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    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
December 31, 2017

At least 10 clues with an asterisk (*) in this crossword puzzle are pulled from this past week's (12/25 - 12/29) "Tech Industry Headlines" column on the RF Cafe homepage. For the sake of all the avid cruciverbalists amongst us, each week I create a new technology-themed crossword puzzle using only words related to engineering, science, mathematics, chemistry, physics, astronomy, etc. Enjoy!

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs 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 Crossword Puzzle w/Weekly Headlines December 31, 2017

1. 2 x SSB
4. Another Radio _______ Joins ISS Crew *
8. Abbreviation for "power"
11. Unit of current
12. Country of RF Cafe's residency
13. The "L" in VLF
15. A common battery cell size
16. Radio Direction Finding (abbr.)
17. Max or min voltage of a waveform (abbr.)
18. Global System for Mobile Communications (abbr.)
21. Unit of inductance (abbr.)
22. Display type
23. Equivalent of Windows on Apple products
25. _____ Being Sued for 'Purposefully Slowing Down Older iPhone Models' *
26. Unit of apparent power (abbr.)
27. Chemical symbol for helium
28. International phonetic alphabet letter "T"
29. Type of flip-flop
31. Modulation technique that varies the width of pulses in a train (abbr.)
33. Front edge of a wing (abbr.)
34. Indium phosphide
37. Chemical symbol for einsteinium
39. A common battery cell size
40. Relative power level unit (abbr.)
43. Small DIP package (abbr.)
45. Its chemical symbol is Nb
46. Length times width
47. Sharp bends in I-V curves
48. Its chemical symbol is B
49. 1's and 0's
50. Transferred charge w/o physical contact
54. Boolean expression (pl.)
56. Last stage in transmitter (abbr., pl.)
57. Home state of Los Alamos lab (abbr.)
58. 1/000 of an amp (abbr.)
59. A keyboard key
60. Chemical symbol for silver
61. Early predecessor to an online forum (abbr.)
63. Chemical symbol for antimony
65. Diac that can be turned back off
66. Chemical symbol for helium
67. 1.602E-19 Joules
69. Consequence of under sampling
71. What kind of a number is divisible only by itself and 1
73. Specialized mobile radio (abbr.)
76. Time delay (abbr.)
78. Ground fault interrupter (abbr.)
79. Chemical symbol for mendelevium
80. Automatic network analyzer (abbr.)
82. Uppermost surface
83. Last statement in a BASIC program
85. Agilent's EE design software (abbr.)
86. Effective Radiated Power (abbr.)
87. Add two or more inputs
88. Northrop Grumman Wins $23.2M EW _______ Contract to Counter IEDs *
89. U.K. equivalent of the IEEE
1. _____ Takes Chip Route to 'Unhackable' Computers *
2. Electronic component package type (abbr.)
3. Filter type (abbr.)
4. A type of digital modulation (abbr.)
5. 1/000 of an amp (abbr.)
6. Electrical safety organization (abbr.)
7. Type of memory
8. Programmable logic device (abbr.)
9. Ham abbreviation indicating contacts with all major land masses
10. One of Oldest U.S. _____ Stations to Go Dark *
12. One cutoff frequency specification for a bandpass filter
14. Color 9
18. Analog Devices Announces 2017 ____ Revenue up 49% YoY *
19. Chemical symbol for scandium
20. Megohm (abbr.)
23. 1e3 uV
24. Chemical symbol for selenium
30. China Leads World in Remote _______ Technology *
32. One of the Ws in WWW
33. Greek letter used for wavelength (pl.)
34. Network department (abbr.)
35. Rumored _____ 9 Takes Aim at High-End Mobile Market *
36. Unit of liquid volume (pl.)
38. Chemical symbol for silicon
39. Chemical symbol for gold
40. FCC Penalizes Marketer of Ham-Band _____ Audio-Visual Transmitters *
41. Forms a resistor lead
42. Chemical symbol for calcium
44. World's largest yearly convention of gadget and device manufacturers (abbr.)
46. Amateur Radio Association (abbr.)
49. Filter type that blocks frequencies below and above a specified band (abbr.)
51. Home state of Los Alamos lab (abbr.)
52. Popular computer device interface (abbr.)
53. Electromagnetic (abbr.)
55. Chemical symbol for scandium
60. An angle that has less than 90 degrees
61. Connector vendor, now owned by FCI in St. Louis, Missouri
62. 2017 ____ Market Grows 20% *
64. VHF, UHF, ISM, for example
65. AT&T Files to Conduct 3.5 GHz _____ in Washington, D.C. *
66. Some __ Laptops Shipped with Hidden Keylogger *
68. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
70. Use a filter to assure the spectral content of transmitted signal
72. Band between RF and BB
74. Minutes of Use (abbr.)
75. Angular speed unit
77. The system than converts common website names to IP addresses (abbr.)
79. Lowest power level capable of being demodulated (abbr.)
80. Anatech Electronics Inc., (abbr.)
81. The design component of total product cost (abbr.)
84. Chemical symbol for dysprosium
85. Modulation type (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 December 31, 2017

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