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As always, this week's crossword puzzle for April 23rd sports an electronics theme.
All
RF Cafe crossword puzzles are custom made by me, Kirt Blattenberger, and have 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,
Hedy Lamarr, 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
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1. S12 or S21 (abbr.)
2. Minutes of Use (abbr.)
3. Opposite of O.D.
4. Chemical symbol for nickel
5. Stock symbol for Harris Communications
6.
Chemical symbol for gallium
7. Bit error rate tester (abbr.)
8. Fine
tuning control on single-sideband CB radios (pl.)
9. 1,000 seconds (abbr.)
10. Sound frequency in the human hearing range (abbr.)
11. Time taken for
information to pass through a circuit element (2 wds.)
12. Join a male and a
female connector
13. Chemical symbol for cobalt
17. Type of current flow
(abbr.)
19. Ham's term for radio equipment enclosure (pl.)
20. Sample
group
21. Ovenized crystal oscillator (abbr.)
22. Metal mixtures
24.
Governmental agency that monitors pollution (abbr.)
25. Precision approach
radar (abbr.)
26. Rate of a radar transmitter's output waveform (abbr.)
30. Digital storage oscilloscope (abbr.)
32. Frequency division multiple
access (abbr.)
33. Electromagnetic (abbr.)
34. Chemical symbol for
chromium
35. Reliability measure
38. Short for potentiometer
39.
Internet address (abbr.)
42. The "E" in TEM
45. Insert a doping ion into a
semiconductor lattice
49. Type of digital filter (abbr.)
50. Logic family
(abbr.)
51. Temporary Engineering Change document (abbr.)
52. Service of
the ARRL that helps hams solve technical problems (abbr.)
53. Engineering
Change Notice (abbr.)
54. Ham's code for "Are my signals fading?"
59.
Resistors, capacitors, inductors, diodes, etc.
61. One port on a BJT (pl.)
62. Send a wireless to an early hip-worn wireless device
64. Unlicensed radio
type for personal and business use (abbr., pl.)
65. Ham abbreviation
indicating contacts with all major land masses
67. Society of Civil and
Structural Engineers (abbr.)
69. Connected to a transformer interwinding
point
72. Its chemical symbol is C
73. World's largest yearly convention
of gadget and device manufacturers (abbr.)
75. Modulation type (abbr.)
76.
Analog-to-Digital (abbr.)
78. World's largest yearly convention of gadget and
device manufacturers (abbr.)
80. Slang for transmitter and/or receiver
82.
Schema for computer or device presentation to the operator (abbr.)
84.
Semiconductor device type (abbr.)
85. Error checking scheme (abbr.)
87. An
abbreviation for "receiver"
88. Current summing point
89. Chemical symbol
for beryllium
92. 1e-6 mA
94. Type of chart
95. Test equipment (abbr.)
96. Part of a FOR loop
97. Transmit Incremental Tuning (abbr.)
100.
Army-Navy specification prefix
101. Decimeter (abbr.)
102. Chemical symbol
for californium
103. Chemical symbol for nobelium
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1. Intermodulation (abbr.)
3. One port of an amplifier
5. Chemical
symbol for mercury
7. Symbols and lines used to construct a representative
drawing of a system at a high level (2 wds.)
13. European equivalent to the
U.L.
14. FCC's Universal Licensing System (abbr.)
15. An unlicensed radio
band in the U.S. often used for walkie-talkies (abbr.)
16. A common battery
cell size
18. Type of logic gate (pl.)
20. Local Oscillator (abbr.)
22.
System for guiding aircraft (abbr.)
23. Junction between two different metals
that produces a voltage related to a temperature difference
27. Software
layer that allows a system to be programmed via a defined set of commands
(abbr.)
28. Mate to an RX
29. Programmable logic device (abbr.)
31.
Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)
34.
Optical storage media
36. Electronics components & batteries supplier based
in Japan
37. Containing a contaminant
40. Elemental compound used for
microwave frequency reference oscillators (abbr.)
41. BSEE + 2 years
43.
Type of logic gate
44. Parts _____
46. Chemical symbol for lawrencium
47. Chemical symbol for thallium
48. Modulation type (abbr.)
50. The "T"
in ATE
52. Enter data using the keyboard
55. Stock symbol for Intel
56.
European Telecommunications Standards Institute (abbr.)
57. Smartphone
display (abbr., pl.)
58. Type of high frequency circuit substrate (abbr.)
60. Move in a raster pattern
63. Read-only (abbr.)
64. Pure carrier
(abbr.)
66. Switch position
68. Basic element
70. Stock symbol for
Boeing
71. Type of high frequency circuit substrate (abbr.)
73. Early
computer display screen resolution (abbr.)
74. French mathematician and
physicist who's name is used as a unit of gas pressure
77. File name
extension for an ASCII file
79. Type of reconfigurable memory (abbr.)
81.
What is the name of the unit of angular measurement equal to one ninetieth of a
right angle
83. Part of a male connector
84. A BPF specification (abbr.)
86. Mr. Piper's famous yellow airplane
87. Process of passing a signal
through the same amplifier multiple times to increase gain
89. Digital
pattern coding type (abbr.)
90. Coefficient of temperature (abbr.)
91.
Negation prefix
93. 1.602E-19 Joules
94. Push to Talk (abbr.)
96. Ham
abbreviation for transceiver
98. 10E1 numerical prefix
99. Type of Nyquist
filter whose passband-to-stopband transition region has the shape of the first
half-cycle of a cosine raised so that the negative peak is at zero in passband
and stopband (2 wds., hyph.)
104. Chemical symbol for neon
105. 300 kHz to
3 MHz
106. Part of a FOR loop
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See solution below
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