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Independence Day Theme Crossword Puzzle
July 4th, 2022

In these times of communists and Marxists (and other "-ists") infiltrating high positions of American government and destroying our hard-won legacy of freedom, compassion, traditional family values, hard work, and patriotism, this Independence Day theme crossword puzzle is created to celebrate our heritage and resist the corrupters. The Cancel Culture mobs will never dissuade our staff (Melanie and me) here at RF Cafe! Clues with an asterisk (*) are related to the puzzle's theme.

All crossword puzzles use a personally built dictionary of thousands of 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

Independence Day Theme Crossword Puzzle for July 4th, 2022 - RF Cafe

2. Additive white Gaussian noise
5. Chemical symbol for calcium
8. Army-Navy specification prefix
10. Send a wireless to an early hip-worn wireless device
15. Half of a DIP
16. ____ + 123 Down, signer of the Declaration of Independence*
17. Have a positive phase wrt a reference
18. Government program to bring electricity to farms (abbr.)
19. Mr. Bohr's first name
20. A famous LEO satellite constellation (originally to be 77 satellites)
21. New company formed by RFMD and TriQuint merger
22. Unit of volume (abbr.)
23. Related to FM by a differential
25. Ratio of circumference to diameter
26. 1/000 of an amp (abbr.)
27. Filter type that blocks frequencies below and above a specified band (abbr.)
29. Type of flip-flop
30. Chemical symbol for silver
31. The LM741 was the first
34. Using a logical connection scheme for redundant power supplies
36. Chemical symbol for mercury
38. Army-Navy specification prefix
39. Early predecessor to an online forum (abbr.)
41. Silicon transistor type (abbr.)
43. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
45. A three-terminal power semiconductor device noted for high efficiency and fast switching (abbr.)
47. Chemical symbol for gold
48. Chemical symbol for aluminum
49. Possess luminosity
50. Metal mixtures
53. Time Division Multiplexing
55. The ______ + 93 Across + of + 70 Down, the world's first true representative republic (not a democracy)*
58. Heatsink feature
60. Semiconductor and calculator company (abbr.)
61. Original Equipment Manufacturer (abbr.)
62. Test equipment (abbr.)
63. Metric system (abbr.)
65. Chemical symbol for rubidium
66. 16 Across + _______, signer of the Declaration of Independence - in large letters so King George could see it without his glasses*
69. Device attached to an antenna mast which rotates it so that the antenna can point in different directions
72. ampere-hour (abbr.)
73. Modulation type (abbr.)
74. Yard (abbr.)
75. Sound frequency in the human hearing range (abbr.)
76. Chemical symbol for nickel
77. Unit of magnetic flux(abbr.)
78. Illumination device
79. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)
81. Swap ____, a Ham's flea market
82. Cyanide (abbr.)
83. Unit of length (abbr.)
85. Read-only (abbr.)
86. Front edge of a wing (abbr.)
87. Unit of time (abbr.)
89. Stock symbol for Boeing
90. Chemical symbol for magnesium
91. Plural of locus
93. The 55 Across + ______ + of + 70 Down, the world's first true representative republic (not a democracy)*
95. PC Card - with 68 pin interface
98. 12 inches (pl.)
100. Analog-to-Digital (abbr.)
101. Finite Element Analysis (abbr.)
102. Ethoxyethane
104. Effective frontal area presented to a microwave interrogation system (abbr.)
105. Electromagnetic (abbr.)
106. Type of logic gate
108. Time division duplex (abbr.)
110. Powers pneumatic devices
112. Amateur radio operating mode for sharing real-time video (abbr.)
114. The cell band above DCN
116. Summer
118. Facsimile
120. Computer monitor resolution measure (abbr.)
121. He developed an alphabet composed of dots and dashes
124. Chemical symbol for erbium
126. Coefficient of temperature (abbr.)
127. Semiconductor and calculator company (abbr.)
129. One port of an amplifier
131. The ______ + 93 Across + of + 70 Down, the world's first true representative republic (not a democracy)*
137. Experimenter in electricity, a clock maker, lawyer, and a signer of the Declaration of Independence (2 wds.)*
142. Stock symbol for Advanced Micro Devices
143. Automatic network analyzer (abbr.)
144. Add two or more inputs
145. ___/IP scheme for networked connectivity
146. Stock symbol for Raytheon
147. Unit of frequency (archaic, abbr.)
148. A keyboard key
150. Decimeter (abbr.)
