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RF Cafe Engineering & Science Crossword Puzzle
June 2, 2019

This week's crossword puzzle contains the full name of our industry's big show in Boston (*). Since 2000, I have been creating custom engineering- and science-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

Engineering & Science Crossword PuzzleJune 2, 2019 - RF Cafe

<click for full size to print>

1. 1st part of this week's big RF industry event *
9. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
13. Amateur Radio Association (abbr.)
14. Chemical symbol for ruthenium
15. Coordinated Universal Time (abbr.)
17. Below ELF
19. Radio signals from the cosmos (abbr.)
22. Part of a FOR loop
24. Capacitor manufacturer
26. Chemical symbol for nickel
27. 2nd part of this week's big RF industry event *
30. Type of component package (abbr.)
31. Document package submitted in attempt to win a job
33. Chemical symbol for californium
34. Current-voltage phase mnemonic
35. Filter type that blocks upper frequencies (abbr.)
36. Early predecessor to an online forum (abbr.)
40. Chemical symbol for scandium
41. Unit of frequency (archaic, abbr.)
43. 3rd part of this week's big RF industry event *
44. Unit of energy
45. Device for matching antenna impedance to transmitter impedance (pl.)
48. Ratio of circumference to diameter
50. Chemical symbol for antimony
51. Min-to-max voltage of a waveform (abbr.)
52. Chemical symbol for molybdenum
54. Chemical symbol for lithium
56. Chemical symbol for krypton
58. Filter type that blocks frequencies in a specified band (abbr.)
60. Switch position
62. 4th part of this week's big RF industry event *
64. A common RS-232 serial bus command (abbr.)
66. Filter with more than one frequency band going from separate ports to a common port (pl.)
70. Chemical symbol for selenium
71. Internet protocol (abbr.)
72. Elemental compound used for microwave frequency reference oscillators (abbr.)
73. Chemical symbol for aluminum
76. Archaic abbreviation for picowatt
77. Chemical symbol for einsteinium
81. 5th and last part of this week's big RF industry event *
84. Chemical symbol for arsenic
86. "The butthead astronomer" (dubbed by Apple dev team)
89. Chemical symbol for gadolinium
90. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
91. Chemical symbol for platinum
92. Unit of time (abbr.)
93. Ticker symbol for Analog Devices
95. Personal Digital Cellular
97. Analog-to-Digital (abbr.)
100. Powers pneumatic devices
103. Hydrogen, argon, neon, xenon, etc.
104. DC (2 wds.)
1. Things in a bill of material
2. Chemical symbol for tantalum
3. Chemical symbol for erbium
4. Its chemical symbol is Rn
5. Chemical symbol for silver
6. Type of logic gate
7. Mate to a bolt (pl.)
8. Chemical symbol for lutetium
9. An abbreviation for "receiver"
10. Chemical symbol for cesium
11. Alternative name for Beta Persei
12. Small unit of capacitance (abbr.)
16. Wrapped plastic insulation around an electrical joint
18. Software storage unit (pl.)
20. Semiconductor and calculator company (abbr.)
21. Boob tube (abbr.)
23. Greek letter
25. Type of logic gate
26. 1e-6 mA
28. PC follower
29. ECM response
32. Unintended frequency product from a mixer
36. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm
37. Graphics file extension
38. A sudden and temporary increase in voltage, current, or power
39. 2-way conversation, Ham term
40. Adds two or more inputs
41. Akin to an EE, CE, AE, etc.
42. Silicon transistor type
43. Shortwave listener (abbr.)
45. Chemical symbol for terbium
46. 2-part adhesive
47. Type of component package (abbr.)
49. Change out a plug-in module while power is still applied (2 wds.)
50. Propagation by means of ionospheric reflection
53. Type of logic gate (pl.)
55. Network department (abbr.)
57. Rádio Nacional de Angola (abbr.)
58. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm
59. Programmable Logic Device (abbr.)
61. On-the-air meeting of hams at a set time, day and radio frequency
63. Wireless LAN
65. Chemical symbol for selenium
66. The "D" in CD
67. Read-only (abbr.)
68. International phonetic alphabet letter "T"
69. Tweaked a filter for the correct response
74. Has a positive phase wrt a reference
75. U.K. equivalent of the IEEE
78. Type of matrix barcode used with laser scanning(abbr.)
79. International phonetic alphabet letter "O"
80. Just entering the nonlinear region
82. Opposite of O.D.
83. Nuclear explosion byproduct harmful to electronic (abbr., pl.)
85. Network configuration type
87. Type of current flow (abbr.)
88. Chemical symbol for gold
93. A common battery cell size
94. Network department (abbr.)
96. Chemical symbol for cadmium
98. Morse Code for "from"
99. Unit of frequency (archaic, abbr.)
101. Infrared (abbr.)
102. One component of a complex number (abbr.)

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.

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