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RF Cafe Engineering & Science Crossword Puzzle
July 28, 2019

This RF Cafe Engineering & Science Crossword Puzzle contains at least 10 words from headlines posted on the homepage during the week of July 22-26, 2019 (marked with an asterisk*). These custom-made engineering and science-themed crossword puzzles are done weekly for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. Every word and clue - without exception - in these RF Cafe puzzles has been personally entered into a very large database that encompasses engineering, science, physical, astronomy, mathematics, chemistry, etc. Let me know if you would like a custom crossword puzzle built for your company, school, club, etc. (no charge).

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 Puzzle July 28, 2019 - RF Cafe

<click for full size to print>

1. Search for New Semiconductors Eyes _______ Oxide*

6. _______ Communication Equipment Market to Grow at 10% YoY 2019 to 2029*

11. 3 GHz to 30 GHz

12. Modulation type (abbr.)

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

16. Radio signals from the cosmos (abbr.)

17. Minutes of Use (abbr.)

19. Return-to-Zero (abbr.)

20. Stock symbol for Advanced Micro Devices

21. Small Office/Home Office (abbr.)

22. Code for a type of electrical wire insulation (abbr.)

24. 30 kHz to 300 kHz

25. Indium phosphide (abbr.)

27. Chemical symbol for nobelium

29. 30 GHz to 300 GHz

31. Transitions from solid to liquid phase

32. Graphs

35. Have a chemically induced effect

37. Chemical symbol for silicon

38. Antenna effective area

40. Army-Navy specification prefix

41. Shorthand for oxygen

43. Cellphone band directly above DCS

45. Logical negation operator

47. S12 or S21 (abbr.)

48. One component of a complex number (abbr.)

49. Radio frequency interference (abbr.)

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

51. Unit of volume (abbr.)

52. Part of a FOR loop

53. RF power tapping devices

58. Boob tube (abbr.)

60. Type of chart used to plot immittance

62. Computer messaging service (pl.)

63. Inductors

64. Semiconductor On Insulator (abbr.)

65. One port of an amplifier

66. Rádio Nacional de Angola (abbr.)

67. Type of electrical service cable rated for below-grade installation (abbr.)

69. Silicon transistor type (abbr.)

71. Sharp bend in I-V curve

73. Mr. de Forest's first name

74. Type of modulation (abbr.)

76. Global Market for ___-Focused Satellite Services Worth $5.9B in 2025*

78. Type of logic gate

79. European Telecommunications Standards Institute (abbr.)

80. Unit of time (abbr.)

81. ___ Launches Antitrust Probe into Tech Giants*

82. €500M German _______ Institute Hit by Scandal over Site Decision*

83. _______ Radio at 2019 EAA AirVenture in Oshkosh*

1. FCC Modifies 2.5 ___ Band Regulations to Support 5G*

2. Sound frequency in the human hearing range (abbr.)

3. Lights

4. Intermodulation distortion (abbr.)

5. Lowest power level capable of being demodulated (abbr.)

6. Digital storage oscilloscope (abbr.)

7. Semiconductor device type (abbr.)

8. Ethoxyethane

9. Centimeter (abbr.)

10. End of Life (abbr.)

11. Chemical symbol for strontium

14. System for underwater navigation

15. Circuit path with very low or 0 ohms of impedance

18. Unit of capacitance (abbr.)

20. What is the negatively charged antiparticle of a proton called

23. A bridge circuit used for accurate electrical measurements, named after its inventor

25. Precision landing system (abbr.)

26. ___/IP scheme for networked connectivity

28. Resistive component of a capacitor's lumped element model (abbr.)

30. Cooling device

31. CEOs Diverge on _____'_ Law*

33. Its chemical symbol is He

34. Perform a quantum event by penetrating a seemingly impassable barrier

36. Indian ______ Consider 5G Auction Boycott*

38. Application Specific Integrated Circuit (abbr.)

39. Last keyword in a BASIC subroutine (pl.)

42. Chemical symbol for xenon

44. Chemical symbol for californium

46. Switch position

47. Multifunctional silicon devices (abbr.)

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

54. Original Equipment Manufacturer (abbr.)

55. Display a radar target

56. Geometric entity with only length (pl.)

57. Readability, Signal, and Tone (QoS report type)

59. Circuit element connecting PCB layers

61. Common test for verifying high voltage tolerance w/o breakdown

63. _____ factor, the peak-to-average waveform value

67. Schema for computer or device presentation to the operator (abbr.)

68. Wireless transmitting device that opens a car door remotely

70. The design component of total product cost (abbr.)

71. Send Morse Code

72. Electronics Industry Association (abbr.)

73. Low Noise Amplifier (abbr.)

74. BASIC looping keyword

75. Unit for 1,000,000 watt-seconds (abbr.)

77. Chemical symbol for tantalum

81. Display unit (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.

2024 | 2023 |2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | Sudoku


A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 29

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