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RF Cafe Engineering & Science Crossword Puzzle
April 7, 2019

Since 2000, 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

RF Cafe Engineering & Science Crossword Puzzle April 7, 2019

ACROSS DOWN
1. Mathematical calculation of RF component string (2 wds.)
12. One port on a BJT
14. Microwaves & RF magazine (abbr.)
15. Chemical symbol for erbium
16. Test point (abbr.)
18. Data transmission pathways
19. Field Programmable Gate Array (abbr.)
20. Deutsche Industrie Normenausschuss
22. On-the-air meeting of hams at a set time, day and radio frequency
23. Scheme to maintain proper frequency (abbr.)
24. Meet all test requirements
26. Exalted-Carrier Single Sideband (abbr.)
28. Offset Quadrature Phase Shift Keying
30. Lowest power level capable of being demodulated (abbr.)
33. Original Equipment Manufacturer (abbr.)
34. Chemical symbol for mercury
36. 10E-2 numerical prefix
38. ______ Marietta, or Lockheed ______
40. Once around a circuit
41. Similar to a laser, but at lower frequencies
42. Ticker symbol for Analog Devices
44. File name extension for an ASCII file
45. Things in a bill of material
47. Type of data conversion device (abbr.)
48. The "A" in DAC
50. Reflected radar or sonar signal (pl.)
51. Chemical symbol for neodymium
52. Ham's code for "Shall I decrease power?"
54. World's largest yearly convention of gadget and device manufacturers (abbr.)
55. Generated an official engineering change document
58. Type of vector product
60. Multichannel multipoint distribution service
61. Wire diameter unit (abbr.)
63. Direct Digital Synthesis (abbr.)
65. Temporary Engineering Change document (abbr.)
66. Counter ElectroMotive Force (abbr.)
68. Create a power supply output w/o a ground reference
70. Chemical symbol for xenon
71. Part of a FOR loop
72. American space agency (abbr.)
73. Hangs the program
75. Founder of the ARRL (3 wds.)
1. Complex Instruction Set Computer
2. Automated Test Equipment (abbr.)
3. Official Space Shuttle designation (abbr.)
4. European equivalent to the U.L.
5. Chemical symbol for argon
6. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
7. Conductor size unit (abbr.)
8. Gun safety and education organization (abbr.)
9. Sound frequency in the human hearing range (abbr.)
10. One of four lines used in ferrite core memories
11. Infrared (abbr.)
12. Online auction site
13. Maximum Usable Frequency
16. Test equipment (abbr.)
17. Chemical symbol for platinum
19. Modem encoding method (abbr.)
20. Morse Code for "from"
21. Small representative graphic
22. Chemical symbol for niobium
24. Computer monitor resoultion measure (abbr.)
25. Chemical symbol for arsenic
27. Type of component package (abbr.)
28. Exponent that returns the original number
29. Ham's code for "What is the correct time?"
30. 1/000 of an amp (abbr.)
31. Aerodynamic opposition to thrust
32. Official Space Shuttle designation (abbr.)
34. Amateur radio operators
35. World's first satellite navigation system (abbr.)
36. Computer Assisted Design and Development
37. A keyboard key
38. 12.36 us is called a radar ____
39. Multifunctional silicon devices (abbr.)
40. Constellation : The lion
41. ELI the ICE ___
42. Army-Navy specification prefix
43. Type of data conversion device (abbr.)
45. Current-voltage phase mnemonic
46. Amplifier linearity specification (abbr.)
48. Nearest and furthest points to the center of gravitational attraction for a body in orbit
49. Unix, Linux or Windows (abbr.)
50. Electrical overstress (abbr.)
52. Type of matrix barcode used with laser scanning(abbr.)
53. Device attached to an antenna mast which rotates it so that the antenna can point in different directions
55. Electromotive force (abbr.)
56. Chemical symbol for cadmium
57. Universal Mobile Telecommunications System
58. Chemical symbol for cesium
59. Chemical symbol for scandium
60. Million multiply accumulate operations (abbr.)
61. Megohm (abbr.)
62. Software engineering tool (abbr.)
63. Ham abbreviation for "distant station"
64. Morse Code for "from"
66. Software engineering tool (abbr.)
67. Resistive component of a capacitor's lumped element model (abbr.)
68. Facsimile
69. Family of ICs with a certain component density level (abbr.)
71. Semiconductor and calculator company (abbr.)
72. Chemical symbol for neptunium
73. Centimeter (abbr.)
74. Chemical symbol for radium 

See solution below

 

2019 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.

2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | Sudoku

 

June 16

June 9

June 2

May 26

May 19

May 12

May 5

April 28

April 21

April 14

April 7

March 31

March 24

March 17

March 10

March 3

February 24

February 17

February 10

February 3

January 27

January 20

January 13

January 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF Cafe Engineering & Science Crossword Solution April 7, 2019 

ERZIA (RF amplifiers, wireless, communications) - RF Cafe Buy a Scope Get a Probe (Rohde & Schwarz) - RF Cafe
Rohde & Schwarz USA (Signal Generator Pocket Guide 2) - RF Cafe Axiom Test Equipment - RF Cafe
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    BSEE - KB3UON

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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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