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This custom RF Cafe electronics-themed crossword puzzle for February 4th contains
only clues and terms associated with engineering, science, physical, astronomy,
mathematics, chemistry, etc., which I have built up over more than two decades.
Being the 4th day, words containing the letter "D" are marked with an asterisk (*).
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
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1. 10E-1 numerical prefix *
4. When the upper
atmosphere acts like a waveguide *
9. Type of distribution, squared
11. 6.02x10E23
of anything (pl.)
15. Schematic label for voltage supply node
17. Read-only
(abbr.)
18. Chemical symbol for europium
19. Artech _____, technical book
publisher
21. Logarithmic unit of ratio *
23. Cable television (abbr.)
25. Intermodulation distortion (abbr.) *
28. Engineering Change Notice (abbr.)
29. Charged particle
30. Length times width
32. A type of average
34. Test
equipment (abbr.)
35. Direct Digital Synthesis (abbr.) *
37. Electronically
images a document
39. 36 inches *
41. Chemical symbol for praseodymium
42. Chemical symbol for thallium
43. Used logic gates *
45. Exponent that
returns the original number
46. Direct Memory Access (abbr.) *
49. Government
program to bring electricity to farms (abbr.)
50. Term indicating profitability
of a company (abbr.)
51. Unit of length (abbr.)
52. Chemical symbol for tantalum
53. 10E1 numerical prefix *
54. Moves from cell to cell
56. Amateur Teleprinter
Over Radio (abbr.)
59. Nearest and furthest points to the center of gravitational
attraction for a body in orbit
61. Negation prefix
62. Weight (abbr.)
64.
It can follow an MS *
65. Switch configuration (abbr.) *
67. Chemical symbol
for radon
69. Chemical symbol for erbium
70. Extracted information from a
carrier signal *
73. Filter type that blocks frequencies in a specified band
(abbr.)
74. Chemical symbol for europium
75. Unit of resistance (pl.)
77.
Opposite of USB
78. Part of this website's title
79. Part of a male connector
80. 2/3 of a triac *
81. Troubleshooting software *
83. 5,280 feet (pl.)
86. Chemical symbol for argon
87. Chemical symbol for nickel
88. One type
of electron spin
90. The UK's largest defense electronics contractor (abbr.)
91. Be behind in phase
93. U.S. military organization (abbr.) *
94. Permeability-tuned
oscillator (abbr.)
95. Circuit path with very high or infinite impedance
97.
Chemical symbol for chromium
98. 1.602E-19 Joules
99. Automatic Packet Position
Reporting System (abbr.)
101. Causes a voltage or current waveform to gradually
die out *
103. Slang for transmitter and/or receiver
104. Part of a FOR loop
105. Airfoil shapers
108. Halves of DIP's
110. Digital encoding of the transmission
mode in the vertical sync portion of an SSTV image (abbr.)
111. Current-voltage
phase mnemonic
113. Miniature RF connector
115. 10E1 numerical prefix *
116. Degrades or destroys performance *
118. Narrowband Advanced Mobile Phone
System (abbr.)
120. Unit of capacitance (abbr.)
122. Chemical symbol for arsenic
123. FCC Part 15 rules apply in this band (abbr.)
124. A coherent monochrome
light source
126. Display type *
127. Small motored tool for model drilling,
grinding, shaping, etc. (pl.) *
128. Weatherproof cover for a radar antenna * |
1. The "D" in CD (pl.) *
2. Centimeter (abbr.)
3. Its chemical symbol is I *
4. Type of current *
5. Study for a test just
before taking it
6. Electronic assembly transport container
7. Chemical symbol
for neon
8. Schema for computer or device presentation to the operator (abbr.)
9. Chemical symbol for cobalt
10. Color quality
12. Low altitude earth orbit
13. Engineering Change Notice (abbr.)
14. Chemical symbol for silicon
15.
The "V" in VLF
16. Opposite of set
19. Constellation : The water snake *
20. Integrate data onto a carrier wave *
22. Stock symbol for Boeing
24. A
gaseous substance that can be liquefied by pressure alone
26. Reliability measure
27. Receiver adjustment allowing slight off-frequency local oscillator to accommodate
misaligned transmitter (2 wds.) *
31. Broadcast coverage region
33. The design
component of total product cost (abbr.)
35. Vector multiplication that returns
a scalar value (2 wds., pl.) *
36. Chemical symbol for selenium
38. Automatic
network analyzer (abbr.)
40. Reduce the amount of response overshooting *
44. Adds an impurity to a semiconductor *
46. Impurity in a semiconductor that
adds a mobile electron in the conduction band *
47. 1/000 of an amp (abbr.)
48. Modulation type (abbr.)
50. Unit of length equal to 5.5 yards *
54. Type
of memory
55. Shortwave listener (abbr.)
57. Amplifier linearity specification
(abbr.) *
58. Min-to-max voltage of a waveform (abbr.)
60. Chemical symbol
for strontium
61. Irradiated cosmic gas
63. Wrapped plastic insulation around
an electrical joint *
65. Constellation : The dragon *
66. Morse Code for
"from" *
68. Unit of inductance (abbr.)
70. 2 x SSB *
71. Design for Manufacturability
(abbr.) *
72. Service of the ARRL that helps hams solve technical problems (abbr.)
73. Chemical symbol for bismuth
76. Chemical symbol for mendelevium *
77.
Mr. de Forest's first name
80. Form/fit/function replacement (hyph.) *
81.
Mr. Packard's (HP) first name *
82. Key feature in a high level overvoltage protection
device (pl.)
84. Opposite of O.D. *
85. Local Oscillator (abbr.)
86. Unit
of atmospheric pressure (abbr.)
87. Mr. Bohr's first name
89. Type of data
storage IC (abbr.)
90. Digital transmission figure of merit (abbr.)
92. Vacuum
tube element (pl.) *
94. Met all test requirements *
96. Chemical symbol for
praseodymium
100. Junk e-mail
101. Thread cutting tools *
102. Ratio of
a mechanical drawing
106. Light ray
107. Society of Civil and Structural Engineers
(abbr.)
109. Type of component package (abbr.)
110. Video Graphics Array (abbr.)
112. Science of assuring operation amid dense EM background noise (abbr.)
114.
Manufacturer of project boxes *
117. Chemical symbol for aluminum
119. Chemical
symbol for palladium *
121. Chemical symbol for francium
123. Network department
(abbr.)
125. Read-only (abbr.) |
See solution below
| 2024 Crosswords Archive |
|
 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.
2024 | 2023
|2022 | 2021
| 2020 | 2019
| 2018 | 2017
| 2016 | 2015
| 2014 | 2013
| 2012 | 2011
| 2010 | 2009
| 2008 | 2007
| 2006 | 2005
| 2004 | 2003
| 2002 | 2001
| 2000 |
Sudoku
Cruciverbalist:
A cruciverbalist is a person who is skilled at creating or solving crossword
puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and
"verbalist" from "verbal," indicating a person who deals with words.
cruciverbalists are often responsible for designing
crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and
the techniques used in constructing and solving crosswords. They aim to make puzzles
that are both challenging and enjoyable for crossword enthusiasts.
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April 28
April 21
April 14
April 7 |
March 31
March 24
March 17
March 1967 Radio-Electronics PuzzlerFebruary 18
February 11
February 4
January 28
January 21
January 14
January 7
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