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Electronics Theme Crossword Puzzle
September 24th, 2023

This week's crossword puzzle for September 24th sports an electronics theme. This being the twenty-fourth day of the month, many of the words begin and/or end with and/or contain the letter "X" (denoted by an asterisk). Expect a few repeats, since words with and "X" in them are harder to come by. 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 Theme Crossword Puzzle for September 24th, 2023 - RF Cafe


1. Chemical symbol for xenon *
3. Chemical symbol for ruthenium
5. Greek letter *
7. Chemical symbol for beryllium oxide
8. 10^9 bits per second (abbr.)
10. Yttrium Aluminum Garnet
12. Akin to an EE, CE, AE, etc.
13. Below ELF
15. Internet address (abbr.)
17. Type of logic gate
19. Intentionally block communications signals
21. Taking two or more input signals, and produces an output that includes the sum and difference of those signal frequencies *
22. Precision landing system (abbr.)
23. Factor of a polynomial
25. 2 GHz to 4 GHz
30. _/_-___, maker of RF semiconductors and connectors
35. Mr. Tesla's first name
39. ___/IP scheme for networked connectivity
40. Same as 30 Across, but no longer uses the slash or the dash
43. Type of 2-input logic gate that outputs a 1 when the inputs are different *
44. Considered the 4th dimension
46. Abbreviation for peak voltage
47. Type of data conversion device (abbr., pl.)
49. Chemical symbol for mercury
50. Greek letter *
51. Chemical symbol for gallium
53. Termination
55. Positive emitter-coupled logic (abbr.)
58. Crystal oscillator (abbr.) *
59. Cause a voltage or current waveform to gradually die out
60. Capacitor manufacturer
61. 10^9 bits per second (abbr.)
64. Small representative graphic
68. Chemical symbol for erbium
69. Mate to a TX *
71. Chemical symbol for lithium
73. Slang for helicopter
75. Multifunctional silicon devices (abbr.)
76. Highest point *
78. Temporary Engineering Change document (abbr.)
79. kOhm x 1,000
82. Display type
84. British term for vacuum tube (pl.)
86. Science of light transmission
89. Web service for cross referencing domain names, IP addresses, owners, etc.
93. SIgnal to Noise And Distortion (abbr.)
97. Semiconductor On Insulator (abbr.)
98. Integral of the magnetic vector field over a surface (pl.) *
99. Unit of length equal to 5.5 yards
101. Filter type that blocks frequencies in a specified band (abbr.)
102. Radio frequency interference (abbr.)
103. Stock symbol for Advanced Micro Devices
105. Unit of apparent power (abbr.)
106. Mass unit (abbr., pl.)
108. Query an input for changes
111. Current-voltage phase mnemonic
113. Radio signals from the cosmos (abbr.)
114. Morse Code for "from"
115. Unit of time (abbr.)


1. Chemical symbol for xenon
2. Electrical overstress (abbr.)
3. Chemical symbol for rubidium
4. One type of electron spin
5. Amateurese for "wife" *
6. State where teen techno-sleuths Carl and Jerry lived (abbr.)
7. CB slang for policeman
8. Ground fault interrupter (abbr., pl.)
9. Hub of the solar system (pl.)
11. A common IC bondwire metal
12. Unit for 1,000,000 watt-seconds (abbr.)
14. Stock symbol for Lockheed Martin
16. Computer monitor cable type (abbr.)
18. Type of flip-flop
20. Chemical symbol for molybdenum
22. One port of an amplifier
24. Optical cross-connect (abbr.) *
26. A type of digital modulation (abbr.)
27. Nordic Mobile Telephone
29. Far field
31. Advanced Communication Technologies and Services (abbr.)
32. Software layer that allows a system to be programmed via a defined set of commands (abbr.)
33. Greek letter used for resistance
34. 1/000 of an amp (abbr.)
35. Chemical symbol for nobelium
36. A false signal produced in a superheterodyne receiver’s circuitry
37. Optical cross-connect (abbr.) *
38. Signal amplitude degradation due to inefficiency
41. Capacitor manufacturer
42. Printer output resolution unit (abbr.)
45. Unit of admittance
48. Type of data conversion device (abbr.)
52. Stock symbol for Texas Instruments *
53. Numerical basis for decibels (abbr.)
54. Direct Digital Synthesis (abbr.)
55. Computer monitor resolution measure (abbr.)
56. Computer communication scheme (abbr.)
57. Variable crystal oscillator (abbr.) *
62. 10 decibels
63. What kind of a number is divisible only by itself and 1
65. Voltage limiter
66. Output intercept point (abbr.)
67. Moon of Saturn discovered in 1672
69. Slang for transmitter and/or receiver
70. Crystal oscillator (abbr.) *
72. Award offered by ARRL for contacting and confirming 100 or more different countries (abbr.) *
74. High-speed logic family
77. Voltage-current phase mnemonic
78. Television Interference (abbr.)
80. Chemical symbol for einsteinium
81. Chemical symbol for holmium
83. 2 x SSB
85. Variable crystal oscillator (abbr.) *
87. Stock symbol for Texas Instruments *
89. Its unit is the erg or joule
90. Opposite of a LO
91. Type of secondary radar system (abbr.)
92. Describes when a synchronous motor loses phase lock
93. Impenetrable physical barrier
94. FCC Part 15 rules apply in this band (abbr.)
95. Chemical symbol for argon
96. ____tail, a type of strong wood joint
97. Chemical symbol for antimony
100. 10E1 numerical prefix
102. Readability, Signal, and Tone (QoS report type)
104. SIP x 2
107. Electronics manufacturer with "meatball" logo
109. Opposite of I.D.
110. Front edge of a wing (abbr.)
112. Chemical symbol for cesium

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.

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