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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...

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RF Engineering Theme Crossword Puzzle
March 7, 2021

This RF Engineering Crossword Puzzle for March 7th has many words and clues related to... you guessed it... RF engineering - and mathematics, chemistry, physics, and other technical words. 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., Hedy Lamarr or the Bikini Atoll). 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

RF Engineering Theme Crossword Puzzle for March 7th, 2021 - RF Cafe

ACROSS DOWN
2. A metal that is liquid at room temperature
6. The "M" in ISM
11. Permeability-tuned oscillator (abbr.)
13. RF connector type
14. Switch position
15. Instrument for measuring current
19. Chemical symbol for ruthenium
20. Straight line emanating from a point source
23. Rádio Nacional de Angola (abbr.)
24. High-speed logic family
26. Current-voltage phase mnemonic
28. Determined cause and effect
30. Greek letter
33. Time relative to the fixed background of stars
35. Crystal filter type (abbr.)
36. Wireless phone regions
38. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)
40. Total Access Communication System (abbr.)
41. Increase voltage linearly
43. Ham abbreviation indicating contacts with all major land masses
45. Modulation technique that varies the width of pulses in a train (abbr.)
47. Chemical element abbreviated Sn
48. Programmable logic device (abbr.)
49. Material used in the center of an inductor coil
51. Electromagnetic (abbr.)
53. __ + 54 Across, the world's greatest engineering website
54. 53 Across + ____, the world's greatest engineering website
56. ___/IP scheme for networked connectivity
57. Unit of heat
58. Encased in a protective covering
59. Electromagnetic (abbr.)
61. Chemical symbol for tin
62. Solid state power amplifier (abbr.)
64. Type of logic gate
65. Type of data storage IC
67. Device under test (abbr.)
68. Notch type filter (abbr.)
69. Institute of Electrical and Electronics Engineers
71. Its chemical symbol is Fe
72. MS's server-side script engine for dynamically-generated web pages (abbr.)
75. Its chemical symbol is Rn
78. Bits per second (abbr.)
80. Type of rock salt crystal used in radio
84. File name extension for an ASCII file
85. Determination of cause and effect
88. Automatic Calibration System (abbr.)
89. U.S. Spectrum allocation agency
91. Test document for verifying proper function (abbr.)
92. Temporary Engineering Change document (abbr.)
93. Chemical symbol for radon
95. Use a DMM or o-scope
97. Unit of volume (abbr.)
98. Shorthand for liquid oxygen
100. Intel 8086 or Motorola 6800 (abbr.)
101. The sum is greater than the parts
102. Sampling rate pioneer
1. Signals that are just above the frequency range of human hearing of approximately 20 kHz
3. 2-part adhesive
4. Stock symbol for Raytheon
5. Chemical symbol for cobalt
7. Network department (abbr.)
8. Carrier-to-noise ratio (abbr.)
9. An angle that has less than 90 degrees
10. Change velocity
12. Electronics manufacturer with "meatball" logo
15. Type of logic gate
16. 1/000 of an amp (abbr.)
17. BS__ - the degree held by many RF Cafe visitors
18. Effective frontal area presented to a microwave interrogation system (abbr.)
21. Automatic network analyzer (abbr.)
22. Rotate about the vertical axis
23. One component of a complex number (abbr.)
25. Chemical symbol for lithium
26. U.K. equivalent of the IEEE
27. Person responsible for program spending (abbr.)
29. Difference in voltage between the surface of the diffuse layer surrounding a colloidal particle and the bulk liquid beyond (2 wds.)
30. Test equipment (abbr.)
31. Brightest star in the Aquila constellation
32. Electrical safety organization (abbr.)
34. 2-element, 1/2 wavelength radiating structure fed at the center (2 wds.)
36. Chemical symbol for cesium
37. Chemical symbol for strontium
39. Metallic outer wrapper used to contain or reject RF signals
42. Which property of a fluid determines its rate of flow
43. Weight (abbr.)
44. Cyanide (abbr.)
46. Metric length unit
48. Fifth series in the spectrum of hydrogen
50. Lubricant
52. Wire diameter unit (abbr.)
53. A common RS-232 serial bus command (abbr.)
55. Network file transfer protocol (abbr.)
58. IC that tests for equal values
60. Unit of capacitance (pl.)
63. (Repeater Term) A code to activate a repeater function e.g. auto patch, link etc. (2 wds.)
65. Chemical symbol for rubidium
66. 300 kHz to 3 MHz
70. Chemical symbol for erbium
71. One port of an amplifier
73. System On Chip
74. Cellphone band directly above DCS
76. A common battery cell size
77. Amateur radio abbreviation for the Oceania region (abbr.)
78. Base Station Transceivers (abbr.)
79. Type of chart
81. Effect (named after its discoverer) that is the variation in the width of the base in a BJT due to a variation in the applied base-to-collector
82. 30 kHz to 300 kHz
83. Electronic warfare defense (abbr.)
85. Automated Test Equipment (abbr.)
86. Chemical symbol for neptunium
87. Curve formed by a point which moves according to a mathematically defined rule
90. European equivalent to the U.L.
91. Chemical symbol for argon
94. Negation prefix
96. Chemical symbol for selenium
97. Printer output resolution unit (abbr.)
99. Chemical symbol for xenon
100. Chemical symbol for copper

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 26

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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

September 26

September 19

September 12

September 5

August 29

August 22

August 15

August 8

August 1

July 25

July 18

July 11

July 4

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June 13

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May 30

May 23

May 16

May 9

May 2

April 25

April 18

April 11

April 4

March 28

March 21

March 14

March 7

February 28

February 21

February 14

February 7

January 31

January 24

January 17

January 10

January 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF Engineering Theme Crossword Puzzle Solution forMarch 7th, 2021 - RF Cafe

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