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RF Cafe Engineering Crossword Puzzle w/Weekly Headlines
December 24, 2017

Along with the standard fare of all tech-related words and clues, a holiday message to the RF Cafe faithful ;-) is integrated into this week's crossword puzzle. Have a Merry Christmas and a Happy New Year!

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 Christmas 2017

ACROSS DOWN
1. A BPF specification (abbr.)

3. Type of power supply

9. Chemical symbol for silicon

11. ____ + 15 Down + 17 Across (second part of seasonal message from RF Cafe)

12. Unintentionally changes the oscillator frequency

13. Anatech Electronics Inc., (abbr.)

16. The system than converts common website names to IP addresses (abbr.)

17. 11 Across + 15 Down + ____ (second part of seasonal message from RF Cafe)

18. Term for asymmetry of a statistical distribution

20. Chemical symbol for argon

21. 1,000 seconds (abbr.)

23. Modulation technique that varies the width of pulses in a train (abbr.)

25. Akin to an EE, CE, AE, etc.

26. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)

27. High-speed circuit-switched data (abbr.)

29. Alloy of iron and low percentages of carbon, mangenese, chromium, etc.

31. Orthogonal frequency-division multiplexing (abbr.)

34. ____ + 79 Across (first part of seasonal message from RF Cafe)

36. Type of spread spectrum that does not use frequency hopping (abbr.)

38. Ticker symbol for Analog Devices

39. Broadband Signal Intrusion (abbr.)

40. Lubricant

41. Chemical symbol for terbium

42. Chemical symbol for beryllium

43. Chemical symbol for xenon

45. Chemical symbol for francium

47. Chemical symbol for helium

48. Electromagnetic (abbr.)

50. Nuclear explosion byproduct harmful to electronic (abbr., pl.)

52. Cell phone manufacturer

54. Miniature threaded RF connector (pl.)

56. Amateur radio abbreviation for the Oceania region (abbr.)

57. Chemical symbol for lanthanum

58. Band between RF and BB

60. Electronics manufacturer with "meatball" logo

62. Chemical symbol for erbium

63. Chemical symbol for lutetium

65. Electronics Industry Association (abbr.)

67. Sampling rate pioneer

70. Type of digital filter (abbr.)

72. Chemical symbol for mendelevium

73. Amateur radio abbreviation for the Oceania region (abbr.)

74. Chemical symbol for selenium

75. Weight (abbr.)

76. Chemical symbol for bismuth

78. Unit of inductance (abbr.)

79. ????? Across + _________ (first part of seasonal message from RF Cafe)

84. Chemical symbol for chlorine

85. Chemical symbol for holmium

86. Unit of inductance (abbr.)

87. Chemical symbol for calcium

89. Unit of length (abbr.)

90. Chemical symbol for aluminum

92. Ability to store a charge

93. After Uranus

97. Kind of tube containing a constriction that is used to measure the rate of flow of a fluid

101. FCC Part 15 rules apply in this band (abbr.)

102. Voice of America

103. Chemical symbol for antimony

104. Chemical symbol for neptunium

1. Unit of inductance (abbr.)

2. Filter type with high rate of out-of-band attenuation (aka 'elliptic') (pl.)

3. Electric coronal discharge (pl.)

4. 3-phase transformer configuration

5. Semiconductor and calculator company (abbr.)

6. Opposite of a LO

7. Silicon transistor type (abbr.)

8. Triangular joint filler added for strength

9. Insulating cover over a solder joint

10. Network department (abbr.)

14. One port of an amplifier

15. 11 Across + ___ + 17 Across (second part of seasonal message from RF Cafe)

16. Type of current

17. A major search engine

19. Fuses metals together using heat

22. Synchronous Digital Hierarchy

23. Moon of Saturn with retrograde orbit

24. A rectangular array of numbers in rows and columns that is treated as a single entity and manipulated according to particular rules

25. Degree of IC sophistication (abbr.)

28. Computer Assisted Design and Development

30. European Telecommunications Standards Institute (abbr.)

32. Facility where semiconductors are manufactured

33. 5,280 feet (pl.)

35. Type of flip-flop

36. Weatherproof cover for a radar antenna (pl.)

37. Below ELF

41. A statement that has been proven on the basis of previously established statements (pl.)

42. Number system of 1's and 0's

44. Computer messaging service (pl.)

46. The "R" in R&D

47. Filter type that blocks lower frequencies (abbr.)

49. Unit of length (abbr.)

51. Unit of frequency (archaic, abbr.)

53. Mass unit (abbr.)

55. Chemical symbol for silver

57. One component of volume

59. LCD display vendor

61. 10E1 numerical prefix

64. Greek letter

66. Theoretical

68. Type of matrix barcode used with laser scanning(abbr.)

69. Multifunctional silicon devices (abbr.)

71. Having to do with charged particles

75. Wideband CDMA

77. First name of a British scientist of falling apple fame

80. Chemical symbol for rhodium

81. Galilean moon

82. Test point (abbr.)

83. Unit of inductance (abbr.)

84. Electronic enclosure

88. An angle described by hypotenuse/opposite sides of a right triangle

89. Unit of frequency (archaic, abbr.)

91. Front edge of a wing (abbr.)

94. Service of the ARRL that helps hams solve technical problems (abbr.)

95. Popular computer device interface (abbr.)

96. Home state of Los Alamos lab (abbr.)

98. 1.602E-19 Joules

99. Negation prefix

100. Transformer interwinding connection


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 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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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