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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

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...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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Windfreak Technologies Frequency Synthesizers - RF Cafe

Wireless Theme Crossword Puzzle
May 2, 2021

This Wireless Theme Crossword Puzzle for May 2nd has many words and clues related to RF, microwave, and mm-wave engineering, optics, mathematics, chemistry, physics, and other technical subjects. 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

Wireless Theme Crossword Puzzle for May 2nd, 2021 - RF Cafe

ACROSS DOWN
1. Rms current times rms voltage (2 wds.)
10. Ticker symbol for Analog Devices
11. Consequence of under sampling
12. 300 MHz to 3 GHz
14. Schematic label for voltage supply node
17. Network file transfer protocol (abbr.)
18. Curly-Q type light bulb (abbr.)
20. On a waveform, a _____ min or max
21. Tied a bundle of wires together
23. End of transmission (abbr.)
24. milliampere-hour (abbr.)
26. Radio Direction Finding (abbr.)
28. Modern battlefield technique (abbr.)
29. Chemical symbol for einsteinium
30. Automated Test Equipment (abbr.)
31. Chemical symbol for europium
33. Chemical symbol for selenium
34. PC follower
35. Length times width (pl.)
37. 300 Hz to 3 kHz in audio (abbr.)
39. Chemical symbol for chromium
40. RF connector type
41. Uppermost surface
43. Chemical symbol for radon
45. Unit of time (abbr.)
46. Digital storage oscilloscope (abbr.)
47. Electronics Industry Association (abbr.)
48. Schema for computer or device presentation to the operator (abbr.)
49. Length times width
51. Association of North American Radio Clubs
53. High-speed multimedia (abbr.)
55. 10E-2 numerical prefix
57. Precision landing system (abbr.)
58. Radio signal route (pl.)
59. Small representative graphic
61. International phonetic alphabet letter "Z"
62. Coordinated Universal Time (abbr.)
64. Akin to EEs, CEs, AEs, etc. (abbr., pl.)
67. Chemical symbol for silicon
68. Coefficient of temperature (abbr.)
70. Chemical symbol for chlorine
72. Unit of frequency (archaic, abbr.)
73. Instrument for measuring potential difference using a taut band indicator (2 wds.)
1. Analog-to-Digital (abbr.)
2. Point of rotation
3. Chemical symbol for radium
4. 30 Hz to 300 Hz
5. Type of aircraft dope
6. Transformer interwinding connection
7. Unit of time (abbr.)
8. Swiss mathematician who extensively studied complex numbers
9. Chemical symbol for rhodium
10. Sound frequency in the human hearing range (abbr.)
13. Small unit of capacitance (abbr.)
15. Unit of volume (abbr.)
16. Common shorthand reference for a capacitor (pl.)
18. RF ____, the world's best engineering website
19. A BPF specification (abbr.)
20. The "L" in VLF
22. Direct Digital Synthesis (abbr.)
23. BS__ - the degree held by many RF Cafe visitors
24. Father of radio
25. Vacuum tube element that causes free electrons for current flow (pl.)
27. Chemical symbol for iron
29. Radio signals from the cosmos (abbr.)
32. PCB mask exposing ray (abbr.)
34. The "As" in GaAs
35. Most protruding part of planetary rings as seen from distance
36. Small DIP package (abbr.)
38. Portion of a cone which remains when its upper part has been cut off by a plane parallel to its base
39. Chemically react to harden
40. Time delay (abbr.)
42. Last stage in a transmitter (abbr.)
44. Battery cell chemistry type (abbr.)
49. Type of current flow (abbr.)
50. System for guiding aircraft (abbr.)
52. Fraction of incident light or radiation reflected by a surface or body
53. The computer in 2001: A Space Odyssey
54. 1E6 nanoseconds
56. Galilean moon
58. Chemical symbol for plutonium
60. Chemical symbol for neodymium
61. Chemical symbol for zinc
62. Country of RF Cafe's residency
63. Chemical element abbreviated Sn
65. Using the Earth's natural satellite as a passive reflector to establish an RF signal path (abbr.)
66. Special diode type that can be switched (abbr.)
68. Chemical symbol for thallium
69. Chemical symbol for cobalt
70. Centimeter (abbr.)
71. Front edge of a wing (abbr.)

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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December 12

December 5

November 28

November 21

November 14

November 7

October 31

October 24

October 17

October 10

October 3

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August 29

August 22

August 15

August 8

August 1

July 25

July 18

July 11

July 4

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April 18

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April 4

March 28

March 21

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February 21

February 14

February 7

January 31

January 24

January 17

January 10

January 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wireless Theme Crossword Solution for May 2nd, 2021 - RF Cafe

Triad RF Systems Amplifiers - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs
 

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