151. Chemical symbol for antimony
153. Ticker symbol for Analog Devices
155. Chemical symbol for copper
157. Morse Code for "from"
158. Chemical symbol for radium
160. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
162. 10E1 numerical prefix
164. Type of rechargeable battery (abbr., pl.)
165. Circuit containing a mixture of technologies (pl.)
166. Ratio of a mechanical drawing
1. He flew a kite with a key in a Leyden jar, and signed the Declaration of Independence* (2 wds.)*
2. Application Specific Integrated Circuit (abbr.)
3. Radio term for "Will Comply"
4. World's first satellite navigation system (abbr.)
5. The shortest-duration modulation state in a spread spectrum system
6. RF, analog, digital, and optical test equipment vendor
7. The + 131 Across + of + ____________, America's founding document*
8. High temperature substrate
9. Electric enclosure standard organization (abbr.)
11. Automatic repeat request used in AMTOR (abbr.)
12. Mr. Ohm's first name
13. CB slang for CB radio or antenna
14. USA's first president (2 wds.)*
23. Control and monitoring board
24. Unit of length (abbr.)
27. Filter type that blocks frequencies in a specified band (abbr.)
28. Point of rotation
32. Last stage in a transmitter (abbr.)
33. Chemical symbol for lead
34. Switch position
35. Chemical symbol for neon
37. Logarithmic ratio (abbr.)
40. Early programming language
42. The sun's most distant <former>planet
44. Chemical symbol for thallium
46. Chemical symbol for tantalum
49. Chemical symbol for gadolinium
51. Termination
52. Elemental compound used for microwave frequency reference oscillators (abbr.)
53. Part of a FOR loop
54. Unit of length (abbr.)
56. On-the-air meeting of hams at a set time, day and radio frequency
57. Electronic Variable Optical Attenuator (abbr.)
59. Big Blue
64. Gallium nitride chemical symbol
66. Circuit containing a mixture of technologies
67. Kept track of events
68. 1,000 seconds (abbr.)
69. Type of flip-flop
70. The 55 Across + 93 Across + of + _______, the world's first true representative republic (not a democracy)*
71. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
79. Third largest asteroid
80. _____ conductor
84. Chemical symbol for molybdenum
86. Mr. de Forest's first name
88. Special diode type that can be switched (abbr.)
90. Akin to an EE, CE, AE, etc.
92. Plug-in for computer bus
93. Parameter that is a figure of merit for receiver performance in presence of multiple signals (abbr.)
94. A common battery cell size
96. Chemical symbol for chromium
97. Material testing organization (abbr.)
99. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
103. The "H" in UHF
107. Mathematical table whose entries come from a fixed finite set of symbols (abbr.)
108. Prefix meaning ground or earth
109. Stock symbol for National Instruments
111. Started as HPIB
113. Telephony over computer networks
115. European equivalent to the U.L.
117. Keyboard key
119. Crystal oscillator (abbr.)
120. Permeability-tuned oscillator (abbr.)
122. Rádio Nacional de Angola (abbr.)
123. Samuel + _____, signer of the Declaration of Independence*
125. Prefix used on many MIL-SPEC components
128. Error checking scheme (abbr.)
130. The evening star
132. Science of assuring operation amid dense EM background noise (abbr.)
133. Chemical symbol for cadmium
134. Radio Amateur Civil Emergency Service (abbr.)
135. Chemical symbol for tantalum
136. Stock symbol for National Semiconductor
137. Common average used for sinewaves (abbr.)
138. Radio signals from the cosmos (abbr.)
139. Attenuator topology (pl.)
140. Infrared (abbr.)
141. Negative temperature coefficient (abbr.)
149. Synchronous Digital Hierarchy
150. 24 hours
152. Digital pattern coding type (abbr.)
154. Type of data conversion device (abbr.)
156. Schema for computer or device presentation to the operator (abbr.)
158. Chemical symbol for rhodium
159. Chemical symbol for praseodymium
161. Filter type that blocks frequencies in a specified band (abbr.)
163. Electrical safety organization (abbr.)

See solution below

Independence Day Theme Crossword Solution for July 4th, 2022 - RF Cafe

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.

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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 25

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December 11

December 4

November 27

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October 2

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