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Radio Theme Crossword Puzzle
Merry Christmas!
December 25, 2022

This Radio Theme Christmas Crossword Puzzle for December 25th 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

Radio Theme Christmas Crossword Puzzle for December 25th, 2022 - RF Cafe

1. 1e-6 mA (abbr.)
3. Unit of capacitance
9. Filter type that blocks frequencies in a specified band (abbr.)
11. Color code for the number 6 (pl.)
12. Having to do with charged particles
13. Digital pattern coding type (abbr.)
16. Flash caused by an electric current ionizing a gas or vapor
17. Software function selection mechanism
18. The "T" in ATE
20. Analog-to-Digital (abbr.)
21. Front edge of a wing (abbr.)
23. Electronic component package type (abbr.)
25. Local Oscillator (abbr.)
26. BS__ - the degree held by many RF Cafe visitors
27. Relating to the sun
29. Another name for a test lead (pl.)
31. The "S" in CES, the world's largest yearly convention of gadget and device manufacturers
34. Color code for the number 5
36. Prefix meaning ground or earth
38. Airport Surveillance Radar (abbr.)
39. Error checking scheme (abbr.)
40. BlackBerry or Palm for example (abbr.)
41. Unit of length (abbr.)
42. Electronics manufacturer with "meatball" logo
43. Chemical symbol for thallium
45. Chemical symbol for cesium
47. Network department (abbr.)
48. Type of current
50. Geometric entity with only length
52. This puzzle's holiday message: _____ + 79 Across
54. Move in a raster pattern
56. Type of logic gate
57. Chemical symbol for antimony
58. Equalizer (abbr.)
60. Chemical symbol for copper
62. Last stage in a transmitter (abbr.)
63. Chemical symbol for ruthenium
65. Compound used as the frequency determining element in microwave oscillators
67. Curve produced when a cone is cut by an oblique plane which does not intersect the base
70. Ham's code for "Shall I increase power?"
72. Time delay (abbr.)
73. Opposite of a LO
74. BS__ - the degree held by many RF Cafe visitors
75. Multifunctional silicon devices (abbr.)
76. Part of a FOR loop
78. Opposite of I.D.
79. This puzzle's holiday message: 52 Across + _________
84. S12 or S21 (abbr.)
85. Unix, Linux or Windows (abbr.)
86. Stock symbol for Boeing
87. Chemical symbol for erbium
89. Chemical symbol for manganese
90. Modulation type (abbr.)
92. The "O" in VCO (pl.)
93. Named a software object
97. Dilbert rodent
101. Type of data storage IC
102. Key feature in a high level overvoltage protection device
103. Min-to-max voltage of a waveform (abbr.)
104. Unit of capacitance (abbr.)
1. Chemical symbol for niobium
2. Fraction of incident light or radiation reflected by a surface or body
3. Irradiated cosmic gas
4. File name extension for an ASCII file
5. Ordered array (abbr.)
6. A common battery cell size
7. Powers pneumatic devices
8. Ph.D.
9. Having a DC voltage reference
10. Chemical symbol for scandium
14. Decimeter (abbr.)
15. Original Equipment Manufacturer (abbr.)
16. Sound frequency in the human hearing range (abbr.)
17. Waveform limit definition (pl.)
19. Nikola _____
22. Unit of energy
23. One port on a FET
24. Recover the modulation from the RF signal
25. Filter type that blocks upper frequencies (abbr.)
28. Low altitude earth orbit
30. Used logic gates
32. Amateur radio enthusiast
33. Transfer data to a disk
35. Chemical symbol for erbium
36. Attenuator topology (pl.)
37. Radio Amateurs of Canada (abbr.)
41. Packet of 10^3 sets of 8 digital "0" or "1" symbols
42. Part of a gyroscope that facilitates free movement of the reference sphere
44. One tier of a PCB (pl.)
46. Waveform that follows a sine function
47. One port of an amplifier
49. Unit of volume (abbr.)
51. Infrared (abbr.)
53. Mate to a TX
55. Type of current flow (abbr.)
57. Verbal communications
59. Numerical prefix for 10^30
61. Chemical symbol for mercury
64. Equalizer (abbr.)
66. Theoretical
68. Chemical symbol for lawrencium
69. Unit of time (abbr.)
71. _____&Schwarz
75. Small representative graphics
77. International phonetic alphabet letter "O"
80. Read-only (abbr.)
81. Network department (abbr.)
82. Chemical symbol for terbium
83. 1/000 of an amp (abbr.)
84. Waveform described by a Dirac delta function
88. Filter supplier located in Gaithersburg, MD
89. Chemical symbol for molybdenum
91. 1E6 nanoseconds
94. Effective Radiated Power (abbr.)
95. Polish a crystal to an exact frequency
96. Electromagnetic (abbr.)
98. Chemical symbol for silver
99. Transformer interwinding connection
100. Filter type (abbr.)

See solution below


2022 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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