Occlusion of one heavenly body by another *
82. Official engineering change document (abbr., pl.) *
83. Substrate for mounting component (abbr., pl.)
85. Official Space Shuttle designation (abbr.)
86. More than one XCVR
88. Chemical symbol for selenium *
89. One of the Ws in WWW *
92. Logic gate output configuration (abbr.)
93. One component of a complex number (abbr.) *
94. Does not pass electrical test
96. That which has arrived when the familiar jingle from AOL is heard (hyph.) *
98. Type of reconfigurable memory (abbr.) *
99. System for underwater navigation (pl.)
100. Printed Wiring Board (abbr.)
101. Readability, Signal, and Tone (QoS report type)
1. Nuclear explosion byproduct harmful to electronics (abbr.) *
2. Forms into a specific shape
3. Network department (abbr.)
4. Opposite of I.D.
5. Chemical symbol for nobelium
6. Miniature threaded RF connector
8. Logarithmic unit of power
10. Last statement in a BASIC program *
11. The "E" in BER *
13. Third planet from the sun *
14. Chemical symbol for magnesium
15. Slow flow of metal when under high temperature or great pressure *
17. Computer messaging service *
19. Unit of capacitance (abbr.)
21. Current-voltage phase mnemonic *
22. Airport Surveillance Radar (abbr.)
23. Unit of frequency (archaic, abbr.)
25. Electronics components & batteries supplier based in Japan
26. What is the alternative name for a pi meson
30. The "brains" of parallel processing computers (pl.)
32. Integrated data onto a carrier wave *
33. Enhanced Graphics Adapter *
35. Having power applied (slang)
36. High-speed logic family *
37. Attaches components to a PCB *
39. Mechanical engineering organization (abbr.) *
40. Traditional term for a person who enjoys helping newcomers get started in ham radio - a mentor *
42. The evening (or morning) star *
45. Electrical overstress (abbr.) *
46. Software engineering tool (abbr.) *
47. Specialized mobile radio (abbr.)
52. Leaded component type
54. Global System for Mobile Communications (abbr.)
55. ___-AZIMUTH telescope mount
57. Low Noise Amplifier (abbr.)
58. Cambridge University _____, technical book publisher *
60. Curve produced when a cone is cut by an oblique plane which does not intersect the base *
62. Wheel attachment points *
63. Causes a circuit breaker to open
65. Lays bare, such as a wire *
68. Science of assuring operation amid dense EM background noise (abbr.) *
69. Automatic Calibration System (abbr.)
73. Certificate of Successful Completion of Examination (abbr.) *
74. Abbreviation for kind of degree held by circuit designers *
76. Navigational device that measures star positions *
77. Co-channel rejection ratio (abbr.)
79. Chemical symbol for terbium
81. Network department (abbr.)
82. 1.602E-19 Joules *
84. ____ Meet, a Ham's flea market
87. Cellular Telecommunications Industry Association
90. Antenna radiated power measurement (abbr.) *
91. Open a fuse
92. Logic family
94. Chemical symbol for iron *
95. Miniature RF connector
96. Resistive component of a capacitor's lumped element model (abbr.) *
97. Chemical symbol for lawrencium

See solution below
2023 Crosswords Archive

Visit the Crossword Express website - RF CafeTake 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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 31

December 24

December 17

December 10

December 3

November 26

November 19

November 12

November 5

R-E Puzzler - August 1967 R-E

October 29

October 22

October 15

October 8

October 1

September 24

September 17

September 10

September 3


August 27

August 20

August 13

August 6

Electronic Numbers - May 1961 R-E

July 30

July 23

July 16

July 9

R-E Puzzler - Oct 1967 R-E

July 2

June 25

June 18

June 11

June 4

May 28

May 21

May 14

May 7


April 30

April 23

April 16

April 9 - Easter

R-E Puzzler - Jan 1967 R-E

April 2

March 26

March 19

March 12

March 5

February 26

February 19

February 12

February 5

January 29

January 22

January 15

January 8

January 1














Electronics Theme Crossword Puzzle Solution for December 31st, 2023 - RF Cafe

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