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Electronics Theme Crossword Puzzle
April 30th, 2023

This custom RF Cafe electronics-themed crossword puzzle for April 30th contains words and clues which pertain exclusively to the subjects of electronics, science, physics, mechanics, engineering, power distribution, astronomy, chemistry, etc. Every other row has words beginning with "R" and "F." If you do see names of people or places, they are intimately related to the aforementioned areas of study. As always, you will find no references to numbnut movie stars or fashion designers. Need more crossword RF Cafe puzzles? A list at the bottom of the page links to hundreds of them dating back to the year 2000. 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 April 30, 2023 - RF Cafe

1. Dilbert rodent
6. Wear on a component due to repeated stress
11. Chemical symbol for helium
12. Chemical symbol for arsenic
13. Engineering Change Order (abbr.)
15. Satellite of Jupiter discovered by Galileo
16. Greek letter used for frequency
17. Chemical symbol for silicon
19. Basic storage unit of a database (pl.)
22. Upper frequency (abbr.)
23. High frequency semiconductor (abbr.)
25. Hub of the solar system (pl.)
26. One component of a complex number (abbr.)
27. The last transmission by a station during a contact
28. European equivalent to the U.L.
29. International Telecommunications Union
30. Last stage in a transmitter (abbr.)
31. Local Oscillator (abbr.)
33. Stock symbol for Lockheed Martin
35. Chemical symbol for nobelium
36. Effective frontal area presented to a microwave interrogation system (abbr.)
37. Unit of length (abbr.)
39. Mr. Tesla's first name
40. Code used for automating software task
41. Chemical symbol for radium
42. Wireless transmitting device that opens a car door remotely
43. Shorthand for oxygen
44. Early computer display screen resolution (abbr.)
46. Read-only (abbr.)
48. Unit of length (abbr.)
49. Chemical element abbreviated Sn
50. Chemical symbol for rubidium
52. Thin metallic shield material around coax cable (pl.)
53. Chemical symbol for bismuth
54. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)
56. DXing term used when validity of DX station is in doubt
58. Part of this website's title
59. Units of current
63. Small unit of capacitance (abbr.)
64. Front edge of a wing (abbr.)
65. Chemical symbol for calcium
66. Time division duplex (abbr.)
67. 1e-6 mA
69. Weight (abbr.)
71. Bend electromagnetic energy
72. Equation
1. Chemical symbol for rhodium
2. Active Electronically Scanned Array (abbr.)
3. Stock symbol for Boeing
4. Resistive component of a capacitor's lumped element model (abbr.)
5. Temporary Engineering Change document (abbr.)
6. BASIC looping keyword
7. Service of the ARRL that helps hams solve technical problems (abbr.)
8. Galilean moon
9. Balun with both ports unbalanced
10. Chemical symbol for europium
14. Describes having installed BNC, SMA, N, 7/16, et al
18. International Amateur Radio Union (abbr.)
20. Erbium Doped Fiber Amplifier (abbr.)
21. Stock symbol for Dell Computer
22. Gasoline, diesel, etc.
24. Chemical symbol for selenium
25. Chemical symbol for scandium
29. Having to do with charged particles
30. Type of graph with a circular grid
32. The UK's equivalent of the FCC
34. Largest moon of Saturn
35. Type of logic gate
38. Ham abbreviation for transceiver
45. Amateur Radio Direction Finding (abbr.)
47. Orthogonal frequency-division multiplexing (abbr.)
48. BSEE + 2 years
49. Image file format name extension
51. Filter type that blocks frequencies in a specified band (abbr.)
53. Bandwidth (abbr.)
55. Release control over
57. DXing term used when validity of DX station is in doubt
59. A common battery cell size
60. Push to Talk (abbr.)
61. Radio Direction Finding (abbr.)
62. Signal-to-noise ratio (abbr.)
64. Chemical symbol for lawrencium
65. Chemical symbol for chromium
68. Modulation type (abbr.)
70. Chemical symbol for tantalum

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.

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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














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