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.
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.
Reproduction of this puzzle without the express permission
of RF Cafe is prohibited.
ACROSS
DOWN
1. Current-voltage
phase mnemonic for capacitance 4. Make equal 8. Person
responsible for program spending (abbr.) 11. Design for Manufacturability
(abbr.) 12. 10 decibels 13. Stock symbol for Advanced
Micro Devices 15. Early computer display screen recolution
(abbr.) 16. 30 Hz to 300 Hz 17. Chemical symbol for lawrencium
18. A common battery cell size 21. Chemical symbol for cobalt
22. Cellphone band below PCS 23. Association of North American
Radio Clubs 25. A concern of Boolean equations 26. Start
frequency (abbr.) 27. BS__ - the degree held by many RF Cafe
visitors 28. The "E" in BER 29. Unit of frequency (archaic,
abbr.) 31. Bands between RF and baseband 33. Chemical
symbol for mendelevium 34. Direct Memory Access (abbr.)
37. Opposite of a LO 39. 1/000 of an amp (abbr.) 40. Image
file format name extension 43. Glue together 45. Between-series
connector 46. End-to-end joint 47. Impurity in a semiconductor
that adds a mobile electron in the conduction band 48. Unit
used in the measurement of radioactivity that was named after
a winner of the Nobel Prize in both Physics and Chemistry
49. Semiconductor lamps 50. Discoverer of Jupiter's moons
54. Frequency division multiple access (abbr.) 56. Using
the moon as a passive reflector to establish a signal path;
moonbounce (abbr.) 57. Chemical symbol for erbium 58.
Chemical symbol for manganese 59. A keyboard key 60. Network
department (abbr.) 61. Flash caused by an electric current
ionizing a gas or vapor 63. Multifunctional silicon devices
(abbr.) 65. Adjustment dial (pl.) 66. Filter type that
blocks frequencies below and above a specified band (abbr.)
67. 3 MHz to 30 MHz 69. Bore a hole 71. Provider of services
for telecommunications systems in Switzerland (abbr.) 73.
U.K. equivalent of the IEEE 76. Chemical symbol for silver
78. Nuclear explosion byproduct harmful to electronic (abbr.)
79. Chemical symbol for holmium 80. Method of self-detection
and self-fixing transmission of digital data (abbr.) 82.
U.S. Spectrum allocation agency 83. Airflow rate (abbr.)
85. Big Blue 86. Digital storage oscilloscope (abbr.)
87. End of Life (abbr.) 88. Add an ion during semiconductor
processing 89. Direct Digital Synthesis (abbr.)
1. Theoretical
2. Curly-Q type light bulb (abbr.) 3. Electromotive force
(abbr.) 4. Digital transmission figure of merit (abbr.)
5. Chemical symbol for aluminum 6. Chemical symbol for calcium
7. Science of assuring operation amid dense EM background noise
(abbr.) 8. Imaging device (abbr.) 9. Feedback system used
to maintain constant level (abbr.) 10. Similar to a laser,
but at lower frequencies 12. Color representing "0" 14.
Added an impurity to a semiconductor 18. Primary U.S. standards
organization founded in 1918 (abbr.) 19. A common battery
cell size 20. Amateur Radio Emergency Service (abbr.)
23. Sound frequency in the human hearing range (abbr.) 24.
European equivalent to the U.L. 30. Restores batteries
32. Network file transfer protocol (abbr.) 33. Father of
radio 34. Logarithmic ratio (abbr.) 35. Short for modulator/demodulator
36. Positive electrode 38. Opposite of O.D. 39. Chemical
symbol for molybdenum 40. Bushing used to direct the path
of a pushrod 41. Things in a bill of material 42. Unit
of length (abbr.) 44. The system than converts common website
names to IP addresses (abbr.) 46. Notch type filter (abbr.)
49. Front edge of a wing (abbr.) 51. Chemical symbol for
argon 52. Discipline for aircraft navigation in low visibility
environments (abbr.) 53. 1/6 inch printer's measure 55.
Type of current flow (abbr.) 60. First name of a British
scientist of falling apple fame 61. Nearest and furthest
points to the center of gravitational attraction for a body
in orbit 62. Divide a signal into into chunks for sampling
64. Optical storage medium 65. Cutting instrument 66.
Stock symbol for Boeing 68. Type of modulation (abbr.)
70. Search engine 72. Centimeter (abbr.) 74. Engineering
Change Order (abbr.) 75. High-speed logic family 77. Ground
fault interrupter (abbr.) 79. Heterojunction Bipolar Transistor
80. Frequency Division Duplex 81. IC killer (abbr.) 84.
Unit of length (abbr.) 85. One port of an amplifier
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 tying up your telephone line, and a lady's voice announced "You've Got Mail"
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