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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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Radio Engineering Radio Crossword Puzzle
July 26, 2020

July 26th's custom Radio Engineering crossword puzzle contains some words particular to radio, radar, analog and digital circuits, components, and other tech-themed words and clues. Each week for two decades I have created a new technology-themed crossword puzzle using only words (1,000s of them) from my custom-created lexicon related to engineering, science, mathematics, chemistry, physics, astronomy, etc. You will never find among the words names of politicians, mountain ranges, exotic foods or plants, movie stars, or anything of the sort. 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. Avid cruciverbalists amongst us: the gauntlet has been thrown down.

cruciverbalist: [noun]  cruci- ("cross") +‎ verbal ("words") +‎ -ist ("agent, person") -- A person who constructs crosswords.

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

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

Radio Engineering Crossword Puzzle for July 26, 2020 - RF Cafe


1. Small Office/Home Office (abbr.)
3. Logical negation (pl.)
6. Ovenized crystal oscillator (abbr.)
7. Heterojunction Bipolar Transistor
10. U.S. military organization (abbr.)
12. Unit of time (abbr.)
13. Satellite milieu
14. Band between RF and BB
15. Test equipment (abbr.)
17. Ham's code for "Shall I decrease power?"
19. Chemical symbol for chlorine
20. Gun safety and education organization (abbr.)
22. Type of logic gate
24. Its chemical symbol is Pd
25. Nordic Mobile Telephone
26. Rádio Nacional de Angola (abbr.)
27. Type of component package (abbr.)
29. Lowest power level capable of being demodulated (abbr.)
31. Electrical safety organization (abbr.)
32. Radio signals from the cosmos (abbr.)
33. Subatomic particle having a mass between that of an electron and a proton
34. Chemical symbol for molybdenum
35. Decibels above or below a dipole antenna (abbr.)
37. Network file transfer protocol (abbr.)
38. Part of an optical cable bundle
41. Weatherproof cover for a radar antenna (pl.)
44. Stock symbol for National Instruments
45. Erbium Doped Fiber Amplifier (abbr.)
46. Calculus operation yielding current through an inductor
49. International Amateur Radio Union (abbr.)
53. Greek letter used for coefficient of reflection
54. Logic gates
56. Flash caused by an electric current ionizing a gas or vapor
57. Greek letter
59. 10E1 numerical prefix
60. A simple machine
65. Chemical symbol for thulium
66. Chemical symbol for dysprosium


1. Society of Civil and Structural Engineers (abbr.)
2. Shorthand for oxygen
4. Time delay (abbr.)
5. Small DIP package (abbr.)
6. Released volatile products from a liquid coating such as paint
7. Stock symbol for Hewlett Packard
8. Star with the largest proper motion
9. ___/IP scheme for networked connectivity
11. Digital circuit type for making counters (1 ltr, 2 wds.)
16. A complete set of data bits in a stream
18. Balun with both ports unbalanced (pl.)
20. Silicon transistor type (abbr.)
21. ___-AZIMUTH telescope mount
22. Powers pneumatic devices
23. Direct Memory Access (abbr.)
28. Reliability measure (abbr.)
29. A property of memristors
30. Tool used to attach electronic components to a PCB (2 wds.)
31. Universal Mobile Telecommunications System
36. Deutsche Industrie Normenausschuss
37. Finite Element Analysis (abbr.)
39. Stock symbol for Boeing
40. Radio signals from the cosmos (abbr.)
42. Opposite of I.D.
43. 300 kHz to 3 MHz
46. Type of data conversion device (abbr.)
47. Abbreviation for minimum voltage
48. Decimeter (abbr.)
50. A common battery cell size
51. Chemical symbol for radon
52. User Datagram Protocol
53. Color code for "9"
55. Slow-scan television (abbr.)
56. Acts of summation
58. A number that is the square root of a negative number
60. International Telecommunications Union
61. Unit of inductance (abbr.)
62. Sample group
63. On-the-air meeting of hams at a set time, day and radio frequency (pl.)
64. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
69. Greek letter
71. 3 GHz to 30 GHz
72. Thing in a bill of material
73. Rechargeable battery type (abbr.)
76. BlackBerry or Palm for example (abbr.)
77. Commercial Off-the-Shelf
78. High Data Rate
80. Cause the temperature to drop
82. Keyboard key
83. Chemical symbol for europium
84. Termination
89. Chemical symbol for copper
91. Front edge of a wing (abbr.)



ACROSS (con't)

67. A statement that has been proven on the basis of previously established statements
68. Unit of apparent power (abbr.)
69. Chemical symbol for ruthenium70. Electronic assembly transport container (pl.)
72. One port of an amplifier
74. Unit of time (abbr.)
75. Regarding light
78. 3 MHz to 30 MHz
79. Amateur radio abbreviation for the Oceania region (abbr.)
81. Interpreted encoded data
84. Chemical symbol for lanthanum
85. Chemical symbol for nobelium
86. Ham radio operator
87. Type of logic gate
88. System On Chip
90. Type of high speed Internet service (abbr.)
91. Direction of carbon fiber strands
92. Cable termination type (pl.)
93. Used logic gates

See solution below

2020 Crossword Puzzle 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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Radio Engineering Crossword Solution for July 26, 2020 - RF Cafe

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