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RF Cafe Engineering & Science Crossword Puzzle
May 17, 2020

Beginning in the year 2000 and running through today, May 17, 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 17, 2020 - RF Cafe

<click for full size to print>

ACROSS DOWN
1. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
4. Generally, the region of the radio spectrum above 1 GHz (pl.)
12. Abbreviation for acknowledge (also a common word used by Bill the Cat)
15. Amateur Radio Association (abbr.)
16. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
17. Digital Enhanced Cordless Telephone
18. Be behind in phase
19. Greek letter used for resistance (pl.)
20. With 25 Across, part of this website's title
22. Metal or plastic rod that connects a potentiometer wiper to a knob (pl.)
23. Logarithmic ratio (abbr.)
24. Chemical symbol for silver
25. With 20 Across, part of this website's title
27. Type of logic gate
28. Type of current flow (abbr.)
29. User Datagram Protocol
31. Enhanced Graphics Adapter
33. Akin to EEs, CEs, AEs, etc. (abbr., pl.)
35. Electronics Industry Association (abbr.)
36. Mr. Gauss' first name
38. What do mathematicians call an angle having more than 180 degrees but less than 360
41. Lacing ____, for bundling cables
42. First-in, first-out, abbr.
44. Chemical symbol for strontium
45. Programmable logic device type (abbr., pl.)
47. Wavelength division multiplexing (abbr.)
48. Electric enclosure standard organization (abbr.)
49. An ellipse has two of them
50. Type of data conversion device (abbr.)
51. Light ray
52. Switch position
54. Solid state power amplifier (abbr.)
56. 10^12 bits per second (abbr.)
58. Integrate data onto a carrier wave
61. Solid state power amplifier (abbr.)
63. End of Life (abbr.)
64. Network file transfer protocol (abbr.)
65. Half of DSB
67. Programmable logic device (abbr.)
68. Chemical symbol for copper
69. 1e-6 mA
70. Mate to a bolt (pl.)
73. Chemical symbol for ruthenium
75. Chemical symbol for dysprosium
76. Diac that can be turned back off (pl.)
78. Front edge of a wing (abbr.)
79. Unit of capacitance (pl.)
80. Charged particle
81. Counter ElectroMotive Force (abbr.)
83. Positive emitter-coupled logic (abbr.)
84. Electronics Industry Association (abbr.)
86. Type of logic gate (pl.)
87. Decreases in magnitude
88. Type of high speed Internet service (abbr.)
1. Stock symbol for Boeing
2. A receiver circuit consisting of a beat frequency oscillator and additional circuitry for enhanced reception of SSB signals (2 wds.)
3. Greek letter used for wavelength
4. 1000000 prefix
5. A false signal produced in a superheterodyne receiver’s circuitry
6. Hz
7. Type of flip-flop
8. Analog-to-Digital (abbr.)
9. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.)
10. Reflected radar or sonar signal (pl.)
11. Network configuration type
12. Brightest star in the Aquila constellation
13. Mathematical calculation of RF component string. as done by the renown RF Cafe spreadsheet Workbook using these two words
14. Mass unit (abbr.)
20. Chemical symbol for radium
21. Small unit of capacitance (abbr.)
25. Software engineering tool (abbr.)
26. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
30. Rate of a radar transmitter's output waveform (abbr.)
32. Rubber or plastic donut-shaped insert for protecting pass-through wires
34. Lays bare, such as a wire
35. Electrical overstress (abbr.)
37. Geometric entity with only length (pl.)
39. Start frequency (abbr.)
40. Chemical symbol for lawrencium
41. Abruptly limit amplitude of a signal (pl.)
43. Finite Element Analysis (abbr.)
46. Automatic Calibration System (abbr.)
51. Method of sending high-speed digital signals on electric distribution wires, a Ham's nemesis (abbr.)
52. Amateur radio abbreviation for the Oceania region (abbr.)
53. Chemical symbol for nobelium
55. MS's server-side script engine for dynamically-generated web pages (abbr.)
57. Potentiometer manufacturer in Riverside, CA
59. Silicon transistor type (abbr.)
60. Satellite TV system
62. Added an attenuator
64. Crystal face
66. Securing device
69. Forerunner to NASA
71. Electrical safety organization (abbr.)
72. Test equipment (abbr.)
74. Internet addresses
77. Surface Mount Technology
79. Semiconductor device type (abbr.)
80. Galilean moon
82. Chemical symbol for iron
83. Last stage in a transmitter (abbr.)
85. Chemical symbol for aluminum

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.

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Engineering & Science Crossword Solution May 17, 2020 - RF Cafe

Anatech Electronics (RF Filters) - RF Cafe
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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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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