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Amateur Radio Crossword Puzzle
January 25, 2015

This is likely the last engineering-themed crossword puzzle that I will be creating. It takes about an hour to make and publish each one, and since I suspect the number of dedicated cruciverbalists out there are few, it is just not worth the effort anymore. Without any memorable exceptions, I have created a crossword puzzle every week since sometime in the year 2000 (more than 700 total). Each one was made with personally selected words to avoid non-relevant terms and clues. The puzzles will resume if enough requests come in to do so, otherwise, today marks the end of an era.

I will still be glad to create a special edition crossword for your newspaper, newsletter, etc.


Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

2015 Crosswords Archive
Visit the Crossword Express website - RF CafeTake a break from the drudgery by trying 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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December 6
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November 1
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August 16
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July 26
July 19
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February 8
January 25
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January 4

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.

Amateur Radio Crossword Puzzle for January 25, 2015 - RF Cafe


1. Miniature RF connector
4. Photoshop and Dreamweaver company
8. 8 GHz to 12.5 GHz
12. Coordinated Universal Time (abbr.)
15. A keyboard key
17. Chemical symbol for beryllium oxide
18. International Telecommunications Union
19. Java server pages (abbr.)
21. With 38 Across, part of this website's title
23. Greek letter
25. Unit of admittance
27. Flash caused by an electric current ionizing a gas or vapor
28. A common battery cell size
29. Stock symbol for Boeing
30. Anatech Electronics, Inc. (abbr.)
32. High speed data over telephone lines (abbr.)
34. Part of this website's title
35. Chemical symbol for neodymium
36. Time Division Multiplexing
37. The system than converts common website names to IP addresses (abbr.)
38. With 21 Across, part of this website's title
39. The UK's largest defense electronics contractor (abbr.)
41. Cellphone band below PCS
42. Miniature RF connector
43. Digital Enhanced Cordless Telephone
45. Person responsible for program spending (abbr.)
46. File name extension for an ASCII file
48. Mr. Lenz's first name
49. Receiver/transmitter that listens for a transmission and re-transmits it
50. Type of logic gate (pl.)
52. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
53. Isolator or circulator ferrous component
56. Direct Digital Synthesis (abbr.)
58. Personal Digital Cellular
59. Ham abbreviation indicating contacts with all major land masses
62. Type of high frequency circuit substrate (abbr.)
65. It can follow an MS
66. Big Blue
67. Chemical symbol for lithium
68. Amateur radio abbreviation for the Oceania region (abbr.)
70. Ground fault interrupter (abbr.)
72. Colorado Springs military school (abbr.)
73. 1.602E-19 Joules
74. Bands between RF and baseband
75. Deutsche Industrie Normenausschuss
76. Special diode type that can be switched (abbr.)
78. Stock symbol for Lockheed Martin
80. Chemical symbol for manganese
81. Powers pneumatic devices
82. Transmit Incremental Tuning (abbr.)
83. Type of data conversion device (abbr.)
85. 3 GHz to 30 GHz
87. High Data Rate
88. Prefix meaning "to squeeze"
89. International phonetic alphabet letter "O"
90. One system's phonetic letter "z"
2. Akin to an EE, CE, AE, etc.
3. Base Station Transceivers (abbr.)
5. Logarithmic ratio (abbr.)
6. Original Equipment Manufacturer (abbr.)
7. Inventor of the pre-quantum atomic model
9. Nickname given to a satellite
10. System for guiding aircraft (abbr.)
11. Greek letter used for frequency
12. Country of RF Cafe's residency
13. Test point (abbr.)
14. Female U.S. Naval admiral who coined the term "bug" for software problems (2 wds.)
16. Software drafting tool (abbr.)
19. Intentionally block communications signals
20. Electron beam pattern method used in CRTs (2 wds., pl.)
22. Finite Element Analysis (abbr.)
24. Upper Sideband (abbr.)
26. Orthogonal frequency-division multiplexing (abbr.)
27. Most protruding part of planetary rings as seen from distance
28. Type of data conversion device (abbr.)
29. Low- to mid- frequency RF connector
31. Band between RF and BB
33. Chemical symbol for lanthanum
36. Chemical symbol for thulium
37. Morse Code for "from"
40. Reflected radar or sonar signal (pl.)
42. Threaded fastener
44. Ham's code for "Are your receiving me badly?"
47. Term used in soldering to achieve the condition that occurs when the metals being soldered are hot enough to melt the solder so it flows over the surface
51. Quantum electron property
52. Official engineering change document (abbr., pl.)
54. Ultra High Voltage (abbr.)
55. Chemical symbol for cadmium
56. Logarithmic unit of ratio (abbr., pl.)
57. Decimeter (abbr.)
60. Chemical symbol for silver
61. Curly-Q type light bulb (abbr.)
63. Chemical symbol for tantalum
64. Airflow rate (abbr.)
66. Discipline for aircraft navigation in low visibility environments (abbr.)
67. Type of wire used to wind baluns and couplers
69. Imaging device (abbr., pl.)
71. International Microwave Symposium (abbr.)
74. Type of digital filter (abbr.)
75. Singulated piece of IC wafer
77. Radio Amateurs of Canada (abbr.)
79. Unit of frequency
81. Analog-to-Digital (abbr.)
82. Greek letter
84. Chemical symbol for calcium
86. Chemical symbol for iron

See solution below


















Amateur Radio Crossword Puzzle Solution for January 25, 2015 - RF Cafe

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