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!
TotalTemp Technologies (Thermal Platforms) - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe

RF Cascade Workbook 2018 by RF Cafe

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

Innovative Power Products Couplers

Electronics ABC Theme Crossword Puzzle
January 29th, 2023

This custom made Electronics ABC theme crossword puzzle for January 29th is provided compliments of RF Cafe. The entire alphabet is used for the first letters of words in the top half of the crossword puzzle (marked with an asterisk *). 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 puzzle 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 Crossword Puzzle for January 29th, 2023 - RF Cafe

1. Science of sound*
6. Voltage where insulation is punctured*
11. Chemical symbol for cadmium*
12. Morse Code for "from"*
13. Governmental agency that monitors pollution (abbr.)*
14. Type of modulation (abbr.)*
15. Chemical symbol for silver
17. Min-to-max voltage of a waveform (abbr.)
18. Telecommunications Information Network Architecture (abbr.)
21. Mass unit (abbr.)
23. Opposite of a LO*
24. Multifunctional silicon devices (abbr.)*
25. Passing of a planet in front of the sun
29. Intentionally block communications signals*
31. Switch position
32. Software layer that allows a system to be programmed via a defined set of commands (abbr.)
33. Decimeter (abbr.)
35. Unit of energy
37. A measure of receiver quality (abbr.)
39. Sends a message via Morse Code*
41. Chemical symbol for lanthanum*
42. Type of capacitor dielectric*
44. Chemical symbol for nobelium*
45. Electronics manufacturer with "meatball" logo
46. FCC Part 15 rules apply in this band (abbr.)
47. U.K. equivalent of the IEEE
49. Read-only (abbr.)
50. 300 kHz to 3 MHz
52. Switch position*
54. Chemical symbol for palladium*
55. Type of matrix barcode used with laser scanning(abbr.)*
56. One component of a complex number (abbr.)*
57. Chemical symbol for neodymium
58. Device for linearly adding two or more inputs*
61. PCB interconnect*
63. The "U" in UHF*
66. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)*
67. Write-Once (abbr.)*
68. Far field
70. Integrated Services Digital Network (abbr.)
72. Straight line emanating from a point source
74. One axis of an ellipse
76. IC socket type for easy insertion & removal (abbr.)*
78. It is the "P" in S2P
80. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
83. Chemical symbol for arsenic
85. International Telecommunications Union
87. Amateur Radio on the International Space Station (acr.)
88. Plug-ins for computer buses
91. ______ Mendeleev created the periodic chart of elements
93. Chemical symbol for argon
94. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
95. Shorthand for oxygen
96. Unit of apparent power (abbr.)
97. Chemical symbol for nobelium
98. Chemical symbol for scandium
100. Chemical symbol for lead
101. Stock symbol for Harris Communications
103. Ham's code for "Take over as net control station."
105. Chemical symbol for platinum
106. Army-Navy specification prefix
108. Constellation : The lyre
110. Part of this website's title
111. RF ____, the world's best engineering website
112. Chemical symbol for helium
113. Keyboard key
115. Part of this website's title
116. Stock symbol for Texas Instruments
119. Unit of time (abbr.)
121. Readability, Signal, and Tone (QoS report type)
124. A series of stages in which the output of one stage is the input of the next stage
127. Filter type that blocks frequencies in a specified band (abbr.)
128. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
129. Home state of Los Alamos lab (abbr.)
130. Primary U.S. standards organization founded in 1918 (abbr.)
131. Unit of volume (abbr.)
132. 1/000 of an amp (abbr.)
134. Chemical symbol for europium
137. Unit of heat
138. Chemical symbol for copper
139. Chemical symbol for tin
140. Grouping of wires or cables (pl.)
141. Converts computer code into binary
1. Analog-to-Digital (abbr.)*
2. User Datagram Protocol
3. Chemical symbol for selenium
4. 10E-2 numerical prefix
5. Longitudinal shape-forming structural element
7. Type of flip-flop
8. Sound frequency in the human hearing range (abbr.)
9. Unit of length (abbr.)
10. 1e-6 mA
11. 1/tan*
16. Calendar that followed the Julian calendar*
17. Part of a male connector
18. Coefficient of temperature (abbr.)
19. Indium phosphide (abbr.)
20. Ratio of circumference to diameter
21. Unit for 1,000 watt-seconds (abbr.)
22. Chemical symbol for gallium
23. Chemical symbol for holmium*
24. Thing in a bill of material*
26. A common battery cell size
27. International phonetic alphabet letter "S"
28. Time Division Multiplexing
30. Akin to an EE, CE, AE, etc.
34. Search for data (slang)
36. Chemical symbol for radon
38. Chemical symbol for iron
39. 1,000 seconds (abbr.)*
40. Chemical symbol for silicon
41. Semiconductor lamp*
43. Modulation type (abbr.)
46. Mates a plug to a jack
48. Type of reconfigurable memory (abbr.)
51. More than one FET
53. Intermodulation (abbr.)
55. Type of matrix barcode used with laser scanning(abbr.)*
56. Government program to bring electricity to farms (abbr.)*
59. Country of RF Cafe's residency
60. Modern battlefield technique (abbr.)
61. Frequency (pl.)*
62. Chemical symbol for californium
64. Creating upward force with an airfoil
65. Radio Direction Finding (abbr.)
69. Return-to-Zero (abbr.)
71. Type of 2-input logic gate that outputs a 1 when the inputs are different*
73. Chemical symbol for ytterbium*
75. Aircraft tracking system
77. Type of digital filter (abbr.)
78. Its chemical symbol is Pd
79. Airfoil shapers
81. Substrate for mounting components (abbr.)
82. Chemical symbol for lanthanum
84. Type of component package (abbr.)
86. Singular of criteria
89. Automatons
90. Ham abbreviation for "distant station"
92. Band between RF and BB
94. Co-channel rejection ratio (abbr.)
96. 30 MHz to 300 MHz
99. Chemical symbol for chlorine
102. Chemical symbol for scandium
103. Type of leadless surface mount IC package (abbr., pl.)
104. Chemical symbol for neon
105. Unit of inductance (abbr.)
107. Chemical symbol for neon
109. Scheme to maintain proper frequency (abbr.)
110. Rádio Nacional de Angola (abbr.)
114. Chemical symbol for lawrencium
117. Crystal oscillator (abbr.)
118. Software function selection mechanisms
119. Common plastic insulation type (abbr.)
120. Chemical symbol for selenium
122. Chemical symbol for tin
123. Chemical symbol for thulium
125. PC follower
126. Digital intelligence
127. Chemical symbol for bismuth
131. Mr. Piper's famous yellow airplane
133. ampere-hour (abbr.)
134. BS__ - the degree held by many RF Cafe visitors
135. Unit of time (abbr.)
136. Test equipment (abbr.)
138. Centimeter (abbr.)
139. Chemical symbol for strontium

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
















Electronics Theme Crossword Puzzle Solution for January 29th, 2023

Innovative Power Products Couplers
Copper Mountain Technologies (VNA) - RF Cafe

LadyBug RF Power Sensors

Innovative Power Products Passive RF Products - RF Cafe