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Auld Lang Syne 2021 RF Cafe Crossword Puzzle
Happy New Year!
December 26, 2021

This is the final RF Cafe Crossword Puzzle for 2021. Where has the year gone? Thank you for being a loyal visitor! Look for two clues with asterisks (*) relative to this theme. Otherwise, it has only words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. As always, this crossword contains no names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort unless it/he/she is related to this puzzle's technology theme (e.g., Reginald Denny or the Tunguska event in Siberia). The technically inclined cruciverbalists amongst us will appreciate the effort. Enjoy


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Auld Lang Syne 2021 RF Cafe Crossword Puzzle for December 26th, 2021 - RF Cafe

ACROSS DOWN
1. Symbols and lines used to construct a representative drawing of a system at a high level (2 wds.)
8. Powers pneumatic devices
9. Multifunctional silicon devices (abbr.)
10. One component of a complex number (abbr.)
11. Chemical symbol for neon
13. 3 MHz to 30 MHz
14. Oscillator type that is referenced to an external source (abbr.)
15. A BPF specification (abbr.)
16. European equivalent to the U.L.
18. Last stage in a transmitter (abbr.)
20. 10 decibels
22. Switch position
24. Type of data storage IC
25. Chemical symbol for gold
26. Miniature threaded RF connector
27. Chemical symbol for helium
28. Greek letter
30. Ratio of circumference to diameter
32. Thing in a bill of material
34. Electronic warfare defense (abbr.)
35. Elemental compound used for microwave frequency reference oscillators (abbr.)
37. Chemical symbol for erbium
38. Time delay (abbr.)
39. Curve traced out by a point which moves around another point with an ever increasing radius
43. Pure carrier (abbr.)
45. The "G" in AWG
48. Filter type that blocks frequencies below and above a specified band (abbr.)
49. Chemical symbol for tantalum
50. Chemical symbol for einsteinium
52. ampere-hour (abbr.)
54. Slow flow of metal when under high temperature or great pressure
56. Related to FM by a differential
58. Last name of one of the two scientists at Bell Labs who discovered the cosmic background noise of the Big Bang
61. Unit of time (abbr.)
62. Unix, Linux or Windows (abbr.)
64. Compressed image file format
66. Automatic Calibration System (abbr.)
68. Multiprotocol Label Switching (abbr.)
70. Type of flip-flop
71. Ratio of output to input power, voltage, current, light, etc. (pl.)
74. Chemical symbol for polonium
75. Intermodulation distortion (abbr.)
77. Chemical symbol for silver
79. Variable Frequency Oscillator
80. Fast Fourier transform (abbr.)
81. Substrate for mounting components (abbr.)
82. Chemical symbol for rhodium
83. Chemical symbol for californium
84. Unit of time (abbr.)
85. Multifunctional silicon devices (abbr., pl.)
86. Akin to an EE, CE, AE, etc.
87. Chemical symbol for zinc
89. Unit of inductance (abbr.)
90. 1.602E-19 Joules
91. Imaging device (abbr.)
93. Linear operation area of transistor curve (2 wds.)
1. Chemical symbol for bismuth
2. Chemical symbol for lawrencium
3. 1000 ohms
4. Type of current
5. Flash caused by an electric current ionizing a gas or vapor
6. Electronics manufacturer with "meatball" logo
7. Chemical symbol for manganese
8. Sound frequency in the human hearing range (abbr.)
12. Governmental agency that monitors pollution (abbr.)
13. My final 2021 greeting to you! (3 wds.)
14. Most positive element in a vacuum tube
15. Small unit of capacitance (abbr.)
16. Common shorthand reference for a capacitor
17. Nuclear explosion byproduct harmful to electronics (abbr.)
19. Scottish saying loosely translated as "for the sake of old times." (3 wds.)
20. Filter type that blocks frequencies in a specified band (abbr.)
21. Electromagnetic interference (abbr.)
23. Chemical symbol for iron
24. Type of data storage IC (pl.)
28. Unit of frequency (archaic, abbr.)
29. Airport Surveillance Radar (abbr.)
31. Network department (abbr.)
33. Unit of energy
34. Quickly changing portions of waveforms
36. Amateur radio abbreviation for the Oceania region (abbr.)
38. Another word for each complete winding of an inductor (pl.)
40. Chemical symbol for lead
41. Innovative Power Products, Holbrook, NY (abbr.)
42. PC follower
44. Akin to WAC, only just in America
46. Type of current flow (abbr.)
47. BS__ - the degree held by many RF Cafe visitors
51. Chemical symbol for silicon
53. Chemical symbol for holmium
55. Type of e-mail address system (abbr.)
57. Unit for 1,000,000 watt-seconds (abbr.)
59. Be behind in phase
60. 10E-9 numerical prefix
63. Describes when a synchronous motor loses phase lock (pl.)
65. Chemical symbol for praseodymium
67. Chemical symbol for cesium
68. The "M" in EMF
69. Miniature RF connector
72. A feedback scheme to level out the receiver audio volume (abbr.)
73. Type of secondary radar system (abbr.)
74. Unit of capacitance (abbr.)
76. Logarithmic ratio (abbr.)
78. Unit of frequency
80. Start frequency (abbr.)
84. Ultra High Voltage (abbr.)
86. Chemical symbol for mendelevium
88. 1e-6 mA
89. Ratio of circumference to diameter
90. Chemical symbol for erbium
91. Chemical symbol for cobalt
92. Cyanide (abbr.)

See solution below

 

2021 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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