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 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 28
December 21
December 14
December 7
November 30
November 23
November 16
November 9
November 2
October 26
October 19
October 12
October 5
September 28
September 21
September 14
September 7
August 31
August 24
August 17
August 10
August 3
July 27
July 20
July 13
July 6
June 29
June 22
June 15
June 8
June 1
May 25
May 18
May 11
May 4
April 27
April 20
April 13
April 6
March 30
March 23
March 16
March 9
March 2
February 23
February 16
February 9
February 2
January 26
January 19
January 12
January 5
Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
1. Virtual Private Network
4. Radio Amateur Satellite Corporation (abbr.)
8. Thin Shrink Small Outline Package (abbr.)
12. Amplifier linearity specification (abbr.)
15. Notch type
filter (abbr.)
17. Specialized mobile radio (abbr.)
18. Stock symbol for Advanced Micro Devices
19. Peak
envelope power (abbr.)
21. PC follower
23. ___-AZIMUTH telescope mount
25. Keyboard key
27. Low- to
mid- frequency RF connector
28. Computer communication scheme (abbr.)
29. Chemical symbol for polonium
30. Negation prefix
32. Elemental compound used for microwave frequency reference oscillators (abbr.)
34.
Chemical symbol for gold
35. Network department (abbr.)
36. IC killer (abbr.)
37. Synchronous Digital
Hierarchy
38. Sharp bend in I-V curve
39. Low Noise Amplifier (abbr.)
41. Nordic Mobile Telephone
42. Printed Wiring Board (abbr.)
43. A type of average
45. Current-voltage phase mnemonic
46. Electromagnetic
interference (abbr.)
48. Short for "intermodulation"
49. Plane curve traced out by a point which moves so
that its distance from a fixed line is equal to its distance from a fixed point
50. Science of assuring operation
amid dense EM background noise (abbr.)
52. Large unit of apparent power (abbr.)
53. Counter ElectroMotive
Force (abbr.)
56. It can follow an MS
58. A common battery cell size
59. Antenna gain unit (abbr.)
62. Vacuum tube element
65. Country of RF Cafe's residency
66. Be behind in phase
67. With 51 Down, the
world's best engineering website
68. Chemical symbol for radium
70. Type of logic gate
72. The design
component of total product cost (abbr.)
73. Multifunctional silicon devices (abbr.)
74. End of Life (abbr.)
75. Current-voltage phase mnemonic
76. Filter type that blocks upper frequencies (abbr.)
78. Silicon transistor
type (abbr.)
80. European equivalent to the U.L.
81. Multifunctional silicon devices (abbr., pl.)
82.
Peak Inverse Voltage
83. High-speed logic family
85. Minutes of Use (abbr.)
87. Asynchronous Transfer
Mode (abbr.)
88. International QSL forwarding bureau
89. A popular spreadsheet
90. Readability, Signal,
and Tone (QoS report type) |
2. Chemical symbol for lead
3. Gun safety and education organization (abbr.)
5. 1E6 nanoseconds
6. Electronic component package type (abbr.)
7. Length times width
9. Prefix for font
without serifs
10. Miniature RF connector
11. Opposite of I.D.
12. Base of the decimal number system
13. Filter type that blocks lower frequencies (abbr.)
14. Parallel resonant circuit containing only a coil
and a capacitor (2 wds.)
16. ___-back transformer
19. Attenuator
20. He shared credit with Shockley and
Brittain for the invention of the transistor (2 wds.)
22. Unit of weight
24. Logic family (abbr.)
26.
A crescent shaped figure formed on a sphere or plane by two intersecting arcs
27. Eight bits
28. Lower sideband
(abbr.)
29. BlackBerry or Palm for example (abbr.)
31. Chemical symbol for neon
33. Switch position
36. Modern battlefield technique (abbr.)
37. Chemical symbol for selenium
40. Part of CAD
42. Attenuator
configuration (hyph.)
44. Type of computer display (abbr.)
47. The UK's largest defense electronics contractor
(abbr.)
51. With 67 Across, the world's best engineering website
52. ___ Friedrich Gauss, after whom the
unit of magnetic field strength is named
54. A keyboard key
55. 1/000 of an amp (abbr.)
56. Programmable
logic device (abbr.)
57. Chemical symbol for mercury
60. Armored cable type
61. Charged particle
63.
Chemical symbol for radon
64. International Reply Coupon (abbr.)
66. Line of Sight (abbr.)
67. An abbreviation
for "receiver"
69. Highest point
71. Angular speed unit
74. Electronic warfare defense (abbr.)
75.
Type of digital filter (abbr.)
77. U.S. Spectrum allocation agency
79. Type of logic gate
81. Network
department (abbr.)
82. Chemical symbol for plutonium
84. Front edge of a wing (abbr.)
86. Unit of time
(abbr.) |
See solution below
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