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This week's crossword puzzle contains the usual collection of science, math, engineering terms, amateur
radio, but also has many words specifically relating to antennas (those are the clues marked with an asterisk *).
As always, you'll never be 'challenged' to know terms relating to movie stars, leaders of obscure countries,
or archaic pottery making terms. 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. Amateur Teleprinter Over Radio (abbr.)
6. __ + 18 Across is this website's title
7. Nikola
_____
13. Antenna capacitive element (2 wds.)*
15. Ground enhancing wire used at the base of an
antenna*
17. Modulation type (abbr.)
18. 6 Across + ____ is this website's title
21. Unit of
length (abbr.)
22. Radio Direction Finding (abbr.)
24. Type of high speed Internet service (abbr.)
26. Home state of Los Alamos lab (abbr.)
27. The UK's largest defense electronics contractor (abbr.)
28. Peak Inverse Voltage
30. Chemical symbol for tantalum
32. 1e3 uV
34. Chemical symbol for
gold
36. Test equipment (abbr.)
37. Network department (abbr.)
38. "Calling any amateur radio
station"
40. Recording onto magnetic media
43. A measure of receiver quality (abbr.)
44. Chemical
symbol for erbium
45. Filter type with high rate of out-of-band attenuation (aka 'elliptic')
47.
Chemical symbol for radon
48. Greek letter, used to indicate summation
50. Compressed image file
format
53. Amateur radio abbreviation for the Oceania region (abbr.)
54. FCC Part 15 rules apply
in this band (abbr.)
56. Opposite of O.D.
58. Parabolic antenna-to-waveguide interface component*
61. Stock symbol for Boeing
62. Transportation accident investigation agency (abbr.)
63. Key feature
in a high level overvoltage protection device (pl.)
65. Straight line emanating from a point source
(pl.)
66. Element in front of the driven element in a Yagi or Quad antenna*
70. Type of antenna
with an element made of a single, flexible rod or tube*
72. PC follower
73. Semiconductor and
calculator company (abbr.)
74. Chemical symbol for gadolinium
75. Chemical symbol for thallium
77. 1e-6 mA
78. 2-element, 1/2 wavelength antenna fed at the center*
81. Type of multi-element,
directional antenna*
83. 60/40, PbSn, for example
86. Opposite of a LO
87. Related to FM by
a differential
88. Chemical symbol for silver
90. Connected devices in series
95. Logarithmic
ratio (abbr.)
96. Time delay (abbr.)
98. Chemical symbol for praseodymium
100. Chemical symbol
for cobalt
101. Television Interference (abbr.)
103. Type of antenna with four-sided loops*
105. Ovenized crystal oscillator (abbr.)
107. What an unbalanced transmission line becomes, inadvertently*
108. Horizontal Cartesian coordinate |
1. PC follower
2. Chemical symbol for molybdenum
3. Attenuator topology (hyph.)
4. Unit of
resistance (pl.)
5. Chemical symbol for radium
7. Chemical symbol for tantalum
8. Erbium Doped
Fiber Amplifier (abbr.)
9. Real estate where equipment is located
10. Chemical symbol for lanthanum
11. Chemical symbol for aluminum
12. A simple type of antenna*
14. Coefficient of temperature
(abbr.)
15. One component of a complex number (abbr.)
16. Type of long wire antenna named after
its inventor (i.e., eponymous)
19. Army-Navy specification prefix
20. Type of modulation (abbr.)
23. Digital intelligence
25. Stock symbol for Lockheed Martin
27. A semi-automatic mechanical
code key
29. Thing in a bill of material
31. Current-voltage phase mnemonic
33. Unit of apparent
power (abbr.)
34. Army-Navy specification prefix
35. Ground fault interrupter (abbr.)
39. Ham's
code for "Are your receiving me badly?"
41. Another name for a test lead
42. Foot/12
43. Stock
symbol for National Semiconductor
46. 1
49. What mathematical device is defined as the collection
of points whose coordinates satisfy a given relation
51. Unit of capacitance (abbr.)
52. Electronics
manufacturer with "meatball" logo
54. Infrared (abbr.)
55. Chemical symbol for tin
57. Satellite
TV system
59. Resistive component of a capacitor's lumped element model (abbr.)
60. One port of
an amplifier
61. Bulk Acoustic Wave
62. Stock symbol for National Instruments
64. Trigonometric
function equal to the ratio between the side opposite a given angle, and the hypotenuse
65. Antenna
driven element*
66. Singulated piece of IC wafer
67. Enhanced Graphics Adapter
68. CDMA Development
Group (abbr.)
69. A common RS-232 serial bus command (abbr.)
71. High gain, directional antenna
type*
73. Chemical symbol for thallium
76. Local Oscillator (abbr.)
79. Unit of inductance
(abbr.)
80. Output intercept point (abbr.)
81. 36 in. (abbr., pl.)
82. Intermodulation distortion
(abbr.)
84. Filter type that blocks upper frequencies (abbr.)
85. Decimeter (abbr.)
89. Chemical
symbol for gadolinium
91. Analog-to-Digital (abbr.)
92. Intel 8086 or Motorola 6800 (abbr.)
93. Amateur Radio Association (abbr.)
94. Equalizer (abbr.)
95. Type of current
97. Large unit
of apparent power (abbr.)
99. U.S. Spectrum allocation agency
101. Semiconductor and calculator
company (abbr.)
102. Network department (abbr.)
103. Type of matrix barcode used with laser scanning(abbr.)
104. 10E1 numerical prefix
105. Unix, Linux or Windows (abbr.)
106. Greek letter |
See solution below
 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.
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