Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Innovative Power Products Passive RF Products - RF Cafe

Axiom Test Equipment - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Temwell Filters

Electronics Theme Crossword Puzzle
Merry Christmas!
December 24, 2023

This Electronics theme Christmas Crossword Puzzle for December 24th has many words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects, along with a holiday message. There is also a holiday greeting contained within. 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 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 Christmas Crossword Puzzle for December 24th, 2023 - RF Cafe

1. Chemical symbol for francium
3. Collection of electronic records (pl.)
9. Unit of frequency (archaic, abbr.)
11. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr., pl.)
12. Number system which uses only the digits 0 to 7
13. International Reply Coupon (abbr.)
16. Ham's code for "What is the correct time?"
17. One possible go-no-go test result
18. Quickly changing portion of waveform
20. Unit of capacitance (abbr.)
21. 30 kHz to 300 kHz
23. Imaging device (abbr.)
25. Bandwidth (abbr.)
26. Opposite of O.D.
27. One of four lines used in ferrite core memories
29. C# statement that ensures Dispose is called even if an exception occurs
31. Cause a voltage or current waveform to gradually die out
34. First part of this crossword puzzle's message
36. Plain Old Telephone System
38. 24 hours
39. Term indicating profitability of a company (abbr.)
40. Type of data conversion device (abbr.)
41. Chemical symbol for bismuth
42. Unit of apparent power (abbr.)
43. Chemical symbol for einsteinium
45. Min-to-max voltage of a waveform (abbr.)
47. Chemical symbol for helium
48. Chemical symbol for nobelium
50. Early operating system (still popular)
52. Hedy _____, Hollywood actress with first patent for spread spectrum communications
54. Temperature-compensated crystal oscillator (abbr.)
56. Decimeter (abbr.)
57. Upper frequency (abbr.)
58. Equalizer (abbr.)
60. Radio signals from the cosmos (abbr.)
62. Intermodulation (abbr.)
63. Chemical symbol for europium
65. Scheme to maintain proper frequency (abbr.)
67. After Uranus
70. Coordinated Universal Time (abbr.)
72. Semiconductor and calculator company (abbr.)
73. Galilean moon
74. BS__ - the degree held by many RF Cafe visitors
75. Chemical symbol for cesium
76. Part of a FOR loop
78. Chemical symbol for thallium
79. Second part of this crossword puzzle's message
84. Chemical symbol for cadmium
85. Chemical symbol for erbium
86. Chemical symbol for beryllium
87. 1e-6 mA
89. PC follower
90. Modulation type (abbr.)
92. Pads
93. Mathematical relationship of voltage, resistance, and current in a circuit (2 wds.)
97. Electromagnetic surveillance thwarting technology
101. Having power applied (slang)
102. Schematic label for voltage supply node
103. Start frequency (abbr.)
104. Unit of length (abbr.)
1. Start frequency (abbr.)
2. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
3. Bores a holes
4. Airport Surveillance Radar (abbr.)
5. Army-Navy specification prefix
6. Chemical symbol for arsenic
7. End of transmission (abbr.)
8. Threaded fastener (pl.)
9. Amount of deviation from nominal and still being within specification
10. Chemical symbol for chlorine
14. Centimeter (abbr.)
15. Common plastic insulation type (abbr.)
16. Unit of mass flow rate (abbr.)
17. Added an overcurrent protection device
19. Quickly changing portions of waveforms
22. Finite Element Analysis (abbr.)
23. CB slang for police speed radar
24. Unit of angular measurement equal to one ninetieth of a right angle
25. Manufacturer of project boxes
28. Electric enclosure standard organization (abbr.)
30. Apple's popular media playing device
32. Ticker symbol for Analog Devices
33. Heat-resistant glass type
35. Read-only (abbr.)
36. Display a radar target
37. ___/IP scheme for networked connectivity
41. Digital transmission speed (2 wds.)
42. Its units are expressed in a cubic of length
44. Vacuum tube grid placed between control grid and plate in a pentode
46. Formal set of rules and procedures for the exchange of information within a communications network
47. Opposite of a LO
49. Amateur radio abbreviation for the Oceania region (abbr.)
51. Home state of Los Alamos lab (abbr.)
53. Chemical symbol for magnesium
55. Chemical symbol for xenon
57. A final surface coating
59. Numerical prefix for 10^30
61. Unit of volume (abbr.)
64. Chemical symbol for lutetium
66. The "F" in EMF
68. Max or min voltage of a waveform (abbr.)
69. Unit of time (abbr.)
71. Largest moon of Saturn
75. International Telegraphy and Telephony Consultative Committee
77. International phonetic alphabet letter "O"
80. One component of a complex number (abbr.)
81. Infrared (abbr.)
82. Chemical symbol for terbium
83. Akin to an EE, CE, AE, etc.
84. Negative terminal
88. Test equipment vendor
89. A common battery cell size
91. 1E6 nanoseconds
94. 3 GHz to 30 GHz
95. Line of Sight (abbr.)
96. PC follower
98. 1.602E-19 Joules
99. Wire diameter unit (abbr.)
100. Modulation technique (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.

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
















Radio Theme Christmas Crossword Puzzle Solution for December 24th, 2023 - RF Cafe

Temwell Filters
Cafe Press

TotalTemp Technologies (Thermal Platforms) - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe