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Espresso Engineering Workbook™
Smith Chart™ for Excel
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RF Cafe Engineering & Science Crossword Puzzle
October 29th, 2023
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As with my hundreds of previous engineering and science-themed crossword puzzles,
this one for October 29th uses only clues and terms associated with engineering,
science, physical, astronomy, mathematics, chemistry, etc., which I have built up
over more than two decades. Many new words and company names have been added that had
not even been added to the world's technical lexicon when I started in the year 2002.
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. You might, however, encounter the
name of a movie star like Hedy Lamarr
or a geographical location like
Tunguska,
Russia, for reasons which, if you don't already know, might surprise you. The technically inclined cruciverbalists amongst us will appreciate
the effort. A full list of all RF Cafe crosswords is at the page bottom. Enjoy!
Reproduction of this puzzle without the express permission of
RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words
<click for full size to print>
1. Causing a voltage or current waveform to
gradually die out
6. Generic term for a capacitor or inductor
11. Software
drafting tool (abbr.)
12. Sound frequency in the human hearing range (abbr.)
13. Switch configuration (abbr.)
16. Unit of inductance (abbr.)
17.
Keyboard key
19. Word used in describing 2-D and 3-D object dimensions; i.e.,
10 mm __ 25 mm
20. A common RS-232 serial bus command (abbr.)
21.
Elementary particle
22. Type of digital filter (abbr.)
24. A common
battery cell size
25. milliampere-hour (abbr.)
27. Filter type that blocks
upper frequencies (abbr.)
29. Peak envelope power (abbr.)
31. Factor of a
polynomial
32. A coherent monochrome light source (pl.)
35. Network
configuration type (pl.)
37. Unit of inductance (abbr.)
38. Resistor used
to drain voltage off of a high potential supply (pl.)
40. Electrical safety
organization (abbr.)
41. Centimeter (abbr.)
43. Exponent that returns the
original number
45. Discipline for aircraft navigation in low visibility
environments (abbr.)
47. Chemical symbol for radium
48. Sound frequency in
the human hearing range (abbr.)
49. Device under test (abbr.)
50. The cell
band above DCN
51. Switch position
52. Chemical symbol for iron
53.
Between-series connector (pl.)
58. Chemical symbol for lithium
60. The
highest level Amateur Radio license rating
62. Does not reference the power
supply outputs to ground
63. This is required to causes a change in the
motion of a body
64. Attenuator
65. Internet protocol (abbr.)
66. A
keyboard key
67. Min-to-max voltage of a waveform (abbr.)
69. Yttrium
Aluminum Garnet
71. Sharp bend in I-V curve
73. "Texting" (abbr.)
74.
10E1 numerical prefix
76. A feedback scheme to level out the receiver audio
volume (abbr.)
78. Unit of capacitance (abbr.)
79. European
Telecommunications Standards Institute (abbr.)
80. Weight (abbr.)
81.
Heterojunction Bipolar Transistor
82. Run through compliance testing
83. A
condition in which "free" or dissolved oxygen is present in water |
1. 24 hours
2. Analog-to-Digital (abbr.)
3. Radio signal route (pl.)
4. Bands between RF and baseband
5. Global
System for Mobile Communications (abbr.)
6. Stock symbol for Raytheon
7.
Software layer that allows a system to be programmed via a defined set of
commands (abbr.)
8. ICs
9. Opposite of I.D.
10. Government program to
bring electricity to farms (abbr.)
11. Unlicensed FCC Part 95 realm for
personal and business radio use (abbr.)
14. Short waveform excursion from a
reference state
15. Added an impurity to a semiconductor
18. Chemical
symbol for lanthanum
20. Stream of electrons (2 wds.)
23. S11 (2 wds.)
25. Minutes of Use (abbr.)
26. Wireless local loop (abbr.)
28. Airport
Surveillance Radar (abbr.)
30. Programmable logic device (abbr.)
31. Web's
most popular radio frequency engineering site (2 ltrs. + 1 wd.)
33. Archaic
term for an outdoor antenna
34. Ctr+Alt+Del
36. Mr. Arrhenius' first name
38. Electron beam particle
39. Halves of DIP's
42. 300 kHz to 3 MHz
44.
Greek letter used for frequency
46. A BPF specification (abbr.)
47.
Read-only (abbr.)
52. Network file transfer protocol (abbr.)
54. Design
for Manufacturability (abbr.)
55. The tip of a PCB probe
56. They go on
reels for high volume production
57. Readability, Signal, and Tone (QoS
report type)
59. International Reply Coupon (abbr.)
61. Change connector
type
63. 10E-15 numerical prefix
67. Last stage in a transmitter (abbr.)
68. Common plastic insulation type (abbr.)
70. Ground fault interrupter
(abbr.)
71. Send Morse Code
72. Electronics Industry Association (abbr.)
73. Measure of source / load mismatch (abbr.)
74. Relative power level unit
(abbr.)
75. PC follower
77. European equivalent to the U.L.
81.
Opposite of a LO |
See solution below
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