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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    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 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...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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AirplanesAndRockets.com

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>

ACROSS DOWN
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 Crossword Puzzle 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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