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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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RF Cafe Radio & Science Crossword Puzzle
May 24, 2020

Beginning in the year 2000 and running through today, May 24, 2020, I have been creating weekly custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. 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, familiar company names 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 24, 2020 - RF Cafe

<click for full size to print>

1. Vacuum tube type for a high power, high frequency transmitter
6. Sets a steady-state voltage reference
9. Logarithmic unit of power (abbr.)
13. Opposite of O.D.
14. Chemical symbol for argon
15. Chemical symbol for nickel
16. Unit of time (abbr.)
17. Online auction site
18. Electromagnetic (abbr.)
20. A type of capacitance or inductance
25. Automatic Testing, Evaluation & Reporting (abbr.)
27. Chemical symbol for chlorine
28. One component of a complex number (abbr.)
29. Metric system (abbr.)
31. Personal Handy Phone System (abbr.)
32. Low- to mid- frequency connectors
34. What kind of a number is divisible only by itself and 1
36. Unit of inductance (abbr.)
39. Analog-to-Digital (abbr.)
40. A BPF specification (abbr.)
41. A measure of receiver quality (abbr.)
43. State _______ - A type of drawing used in computer science and related fields to describe the behavior of systems (pl.)
45. Type of high frequency diode (abbr.)
46. Chemical symbol for neon
47. Unit of inductance (abbr.)
48. 1/000 of an amp (abbr.)
53. Apply more signal than a circuit can handle
55. Equalizer (abbr.)
57. Merrill ________ - popular author on radar system amplifier design
58. Chemical symbol for iron
59. Polymer having the elastic properties of natural rubber
60. Chemical symbol for silicon
62. Part of this website's title
63. Capacitor dielectric type (pl.)
67. One port of an amplifier
69. Part of a gyroscope that facilitates free movement of the reference sphere (pl.)
73. Chemical symbol for lithium
74. Television (2 wds.)
76. Amateur radio abbreviation for the Oceania region (abbr.)
77. Chemical symbol for lanthanum
78. Centimeter (abbr.)
79. International phonetic alphabet letter "S"
81. In a coordinate system, what is the name of the vertical coordinate
85. Chemical symbol for thallium
86. Chemical symbol for erbium
87. Opposite of a LO
89. Unit of time (abbr.)
90. Filter type with high rate of out-of-band attenuation (aka 'elliptic')
92. Electric enclosure standard organization (abbr.)
93. Current-voltage phase mnemonic
95. Computer monitor resolution measure (abbr.)
97. Last stage in a transmitter (abbr.)
98. Electronics manufacturer with "meatball" logo
99. Time Division Multiple Access
100. Imperfections in a crystal lattice
102. Chemical symbol for plutonium
103. Unit of energy (pl.)
105. Read-only (abbr.)
106. Chemical symbol for tin
107. Type of current
108. Boob tube (abbr.)
110. BlackBerry or Palm for example (abbr.)
111. Luminous atmospheric phenomenon
112. Reduced in amplitude
2. Opposite of a LO
3. 36 in. (abbr., pl.)
4. Straight line emanating from a point source
5. Type of logic gate
6. Steady-state voltage reference
7. Signal-to-noise ratio (abbr.)
8. Chemical symbol for einsteinium
9. Logarithmic ratio (abbr.)
10. No insulation
11. 3-phase transformer configuration
12. Devices for interpreting encoded data
17. Type of high-tech data gathering system (abbr.)
19. Chemical symbol for magnesium
21. Test point (abbr.)
22. Moon of Saturn discovered in 1672
23. Chemical symbol for arsenic
24. Low Noise Amplifier (abbr.)
26. ECM response
27. Chemical symbol for chromium
30. Miniature threaded RF connector
33. Chemical symbol for cadmium
34. Surfaces
35. 300 kHz to 3 MHz
37. Chemical symbol for mercury
38. Workplace safety group (abbr.)
40. Electronic component for passing certain frequencies and blocking others
42. Unit of magnetic flux
44. Frequency-shift-keying with more than two states represented by different frequency deviations (abbr.)
48. Maximum Usable Frequency
49. Large radio telescope in Puerto Rico
50. Type of data storage IC
51. Galilean moon
52. Chemical symbol for radon
54. 30 Hz to 300 Hz
56. Unit of liquid measure (abbr.)
60. Miniature RF connector
61. A line on a map which joins points of equal pressure
63. PCB interconnect
64. Nordic Mobile Telephone
65. Chemical symbol for aluminum
66. Described by a 1st-order equation
68. Negative temperature coefficient (abbr.)
69. Equipment
70. Chemical symbol for molybdenum
71. Army-Navy specification prefix
72. Its chemical symbol is Se
75. Open a fuse
79. Threaded tuning rod in a coil (pl.)
80. A disk operation
82. 10E1 numerical prefix
83. Greek letter used for frequency
84. MS's server-side script engine for dynamically-generated web pages (abbr.)
85. Chemical symbol for tantalum
87. Chemical symbol for helium
88. Intermodulation distortion (abbr.)
90. Plug-in for computer bus
91. BS__ - the degree held by many RF Cafe visitors
92. American space agency (abbr.)
93. S12 or S21 (abbr.)
94. Modern battlefield technique (abbr.)
96. Min-to-max voltage of a waveform (abbr.)
97. Peak envelope power (abbr.)
99. Telex-Over-Radio (abbr.)
100. U.S. Spectrum allocation agency
101. Official Space Shuttle designation (abbr.)
104. Chemical symbol for gallium
105. Chemical symbol for ruthenium
107. Morse Code for "from"
109. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)

See solution below


2020 Crossword Puzzle 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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