Jerry
Rappel (WWØE), current VP of the Eastern Iowa DX Association
(EIDXA) and newsletter editor, contacted me about using one of the weekly engineering-themed crossword puzzles in the group's newsletter. I
responded by offering to create a custom crossword for them. The result is this week's puzzle. Clues for words specific to EIDXA have asterisks
(*) after them. All the rest of the words are related to engineering and science.
Reproduction of this puzzle without the express permission of RF Cafe is prohibited. acr. = acronym, abbr. = abbreviation,
pl. = plural, wds. = words

1. Measures of voltage 7. Ratio of circumference to diameter 8. Chemical symbol for aluminum 10. Chemical symbol for selenium 12.
Chemical symbol for beryllium 13. The 'I' in EIDXA* 14. Radio term for indicating the end of a transmission segment 16. Ham abbreviation
for "distant station" and part of the Eastern Iowa DX Association abbreviation* 18. Current EIDXA VP Jerry ______ (WWØE)* 20. Max or min
voltage of a waveform (abbr.) 21. Network department (abbr.) 23. Semiconductor and calculator company (abbr.) 24. Early predecessor
to an online forum (abbr.) 25. Change connector type 28. ___-back transformer 30. Chemical symbol for radon 31. ___-back transformer
32. Stock symbol for Boeing 33. Infrared (abbr.) 35. Related to FM by a differential 37. Association of North American Radio Clubs
39. Optical cross-connect (abbr.) 41. RF connector type 42. Arithmetic Logic Unit (abbr.) 44. The 'E' in EIDXA* 47. Antenna (abbr.)
50. Test document for verifying proper function (abbr.) 52. Early computer display screen resolution (abbr.) 54. Abbreviation for the
Eastern Iowa DX Association* 56. Chemical symbol for scandium 58. Chemical symbol for aluminum 59. Chemical symbol for cadmium 60.
CDMA Development Group (abbr.) 61. One type of electron spin 63. Electrical overstress (abbr.) 64. Ethoxyethane 66. Powers pneumatic
devices 68. JavaScript (abbr.) 69. Chemical symbol for silicon 70. Chemical symbol for nobelium 71. Sailplane 76. Related to
FM by a differential 77. First EIDXA President ____ Jaksa (WAØVDX)* 79. Move in a raster pattern 80. Chemical symbol for silver
81. Unit of length (abbr.) 82. European equivalent to the U.L. 84. Modern battlefield technique (abbr.) 86. Temperature sensitive semiconductor
that has a negative temperature coefficient of resistance |
1. The 'A' in EIDXA* 2. Min-to-max voltage of a waveform (abbr.) 3. Constellation: The scales 4. Chemical symbol for tantalum 5.
Electrical safety organization (abbr.) 6. Electronic Variable Optical Attenuator (abbr.) 9. Keyboard character deleter 11. 1.602E-19
Joules 15. Chemical symbol for erbium 16. Printer resolution abbreviation 17. Chemical symbol for xenon 19. Push to Talk (abbr.)
20. Chemical symbol for lead 22. Time delay (abbr.) 24. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm
26. Chemical symbol for argon 27. Silicon transistor type 28. Type of screw (2 wds., pl.) 29. First EIDXA VP ____ Schriner (WØPCO)*
32. Filter type that blocks frequencies in a specified band (abbr.) 34. Mate to a TX 36. Surfaces for pointing device (pl., 2 wds.)
38. Type of current flow (abbr.) 40. Software engineering tool (abbr.) 43. Chemical symbol for lanthanum 45. Chemical symbol for radon
46. Negative temperature coefficient (abbr.) 48. Heat measuring instrument 49. Device that performs a motivating function 50. Analog-to-Digital
(abbr.) 51. Temperature-compensated crystal oscillator 53. Chemical symbol for gallium 55. Opposite of O.D. 57. Trim a piece of
Kapton tape to length 62. Unit of inductance (abbr.) 63. Chemical symbol for erbium 64. IC killer (abbr.) 65. Chemical symbol for
einsteinium 67. Galilean moon 68. First EIDXA Treasurer-Secretary ____ Spencer (WØFHE)* 72. Filter type that blocks upper frequencies
(abbr.) 73. Quickly changing portions of waveforms 74. Chemical symbol for radium 75. Radio signal route 78. 300 Hz to 3 kHz in
audio (abbr.) 82. Chemical symbol for chromium 83. Electromagnetic (abbr.) 85. Weight (abbr.) |
See solution below
Take 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.
2021 | 2020
| 2019 | 2018
| 2017 | 2016
| 2015 | 2014
| 2013 | 2012
| 2011 | 2010
| 2009 | 2008
| 2007 | 2006
| 2005 | 2004
| 2003 | 2002
| 2001 | 2000
| Sudoku
December 25 December 18 December 11 December 4
November 27
November 20
November 13
November 6
October 30 October 23 October 2 September 25 September 18 September 4
August 28
August 21
August 14
August 7
July 31
July 24
July 17
July 10
July 3
June 26
June 19
June 12
June 5
May 29
April 10
March 20
March 13
March 6
February 28
February 21
February 7
January 31
January 24
January 17
January 10
January 3

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