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Take a break from the drudgery by trying your hand at some of these goodies.
Every word in the RF Cafe crossword puzzle contains the usual collection of science,
math, and engineering terms, and also includes special words related to Amateur
Radio (clues labeled with asterisk *). 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. You might, however, find someone
or something in the otherwise excluded list directly related to this puzzle's technology
theme, such as Hedy Lamarr or the Bikini Atoll, respectively. 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. * Next level of Amateur Radio license after Technician
5. * The 'A' in ARRL
9. Circular mounting hardware (pl.)
11. Unit for 1,000,000
watt-seconds (abbr.)
12. Measure of source / load mismatch (abbr.)
14. * Mechanical
device for sending Morse Code
17. 1E6 nanoseconds
18. Electromagnetic interference
(abbr.)
19. Heat-resistant glass type
20. A common RS-232 serial bus command
(abbr.)
22. Web's most popular radio frequency engineering site (2 ltrs. + 1
wd.)
25. Quantum of vibrational energy
27. Local Oscillator (abbr.)
28.
One port of an amplifier
29. Science of assuring operation amid dense EM background
noise (abbr.)
30. Chemical symbol for holmium
31. Type of flip-flop
32.
Chemical symbol for gallium
34. Logarithmic ratio (abbr.)
36. Opposite of
O.D.
38. Centimeter (abbr.)
40. PC follower
41. One port of an amplifier
42. Coder/decoder (abbr.)
43. * Ham's code for "Is my transmission being interfered
with?"
44. International phonetic alphabet letter "H"
45. Intel x86 command
for " jump if above"
48. 30 kHz to 300 kHz
50. Chemical symbol for antimony
51. Sound frequency in the human hearing range (abbr.)
52. "Calling any amateur
radio station"
54. Modulation type (abbr.)
55. Chemical symbol for lanthanum
57. Unit of liquid measure (abbr.)
58. Electronic component package type (abbr.)
59. Unit of time (abbr.)
61. PC follower
62. * The 'L' in ARRL
64. Configured
a switch to break electrical contact
67. A common battery cell size
68. *
Hiram Percy _____, founder of the ARRL
69. Logic family
70. Boob tube (abbr.)
71. Synchronous Digital Hierarchy
73. * Ham's code for "Are you busy?"
74.
1/000 of an amp (abbr.)
76. Aircraft bulkhead (pl.)
80. * Type of Morse Code
key (pl.)
81. Akin to dynamics, with no movement |
1. Software role playing type
2. Chemical symbol
for neon
3. The Microwave Office software company (abbr.)
4. Chemical symbol
for lanthanum
5. Chemical symbol for argon
6. Minimal Shift Keying (abbr.)
7. Chemical symbol for europium
8. The stuff in the solder core
10. * Founder
of the ARRL (3 wds.)
12. Miniature threaded RF connector
13. Refers to the
IEEE802.11 networks (abbr.)
15. Name for a reflected radar signal
16. Elemental
compound used for microwave frequency reference oscillators (abbr.)
18. Engineering
Change Order (abbr.)
21. Signal-to-noise ratio (abbr.)
23. Conductor type
for parallel buse interconnections (2 wds.)
24. Last statement in a BASIC program
25. It can follow an MS
26. Generate a periodic signal
32. Chemical symbol
for gallium
33. * The "R" in ARRL
35. Chemical symbol for bromine
36. Band
between RF and BB
37. * Next level of Amateur Radio license after General
39. Chemical symbol for manganese
45. JavaScript (abbr.)
46. 300 kHz to 3
MHz
47. A BPF specification (abbr.)
49. Type of modulation (abbr.)
51.
Automated Test Equipment (abbr.)
53. * Ham's code for "Station is leaving the
net."
56. A common battery cell size
57. Type of antenna with four-sided loops
60. Longitudinal shape-forming structural element
61. Antenna (abbr.)
62.
Period of reduced production
63. One state of matter
65. High-speed logic
family
66. Trigger diode that conducts current only after its breakdown voltage
has been exceeded momentarily (pl.)
72. RF & microwaves magazine founded
by Gary Breed, now Summit Technical Media (abbr.)
73. * ARRL's magazine
75.
Chemical symbol for gadolinium
77. Unix, Linux or Windows (abbr.)
78. Type
of flip-flop
79. Opposite of a LO |
See solution below
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