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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    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 Theme Crossword Puzzle
May 9, 2021

This Radio Theme Crossword Puzzle for May 9th has many words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. Also, it contains at least six (6) instances of this puzzle's theme word. As always, this crossword 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

Radio Theme Crossword Puzzle for May 9th, 2021 - RF Cafe

1. Connected to a transformer interwinding point
5. Apple's popular cellular communications device
10. One port on a BJT (pl.)
19. Filter type that blocks lower frequencies (abbr.)
20. Galilean moon
22. RF engineer's degree
23. Compliment to a pole in a transfer function
24. Communication type that method makes use of electromagnetic waves
26. Modern battlefield technique (abbr.)
28. Change from a "1" to a "0"
32. Unit of length (abbr.)
33. Electronics manufacturer with "meatball" logo
34. Type of flip-flop
36. Nuclear explosion byproduct harmful to electronics (abbr.)
37. 10E1 numerical prefix
38. Type of logic gate
40. Chemical symbol for polonium
41. Angular speed unit
43. WWW browser
47. Largest broadcaster in the UK (abbr.)
48. Sound frequency in the human hearing range (abbr.)
50. Similar to a laser, but at lower frequencies
53. Like RFCafe.com (2 wds.)
55. Isolator or circulator ferrous component
56. Keyboard key
57. Alloy of iron and low percentages of carbon, manganese, chromium, etc.
59. Chemical symbol for nickel
60. Transitioned from solid to liquid phase
62. Multifunctional silicon devices (abbr.)
63. A common RS-232 serial bus command (abbr.)
64. Half of a DIP
66. Rechargeable battery type (abbr., pl.)
71. Input intercept point (abbr.)
72. Chemical symbol for platinum
73. Constellation : The lion
75. Person responsible for program spending (abbr.)
76. One half of a circle
78. Silicon transistor type
79. Radio Amateurs of Canada (abbr.)
80. Unix, Linux or Windows (abbr.)
81. Type of logic gate
82. Typical bandwidth of a directional coupler
83. Type of computer display (abbr.)
84. Period between radar transmitter's output waveform (abbr.)
85. Chemical symbol for radium
86. Circuit configuration whereby all current from a source flows through a single path
88. Home state of Los Alamos lab (abbr.)
90. Communication type that method makes use of electromagnetic waves
92. Electronic component package type (abbr.)
93. 10E-1 numerical prefix
95. Generates a periodic signal
100. Things in a bill of material
102. Chemical symbol for silicon
103. Type of digital filter (abbr.)
105. Emits electromagnetic energy
106. Ham's code for "Is my transmission being interfered with?"
107. Amateur radio abbreviation for the Oceania region (abbr.)
109. One port of an amplifier
111. 1e-6 mA
112. Singulated piece of IC wafer
114. One component of a complex number (abbr.)
115. Chemical symbol for erbium
116. A BPF specification (abbr.)
117. Nuclear reaction that powers both the sun and a hydrogen bomb
121. Chemical symbol for iron
122. Communication type that method makes use of electromagnetic waves
124. Adjacent Channel Power Ratio (abbr.)
127. One type of electron spin
129. Network department (abbr.)
130. Coefficient of temperature (abbr.)
132. Plane figure that has four straight sides, and four right angles (pl.)
133. Unit of capacitance (pl.)
134. Radio navigation reference signal
2. ampere-hour (abbr.)
3. Computer monitor resolution measure (abbr.)
4. Singulated piece of IC wafer
6. Chemical symbol for lead
7. High-speed multimedia (abbr.)
8. Original Equipment Manufacturer (abbr.)
9. Chemical symbol for neon
10. European equivalent to the U.L.
11. Type of logic gate
12. Long Range Aid to Navigation
13. Chemical symbol for erbium
14. Software engineering tool (abbr.)
15. Time Division Multiple Access
16. Output intercept point (abbr.)
17. Read-only (abbr.)
18. Inserting an inductor at the center of an antenna to achieve a lower resonant frequency (2 wds.)
21. Type of logic gate
23. 6th Greek letter
25. A Network of automated packet radio stations for disseminating DX and contest reports (2 wds.)
27. Write-Once (abbr.)
29. Chemical symbol for neptunium
30. Volt-ohmmeter (abbr.)
31. Technical drawing structure
33. Constellation : The twins
35. Send junk e-mail
37. Relative power level unit (abbr.)
39. Communication type that method makes use of electromagnetic waves
42. A digital counter input line to establish an initial value
43. Negation prefix
44. Chemical symbol for silicon
45. Cyanide (abbr.)
46. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
47. Manufacturer of project boxes
49. Method of self-detection and self-fixing transmission of digital data (abbr.)
51. Material testing organization (abbr.)
52. Official Space Shuttle designation (abbr.)
54. Type of high-tech data gathering system (abbr.)
55. Peak envelope power (abbr.)
58. International phonetic alphabet letter "L"
61. End of soldering iron
63. Communication type that method makes use of electromagnetic waves
65. Peak Inverse Voltage
67. International Reply Coupon (abbr.)
68. Co-channel rejection ratio (abbr.)
69. Brightest star in the Aquila constellation
70. Morse Code for "from"
72. Last stage in a transmitter (abbr.)
74. Chemical symbol for einsteinium
75. Carrier-to-noise ratio (abbr.)
76. Chemical symbol for scandium
77. Middle
78. Type of data storage IC (abbr.)
79. Communication type that method makes use of electromagnetic waves
81. Anatech Electronics Inc., (abbr.)
82. International phonetic alphabet letter "O"
84. Type of chart
85. Common average used for sinewaves (abbr.)
86. Special diode type that can be switched (abbr.)
87. Resistive component of a capacitor's lumped element model (abbr.)
89. Akin to EEs, CEs, AEs, etc. (abbr., pl.)
91. Dual Tone Multi-Frequency
94. Electronics Industry Association (abbr.)
96. Theoretical
97. Chemical symbol for lithium
98. Chemical symbol for lanthanum
99. Automatic Testing, Evaluation & Reporting (abbr.)
101. Semiconductor On Insulator (abbr.)
104. This calculus operation yields voltage across a capacitor
106. Organization requiring 25 years of amateur service for membership, abbr.
108. Chemical symbol for cobalt
110. Unit of capacitance (abbr.)
112. Type of data conversion device (abbr.)
113. Electronics Industry Association (abbr.)
116. BASIC looping keyword
118. Schema for computer or device presentation to the operator (abbr.)
119. Half of DSB
120. Negative temperature coefficient (abbr.)
122. One component of a complex number (abbr.)
123. Switch position
125. European equivalent to the U.L.
126. Unit of time (abbr.)
127. 10E1 numerical prefix
128. Chemical symbol for neodymium
131. Chemical symbol for cobalt

See solution below


2021 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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Radio Theme Crossword Solution for May 9th, 2021 - RF Cafe

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