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Copyright: 1996 - 2024
    Kirt Blattenberger,


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

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Radio & Radar Crossword Puzzle
November 29, 2020

For the sake of avid cruciverbalists amongst us, each week I create a new crossword puzzle that has a theme related to engineering, mathematics, chemistry, physics, and other technical words. This November 29th Radio & Radar crossword puzzle, as always, 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., Hedy Lamarr or the Bikini Atoll). 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

Engineering Crossword Puzzle for November 29, 2020 - RF Cafe

1. Type of component package (abbr.)
2. The difference, measured in degrees, between the phase of the amplifier's output signal and -360° (2 wds.)
11. PC follower
13. Generated an official engineering change document
14. Similar to a laser, but at lower frequencies
15. Type of current flow (abbr.)
17. Add bushings
18. Switch configuration (abbr.)
19. Stock symbol for Boeing
20. BASIC looping keyword
22. Chemical symbol for radium
23. The "B" in BER
25. Chemical symbol for tin
26. File name extension for an ASCII file
27. A common battery cell size
28. Trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily (pl.)
30. Chemical symbol for chlorine
31. Chemical symbol for platinum
32. Electronics Industry Association (abbr.)
34. Peripheral Component Interface (abbr.)
37. Infrared (abbr.)
39. Inventor of the high voltage generator that powers the Jacob's Ladder (2 wds.)
40. Test equipment (abbr.)
41. Schema for computer or device presentation to the operator (abbr.)
42. A keyboard key
43. Chemical symbol for silicon
45. Chemical symbol for radon
46. Added an impurity to a semiconductor
50. European equivalent to the U.L.
52. Push to Talk (abbr.)
54. Chemical symbol for lanthanum
56. Logical negation operator
57. Filter type that blocks upper frequencies (abbr.)
59. Logarithmic reflectivity unit
61. S12 or S21 (abbr.)
62. Plug-in for computer bus
64. Airfoil shapers
66. One component of a complex number (abbr.)
67. Radio Amateur Civil Emergency Service (abbr.)
68. Just entering the nonlinear region
69. Chemical symbol for antimony
70. What you make with a DMM or o-scope
71. Chemical symbol for einsteinium
1. Metal or plastic rod that connects a potentiometer wiper to a knob
2. Substrate for mounting components (abbr.)
3. Unit of time
4. Active Electronically Scanned Array (abbr.)
5. Synchronous Digital Hierarchy
6. Lunar 'seas'
7. Common average used for sinewaves (abbr.)
8. Key feature in a high level overvoltage protection device (pl.)
9. Integrated Services Digital Network (abbr.)
10. On-the-air meeting of hams at a set time, day and radio frequency
12. PCB interconnect
16. Chemical symbol for cobalt
19. Filter type that blocks frequencies in a specified band (abbr.)
21. Dilbert rodent
23. Chemical symbol for bismuth
24. Coefficient of temperature (abbr.)
26. Under sampled
28. Mr. Packard's (HP) first name
29. The scalar component of velocity
31. Short for potentiometer
32. Unit of energy
33. International Telecommunications Union
35. Metric system (abbr.)
36. International Reply Coupon (abbr.)
38. Radio frequency interference (abbr.)
44. Quantum electron property (pl.)
47. Switch position
48. David ____ - popular author on microwave engineering
49. Radio signals from the cosmos (abbr.)
51. Type of telescope mount (abbr., pl.)
53. Chemical symbol for thallium
54. Tie a bundle of wires together
55. Length times width
57. Geometric entity with only length
58. Common solder composition (pre-lead-free, abbr.)
60. Filter type that blocks frequencies in a specified band (abbr.)
62. Person responsible for program spending (abbr.)
63. Satellite TV system
64. Type of memory
65. Adjust a pot 

See solution below


2020 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.

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Engineering Crossword Puzzle Solution for November 29, 2020 - RF Cafe

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