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Electronics Theme Crossword Puzzle
October 1st, 2023

This custom RF Cafe electronics-themed crossword puzzle for October 1st contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc., which I have built up over more than two decades. 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 forOctober 1st, 2023 - RF Cafe

1. Manned rocket series that went to the moon *
6. Nearest and furthest points to the center of gravitational attraction for a body in orbit (pl.) *
11. Type of memory
12. Coefficient of temperature (abbr.)
14. Radio Amateur Civil Emergency Service (abbr.) *
16. S12 or S21 (abbr.)
17. Horizontal Cartesian coordinate **
20. Chemical symbol for iron
21. Total radiated power (abbr.)
22. Chemically react to harden
24. Chemical symbol for tin
25. Miniature threaded RF connector *
28. Between-series connectors **
32. Frequency Division Duplex
34. Opposite of O.D.
35. Heterojunction Bipolar Transistor
38. Schematic label for voltage supply node
40. 1e3 uV
41. Cable covered by strong jacket *
42. Enhanced Graphics Adapter *
43. A BPF specification (abbr.)
45. Workplace safety group (abbr.) *
47. Material testing organization (abbr.) *
49. Chemical symbol for lanthanum *
51. Miniature RF connector
53. An angle described by hypotenuse/opposite sides of a right triangle *
56. Chemical symbol for silver *
57. Common gateway interface (abbr.)
59. Original Equipment Manufacturer (abbr.)
60. Chemical symbol for chlorine
62. Online service *
65. Alternative name for meteorite *
68. Gun safety and education organization (abbr.) *
70. Chemical symbol for polonium
71. Programmable logic device type (abbr., pl.) *
72. RF connector type
74. Chemical symbol for mendelevium
75. Chunk of space rock *
78. Chemical symbol for palladium
79. Rechargeable battery type (abbr.) *
82. Multifunctional silicon devices (abbr.)
83. Ultra High Voltage (abbr.)
84. Radio Amateur Satellite Corporation (abbr.) **
85. MS database *
1. Online service *
2. Related to FM by a differential
3. Constellation : The scales *
4. Optical cross-connect (abbr.)
5. A common RS-232 serial bus command (abbr.)
7. Chemical symbol for praseodymium
8. Fail-____ switch *
9. Current-voltage phase mnemonic
10. Chemical symbol for selenium
11. Airfoil shapers
13. Certificate of Successful Completion of Examination (abbr.)
15. Hub of the solar system (pl.)
17. PC follower *
18. Switch configuration (abbr.)
19. Type of propagation above 30 MHz by means of refraction by highly ionized regions around the Earth’s poles **
23. Type of flip-flop
26. 300 kHz to 3 MHz
27. The "A" in DARPA **
29. Point of rotation
30. Time delay (abbr.)
31. Wearing away of a surface **
33. Type of current
35. Chemical symbol for holmium
36. Test equipment (abbr.)
37. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
39. Chemical symbol for californium
41. ampere-hour (abbr.) *
44. Unit of luminosity **
46. The "S" in SOIC *
48. Chemical symbol for selenium
50. Type of current flow (abbr.) *
52. Chemical symbol for bismuth
54. Read-only (abbr.)
55. Type of component package (abbr.)
58. Chemical symbol for gallium *
60. Chemical symbol for cobalt
61. Prefix for 10E-18 *
63. Chemical symbol for lawrencium
64. Broadband passive optical network (abbr.)
65. A common battery cell size **
66. Receiver power level circuitry (abbr.)
67. World's 1st fully electronic digital computer (abbr.) *
69. Ad-hoc on demand distance vector (abbr.) *
71. BlackBerry or Jordana for example (abbr., pl.) *
73. Chemical symbol for cadmium
74. Wire diameter unit (abbr.)
76. ___/IP scheme for networked connectivity
77. Government program to bring electricity to farms (abbr.) *
78. Personal Handy Phone System (abbr.)
80. State where teen techno-sleuths Carl and Jerry lived (abbr.) *
81. 10E1 numerical prefix *
83. Unit of time (abbr.)

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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November 19

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November 5

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October 29

October 22

October 15

October 8

October 1

September 24

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August 27

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Electronic Numbers - May 1961 R-E

July 30

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R-E Puzzler - Jan 1967 R-E

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Electronics Theme Crossword Puzzle Solution for October 1st, 2023 - RF Cafe 

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Kirt Blattenberger - RF Cafe Webmaster

1996 - 2024


Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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