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Ham Radio Theme Crossword Puzzle
September 18th, 2022

This September 18th custom made crossword puzzle has an Amateur Radio (aka Ham Radio) theme, compliments of RF Cafe. Clues specifically related to the Ham Radio theme are marked with an asterisk (*). 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 puzzle 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 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

Ham Radio Theme Crossword Puzzle for September 18th, 2022 - RF Cafe

1. Intentionally blocks communications signals
5. 1/12th of a year
8. Low altitude earth orbit
12. Join a male and a female connector
14. Centimeter (abbr.)
15. Modulation type (abbr.)
17. Cause a voltage or current waveform to gradually die out
19. Russian space probes which visited Halley's comet
20. Emitted a flash during electrical discharge
21. 102 Across + 104 Across + _____, founder of the ARRL *
22. European Telecommunications Standards Institute (abbr.)
24. Network department (abbr.)
25. Chemical symbol for rubidium
26. Opposite of USB
27. ARRL's magazine *
28. Abbreviation for peak voltage
29. Chemical symbol for thulium
31. 1.602E-19 Joules
32. Chemical symbol for lutetium
33. Type of component package (abbr.)
35. Start frequency (abbr.)
36. Logarithmic ratio (abbr.)
38. Infrared (abbr.)
39. Intermodulation distortion (abbr.)
40. Device use to send Morse code
41. Step-up type voltage regulator (pl.)
44. Google, Yahoo, Bing, etc.
46. CB slang for "best regards"
49. System for guiding aircraft (abbr.)
51. Akin to an EE, CE, AE, etc.
52. Local Oscillator (abbr.)
53. Finite-Element Model
54. IC socket type for easy insertion & removal (abbr.)
56. Parts per million (abbr.)
58. Type of Morse code key *
59. Samuel's system of dit's and dah's (2 wds.) *
60. 1000 ohms
61. Attenuator
64. Digital storage oscilloscope (abbr.)
66. A gaseous process that deposits insulating films or metal onto a wafer at elevated temperature (abbr.)
68. Radio signals from the cosmos (abbr.)
70. Chemical symbol for praseodymium
71. Ham radio abbreviation for naturally occurring noise or interference
75. Heat required to change a solid into a liquid or a liquid into a gas without change of temperature
77. Lines extending out from center
78. ______ Associates, an RF design seminar company
80. Virtual Private Network
82. Semiconductor On Insulator (abbr.)
84. Chemical symbol for arsenic
85. Unit of frequency (archaic, abbr.)
86. Unix, Linux or Windows (abbr.)
87. Chemical symbol for cobalt
89. Chemical symbol for platinum
90. Schema for computer or device presentation to the operator (abbr.)
91. BS__ - the degree held by many RF Cafe visitors
93. Unit of frequency (archaic, abbr.)
94. A gaseous process that deposits insulating films or metal onto a wafer at elevated temperature (abbr.)
96. Electronic component package type (abbr.)
98. Network department (abbr.)
100. ________ _____ - Degrees of separation between two lines meeting at a common vertex (2 wds., abbr.)
101. RF computer network
102. _____ + 104 Across + 21 Across, founder of the ARRL *
104. 102 Across + _____ + 21 Across, founder of the ARRL *
105. Ham radio organization (abbr.)
106. Electronic Variable Optical Attenuator (abbr.)
108. Read-only (abbr.)
109. Chemical symbol for lawrencium
110. Longitudinal shape-forming structural element
112. Amateur Radio Emergency Service (abbr.)
113. Describes when a synchronous motor loses phase lock (pl.)
114. Last keyword in a BASIC subroutine (pl.)
2. Hams *
3. 1/000 of an amp (abbr.)
4. Network configuration type
5. Multichannel multipoint distribution service
6. Negation prefix
7. Amateur radio operators *
8. Light
9. Electromagnetic (abbr.)
10. Another name for 2 Down *
11. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr., pl.) *
13. Its chemical symbol is Er
14. Wireless phone regions
16. Joins a male and a female connector
17. Split power into 2 or more paths
18. ARRL's magazine *
19. Form of digital encoding
23. Apply (as a voltage)
30. He, along with his brother Wilbur, flew the 1st self-powered aircraft flight
32. Parts _____
34. Search for data (slang)
35. Gasoline, diesel, etc.
37. 8 bits
42. Substance that removes electrons from another reactant
43. Chemical symbol for tantalum
44. _______ + RF Systems, RF amplifier maker in Inglewood, CA
45. Attaches components to a PCB
47. 1/100 meter (abbr.)
48. Lays bare, such as a wire
50. Chemical symbol for cadmium
53. Small unit of capacitance (abbr.)
54. Hit a component with an electrostatic discharge
55. Frequency Division Duplex
56. Programmable Logic Device (abbr.)
57. Unit of admittance
62. Chemical symbol for neodymium
63. JavaScript (abbr.)
65. Beaver's last name
66. Cyanide (abbr.)
67. Vacuum Tube Voltmeter (abbr.)
69. Transformer interwinding connections
70. Type of programmable device (abbr.)
72. Amplifier vendor in Palm Bay, FL, now part of Spectrum Microwave
73. Chemical symbol for neon
74. Probable location of an element's electron
76. The "E" in VEC *
79. IEEE802.11, FCC Part 15, or MIL-STD-202, for example
81. PC Card - with 68 pin interface
83. Science of light transmission
86. Amateur radio satellite series *
88. The highest numerical exponent describes this property of a polynomial
92. Voltage-current phase mnemonic
93. Unit of admittance (pl.)
95. Vertical Metal Oxide Semiconductor
97. Multiprotocol Label Switching (abbr.)
99. Enter data using the keyboard
100. International Reply Coupon (abbr.)
103. Ticker symbol for Analog Devices
107. Amateur radio operator who is qualified to administer Amateur Radio licensing examinations (abbr.)
111. Army-Navy specification prefix

See solution below


2022 Crosswords Archive

Visit the Crossword Express website - RF CafeTake 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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Ham Radio Theme Crossword Puzzle Solution for September 18th, 2022 - RF Cafe

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    Kirt Blattenberger,


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 nice lady's voice announced "You've Got Mail" when a new message arrived...

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