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Electronics Theme Crossword Puzzle
January 21, 2024

This custom RF Cafe electronics-themed crossword puzzle for January 21st contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have built up over more than two decades. Being the 21st day, words containing the letter "U" are marked with an asterisk (*). Many new words and company names have been added that had not even been added to the world's technical lexicon when I started in the year 2002. 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. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you. The technically inclined cruciverbalists amongst us will appreciate the effort. A full list of all RF Cafe crosswords is at the page bottom. 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 January 21, 2024 - RF Cafe

1. Decompressing a computer file *
6. Channel used for earth-to-satellite communications *
9. User Datagram Protocol *
13. Ratio of circumference to diameter
14. 300 kHz to 3 MHz
15. Chemical symbol for argon
16. Front edge of a wing (abbr.)
17. Type of antenna with an element made of a single, flexible rod or tube
18. Chemical symbol for helium
20. What can we call any material in the form of a liquid or a gas *
25. Is behind in phase
27. Unit of inductance (abbr.)
28. Modulation type (abbr.)
29. Finite-Element Model
31. Coordinated Universal Time (abbr.) *
32. Universal Mobile Telecommunications System (abbr.) *
34. World's 1st fully electronic digital computer (abbr.)
36. Chemical symbol for silicon
39. Chemical symbol for beryllium
40. Electrical safety organization (abbr.) *
41. Chemical symbol for thallium
43. Switch type with guaranteed default position
45. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
46. Ham-ese for Young Lady
47. Chemical symbol for radium
48. Chemical symbol for lutetium *
53. A repeater that receives further than it can transmit, big ears, small mouth
55. Opposite of O.D.
57. What a capacitor is used for regarding energy
58. Small unit of capacitance (abbr.)
59. Describes an amplifier with a multiplier of 1 (2 wds.) *
60. Chemical symbol for terbium
62. Chemical symbol for scandium
63. Constellation of the greater bear (2 wds.) *
67. Unit of inductance (abbr.)
69. International phonetic alphabet letter "U" *
73. Switch position
74. Emits electromagnetic energy
76. Centimeter (abbr.)
77. Chemical symbol for beryllium
78. 1.602E-19 Joules
79. Empty space left in rocket fuel tank to allow for fuel expansion *
81. Flame resistant material
85. Chemical symbol for tin
86. Unit of time (abbr.) *
87. Type of modulation (abbr.)
89. Abbreviation for, Becquerel, the unit of radioactive activity
90. Using a logical connection scheme for redundant power supplies
92. Type of antenna with four-sided loops *
93. Programmable logic device (abbr.)
95. Specialized mobile radio (abbr.)
97. Chemical symbol for rhodium
98. Semiconductor and calculator company (abbr.)
99. Web page language
100. Remove insulation from a wire
102. Chemical symbol for selenium
103. Multichannel multipoint distribution service
105. Chemical symbol for tantalum
106. Type of component package (abbr.)
107. Electromagnetic (abbr.)
108. Unit of volume (abbr.)
110. Half of DSB
111. Channel used for earth-to-satellite communications *
112. Constellation of the little bear (2 wds.) *
2. Chemical symbol for neptunium
3. IC socket type for easy insertion & removal (abbr.)
4. Intermodulation distortion (abbr.)
5. A measure of receiver quality (abbr.)
6. Internet addresses *
7. Precision landing system (abbr.)
8. Chemical symbol for neon
9. Unit of inductance (abbr.) *
10. 2/3 of a triac
11. Parts per million (abbr.)
12. Integrated radio front-end for the 300 MHz to 3 GHz band (abbr., 2 wds., pl.) *
17. Color code for the number 9
19. BS__ - the degree held by many RF Cafe visitors
21. Chemical symbol for lutetium *
22. UMTS terrestrial radio access (abbr.) *
23. Multifunctional silicon devices (abbr.)
24. Miniature RF connector
26. International phonetic alphabet letter "G"
27. Chemical symbol for manganese
30. Degree of IC sophistication (abbr.)
33. Test equipment (abbr.)
34. 10E18 bits of data
35. Chemical symbol for aluminum
37. S12 or S21 (abbr.)
38. Impenetrable physical barrier
40. Seventh planet from the sun **
42. First American to orbit the earth - John _____
44. Release control over
48. Filter type that blocks upper frequencies (abbr.)
49. Integrated radio front-end for the 300 MHz to 3 GHz band (abbr., 2 wds.) *
50. Very large unit of apparent power (abbr.)
51. Part of a FOR loop
52. 1e-6 mA
54. RF connector type
56. Chemical symbol for dysprosium
60. Telex-Over-Radio (abbr.)
61. Securing devices
63. One cutoff frequency specification for a bandpass filter *
64. Below ELF
65. Chemical symbol for molybdenum
66. The "A" in DAC
68. Amateur radio enthusiast
69. A compiler directive *
70. Band between RF and BB
71. Type of logic gate
72. Used a DMM or o-scope *
75. Online auction site
79. Volts, meters, pints, pounds, eg. *
80. Sudden, brief increase in wind speed *
82. CB slang for policeman
83. Chemical symbol for antimony
84. Slang for when a professor hints at an exam problem (abbr.)
85. Chemical symbol for strontium
87. Upper frequency (abbr.) *
88. milliampere-hour (abbr.)
90. Unit of resistance (pl.)
91. Chemical symbol for nickel
92. Quadrature Phase Shift Keying (abbr.)
93. Chemical symbol for platinum
94. Chemical symbol for lithium
96. 1E6 nanoseconds
97. Common average used for sinewaves (abbr.)
99. The computer in 2001: A Space Odyssey
100. "Texting" (abbr.)
101. The cell band above DCN
104. Logarithmic ratio (abbr.)
105. Test point (abbr.)
107. Chemical symbol for erbium
109. Chemical symbol for cobalt

See solution below
2024 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.

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Electronics Theme Crossword Puzzle Solution for January 21, 2024 - RF Cafe 

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