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RF Cafe Engineering & Science Crossword Puzzle
May 10, 2020

Since 2000 - that's 20 years - I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you.

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs or works crosswords.


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Engineering & Science Crossword Puzzle May 10, 2020 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. The "C" in DAC
7. Lowest power level capable of being demodulated (abbr.)
10. Ham's code for "Does my frequency vary?"
13. _______ strength - measure of resistance from breaking
18. Filter type that blocks frequencies in a specified band (abbr.)
19. Type of logic gate
20. Fast Fourier transform (abbr.)
21. Chemical symbol for holmium
22. Unix, Linux or Windows (abbr.)
23. Unit of time (abbr.)
24. 10E1 numerical prefix (pl.)
27. Maximum Usable Frequency
29. Chemical element abbreviated Sn
31. Stock symbol for Raytheon
34. S12 or S21 (abbr.)
35. Peak envelope power (abbr.)
37. ___-back transformer
39. Sent a ray of light
41. Stock symbol for Harris Communications
43. Galilean moon
44. _____&Schwarz
46. U.K. equivalent of the IEEE
48. Chemical symbol for thallium
49. Chemical symbol for neptunium
50. Network department (abbr.)
52. Image file format name extension, (pl.)
53. Unit of current
55. Describes when a synchronous motor loses phase lock
58. Chemical symbol for platinum
59. Modulation type (abbr.)
61. Common shorthand reference for a capacitor (pl.)
64. U.S. Spectrum allocation agency
66. Intermodulation distortion (abbr.)
67. First name of a British scientist of falling apple fame
69. Radio term for indicating the end of a transmission segment
70. Morse Code for "from"
71. Chemical symbol for rubidium
73. Wheel attachment point
74. Describes an open fuse
76. MS's server-side script engine for dynamically-generated web pages (abbr.)
78. Negative temperature coefficient (abbr.)
80. Image file format name extension
81. Start frequency (abbr.)
82. Network department (abbr.)
83. Move in a raster pattern
85. Official Space Shuttle designation (abbr.)
87. Alternative name for Beta Persei
88. Radio signals from the cosmos (abbr.)
90. Type of current flow (abbr.)
91. Unit of capacitance (abbr.)
93. U.S. military organization (abbr.)
95. The "S" in SOIC
97. Switch position
99. 30 MHz to 300 MHz
101. Method for mechanically connecting component leads in preparation for soldering
103. Effective frontal area presented to a microwave interrogation system (abbr.)
104. Readability, Signal, and Tone (QoS report type)
105. Part of a FOR loop
106. Stock symbol for National Semiconductor
108. Heterojunction Bipolar Transistor
109. Angular speed unit
112. Precision approach radar (abbr.)
113. Internet protocol (abbr.)
115. Chemical symbol for lanthanum
116. Chemical symbol for radon
118. Gallium nitride chemical symbol
120. Gun safety and education organization (abbr.)
122. Band between RF and BB
123. Its chemical symbol is Li
124. Type of data conversion device (abbr.)
125. Low Noise Amplifier (abbr.)
126. He determined the constant equal to 1.3806503 × 10E-23 m2 kg s-2 K-1
1. Unlicensed radio type for personal and business use (abbr., pl.)
2. Type of logic gate
3. Relating to any picture or visual information, from the Latin word meaning "I see"
4. Mate to a TX
5. Uppermost surface
6. Chemical symbol for erbium
7. 300 kHz to 3 MHz
8. Design for Manufacturability (abbr.)
9. A length of transmission line that is open or shorted at one end
11. Chemical symbol for rhodium
12. International phonetic alphabet letter "H"
13. Unit of weight
14. Chemical symbol for einsteinium
15. Network configuration type
16. Filter type that blocks upper frequencies (abbr.)
17. Resistive component of a capacitor's lumped element model (abbr.)
24. Effect caused by a nonlinearity
25. Chemical symbol for aluminum
26. 3-phase transformer configurations
28. Finite Element Analysis (abbr.)
30. Opposite of O.D.
32. Semiconductor and calculator company (abbr.)
33. Minimum noise power level (2 wds.)
35. Personal Handy Phone System (abbr.)
36. BlackBerry or Palm for example (abbr.)
38. Chemical symbol for lithium
40. Microwave Theory and Techniques Society (abbr.)
41. Filter type that blocks lower frequencies (abbr.)
42. Chemical symbol for silicon
44. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
45. Electromotive force (abbr.)
47. Type of high-tech data gathering system (abbr.)
49. Home state of Los Alamos lab (abbr.)
51. Use the wheel on a mouse
54. Substrate for mounting component (abbr., pl.)
56. Intermodulation (abbr.)
57. BlackBerry or Jordana for example (abbr., pl.)
58. Attenuator configuration (hyph.)
59. Advanced Communication Technologies and Services (abbr.)
60. Digital voltmeter (abbr.)
62. Chemical symbol for palladium
63. Digital transmission figure of merit (abbr.)
65. Chemical symbol for chlorine
68. Army-Navy specification prefix
72. Chemical symbol for bismuth
75. Refers to the IEEE802.11 networks (abbr.)
77. Chemical symbol for scandium
79. A common RS-232 serial bus command (abbr.)
81. A BPF specification (abbr.)
84. Logical gate type (pl.)
86. Specialized mobile radio (abbr.)
87. ___-AZIMUTH telescope mount
89. Boob tube (abbr.)
90. Sound frequency in the human hearing range (abbr.)
91. The "U" in UHF
92. Special diode type that can be switched (abbr.)
94. Type of current
96. Provider of services for telecommunications systems in Switzerland
98. Unit of time (abbr.)
100. Type of cryptographic algorithm that takes a string and converts it to a numeric code
101. Unlicensed FCC Part 95 realm for personal and business radio use (abbr.)
102. Control language used by Hewlett Packard printers, abbr.
105. Chemical symbol for tantalum
107. 1/000 of an inch
108. Amateur radio enthusiast
110. ELI the ICE ___
111. Ham's code for "Are you busy?"
112. Circuit for firing a radar magnetron (abbr.)
114. Ratio of circumference to diameter
115. Chemical symbol for lutetium
117. Chemical symbol for neodymium
119. 1e-6 mA
120. Chemical symbol for nobelium
121. PC follower
122. One port of an amplifier

See solution below

 

2020 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.

2020 | 2019 | 2018 | 2017 | 2016 | 2015 | Sudoku

December 27

December 20

December 13

December 6

November 29

November 22

November 15

November 8

November 1

October 25

October 18

October 11

October 4

September 27

September 20

September 13

September 6 

August 30

August 23

August 16

August 9

August 2

July 26

July 19

July 12

July 5

June 28

June 21

June 14

June 7

May 31

May 24

May 17

May 10

May 3

April 26

April 19

April 12

April 5

March 29

March 22

March 15

March 8

March 1

February 23

February 16

February 9

February 2

January 26

January 19

January 12

January 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engineering & Science Crossword Solution May 10, 2020 - RF Cafe

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