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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 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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RF Cafe Engineering Crossword Puzzle w/Weekly Headlines
July 23, 2017

For the sake of avid cruciverbalists amongst us, each week I create a new crossword puzzle that has a theme related to engineering, mathematics, chemistry, physics, and other technical words. Clues in this puzzle with an asterisk (*) are pulled from this past week's (7/17 - 7/21) "Tech Industry Headlines" column on the RF Cafe homepage. Enjoy!

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

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines July 23, 2017

1. Chemical element abbreviated Sn
4. DOD Puts 'Foot on Gas Pedal' to Catch up on Electronic _______ *
8. Logic family (abbr.)
11. Original Equipment Manufacturer (abbr.)
12. Shortwave listener (abbr.)
13. The "B" in BER
15. Type of distribution, squared
16. Term used in soldering to achieve the condition that occurs when the metals being soldered are hot enough to melt the solder so it flows over the surface
17. Microsoft to Use __ White Spaces for Internet Access *
18. Describes the action of cleaving a crystal plane
21. Chemical symbol for argon
22. Modulation technique that varies the width of pulses in a train (abbr.)
23. A coherent monochrome light source
25. Flip-flop control input
26. Chemical symbol for erbium
27. Chemical symbol for cobalt
28. Log onto a hard drive
29. Electromagnetic (abbr.)
31. Synchronous Digital Hierarchy
33. Unit of time (abbr.)
34. Deutsche Industrie Normenausschuss
37. Opposite of O.D.
39. Chemical symbol for lutetium
40. Greek letter
43. Cellular Telecommunications Industry Association
45. Changing
46. He, along with Mr. Savart, developed a law that describes a magnetic field generated by an electric current
47. Exalted-Carrier Single Sideband (abbr.)
48. Software object reference name
49. Million multiply accumulate operations (abbr.)
50. Determine cause and effect
54. Move in a raster pattern
56. IC killer (abbr.)
57. Chemical symbol for neon
58. 1e-6 mA
59. Effective Radiated Power (abbr.)
60. Chemical symbol for mendelevium
61. Innovative Power Products, Holbrook, NY (abbr.)
63. Type of flip-flop
65. A sudden and temporary increase in voltage, current, or power
66. Chemical symbol for selenium
67. Filter type that blocks upper frequencies (abbr.)
69. Tall structure for antennas
71. Wireless phone regions
73. Test document for verifying proper function (abbr.)
76. A common battery cell size
78. Electrical overstress (abbr.)
79. Last stage in a transmitter (abbr.)
80. Unit of length equal to 5.5 yards
82. Positive voltage lead color
83. Display type
85. Wire diameter unit (abbr.)
86. Ground fault interrupter (abbr.)
87. RF connector type
88. Semiconductor Content in Electronic _______ Forecast to Set New Record in 2017 *
89. Beat frequency oscillator (abbr.)
1. _____ Companies Likely Enjoyed Solid - If Not Spectacular - Q2 *
2. U.K. equivalent of the IEEE
3. Nordic Mobile Telephone
4. National Bureau of Standards radio station (time signals)
5. Chemical symbol for aluminum
6. Chemical symbol for rubidium
7. Electronics Industry Association (abbr.)
8. ___/IP scheme for networked connectivity
9. Code for a type of electrical wire insulation (abbr.)
10. Is There a _____ to How Fast the Internet Can Become? *
12. A "0" or a "1," for instance
14. Adjusts
18. Europeans Will Only Buy Electric ____ by 2035 *
19. Unit of time (abbr.)
20. ____ Companies Push Offshore Cash Pile to Record High *
23. Front edge of a wing (abbr.)
24. Read-only (abbr.)
30. FCC Eyes _______ Spectrum Between 3.7 and 24 GHz *
32. Direct Memory Access (abbr.)
33. Breakthrough in _______ Threat Detection Science *
34. Type of current
35. Things in a bill of material
36. Rechargeable battery type (abbr.)
38. Chemical symbol for dysprosium
39. Chemical symbol for lithium
40. _____-wise linear
41. The _____ Eclipse QSO Party *
42. Network department (abbr.)
44. File name extension for an ASCII file
46. Early predecessor to an online forum (abbr.)
49. Akin to an EE, CE, AE, etc.
51. Chemical symbol for neon
52. Once around a circuit
53. Chemical symbol for zinc
55. Chemical symbol for neptunium
60. Steel, brass, aluminum, etc.
61. The Difference Between ____ 802.11ah and 802.11af in the IoT *
62. Oscillator type that is referenced to an external source (abbr., pl.)
64. The gaseous state of water
65. _____ Atomic Cloud Solves Heisenberg's Observation Problem *
66. Chemical symbol for scandium
68. Unit of time (abbr.)
70. Amateur _____ Parity Act Introduced in U.S. Senate *
72. Local Oscillator (abbr.)
74. Base of the decimal number system
75. Personal Digital Cellular
77. Automatic Calibration System (abbr.)
79. Cellphone band directly above DCS
80. Computer monitor cable type (abbr.)
81. Switch position
84. Chemical symbol for dysprosium
85. Unit of length (abbr.)

See solution below


2017 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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RF Cafe Engineering Crossword Solution w/Weekly Headlines July 23, 2017

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