RF Cafe Engineering & Science Crossword Puzzle
March 17, 2019

This very large crossword puzzle will keep you busy for a while. Since 2000, I have been creating custom technology-themed crossword puzzles for the brain-exercising benefit and pleasure of RF Cafe visitors who are fellow cruciverbalists. The jury is out on whether or not this type of mental challenge helps keep your gray matter from atrophying in old age, but it certainly helps maintain your vocabulary and cognitive skills at all ages. A database of thousands of words has been built up over the years and contains only clues and terms associated with engineering, science, physical, astronomy, mathematics, chemistry, etc. You will never find a word taxing your knowledge of a numbnut soap opera star or the name of some obscure village in the Andes mountains. You might, however, encounter the name of a movie star like Hedy Lamarr or a geographical location like Tunguska, Russia, for reasons which, if you don't already know, might surprise you.

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


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

acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

RF Cafe Engineering & Science Crossword Puzzle March 17, 2019

ACROSS DOWN
1. Curve traced out by a point which moves around another point with an ever increasing radius

5. Structures of columns and rows

10. Advanced Communication Technologies and Services (abbr.)

11. Wire diameter unit (abbr.)

13. Error checking scheme (abbr.)

14. Part of this website's title

15. Parts _____

18. PCB mask exposing ray (abbr.)

20. Total radiated power (abbr.)

22. Commercial Off-the-Shelf

24. Small unit of capacitance (abbr.)

26. Short for potentiometer

27. RF ____, the world's best engineering website

28. Stock symbol for National Semiconductor

29. Stock symbol for Linear Technologies

31. Akin to WAC, only just in America

33. Filter type that blocks frequencies in a specified band (abbr.)

34. Transformer interwinding connection

35. Early computer display screen resolution (abbr.)

36. Chemical symbol for silicon

37. 3 GHz to 30 GHz

39. Transmit Incremental Tuning (abbr.)

40. Chemical symbol for copper

41. Type of chart

42. Radio signals from the cosmos (abbr.)

43. Multichannel multipoint distribution service

45. Newest buzz phrase for ubiquitous remote control and monitoring of everything (abbr.)

48. Unit of time (abbr.)

49. ELI the ICE ___

51. One axis of an ellipse

52. 1.602E-19 Joules

53. Government program to bring electricity to farms (abbr.)

54. Akin to an EE, CE, AE, etc.

55. Anatech Electronics Inc., (abbr.)

56. Chemical symbol for platinum

57. Digital storage oscilloscope (abbr.)

61. Enrico _____, nuclear physicist

63. Ratio of output to input power, voltage, current, light, etc. (pl.)

65. Service of the ARRL that helps hams solve technical problems (abbr.)

67. Adding two or more inputs

69. Fairchild Advanced Schottky TTL (abbr.)

71. Logic family

73. Below ELF

74. Peripheral Component Interface (abbr.)

76. Modem encoding method (abbr.)

78. Unit of resistance

80. Instrument used to observe the corona of the sun

83. _______ Voltage - Lowest input level for which a voltage regulator will produce a predetermined output

84. What is the measure of heat intensity called

87. Deutsche Industrie Normenausschuss

89. Form of digital phase modulation in which the phase of the RF signal depends on the modulating code (abbr.)

91. Amateur Radio Association (abbr.)

92. Finite-Element Model

95. World's largest yearly convention of gadget and device manufacturers (abbr.)

97. Software function selection mechanism

98. Sampling rate pioneer

102. Display type

103. Troubleshooting software

105. International phonetic alphabet letter "I"

108. ELI the ICE ___

109. Electrical safety organization (abbr.)

110. Abbreviation for acknowledge (also a common word used by Bill the Cat)

111. Read-only (abbr.)

112. Test document for verifying proper function (abbr.)

114. One port of an amplifier

116. Retain a charge

117. Miniature threaded RF connector

118. Chemical symbol for gadolinium

120. Agilent's EE design software (abbr.)

122. Software function selection mechanism

124. BS__ - the degree held by many RF Cafe visitors

125. Wireless application protocol (abbr.)

126. Last stage in a transmitter (abbr.)

127. Voice of America

129. Unit of current

131. Chemical symbol for chromium

132. Add two or more inputs

133. Rotate about the vertical axis

134. Chemical symbol for cesium

135. Half of DSB

137. Steady-state voltage reference

139. Push to Talk (abbr.)

140. Integrated Services Digital Network (abbr.)

141. The "L" in VLF

143. Unit of time (abbr.)

144. Transportation accident investigation agency (abbr.)

146. Positive voltage lead color

147. Opposite of O.D.

149. Online auction site

151. Chemical symbol for terbium

152. IC killer (abbr.)

153. Circuit that reduces interference (abbr.)

156. Type of high frequency circuit substrate (abbr.)

158. Manned rocket series that went to the moon

159. Mr. Fermi's first name

2. Chemical symbol for polonium

3. Refuse to absorb energy

4. Layers of a multi-layered PCB

5. Logic family (abbr.)

6. Application Specific Integrated Circuit (abbr.)

7. Electromagnetic (abbr.)

8. Chemical symbol for scandium

9. Effective Radiated Power (abbr.)

12. Greek letter (micro)

13. Type of computer display (abbr.)

16. One state of matter

17. Logic family (abbr.)

19. Organization for former military members

20. Part of a FOR loop

21. Hit a component with an electrostatic discharge

23. Official Space Shuttle designation (abbr.)

25. Facsimile

26. Chemical symbol for praseodymium

27. Software engineering tool (abbr.)

30. Type of distribution, squared

32. Half of a DIP

33. Data transmission pathway

34. Chemical element abbreviated Sn

36. Specialized mobile radio (abbr.)

38. BASIC looping keyword

40. Lowest operational frequency of a waveguide

41. Set of poles

43. Minutes of Use (abbr.)

44. Chemical symbol for selenium

46. Short for terminal

47. One component of volume

49. Swap ____, a Ham's flea market

50. Unit of length (abbr.)

51. Degree of IC sophistication (abbr.)

55. Audio Frequency Shift Keying (abbr.)

56. 10E-12 numerical prefix

57. Type of data conversion device (abbr.)

58. Common test for verifying high voltage tolerance w/o breakdown

59. Unix, Linux or Windows (abbr.)

60. Ratio of circumference to diameter

62. 1/000 of an amp (abbr.)

64. Describes when a synchronous motor lost "lock"

66. Special diode type that can be switched (abbr.)

68. Country of RF Cafe's residency

70. Mechanical engineering organization (abbr.)

72. Greek symbol commonly used to represent angles

75. Having to do with charged particles

77. Exponent that returns the original number

79. The design component of total product cost (abbr.)

80. Describes the action of cleaving a crystal plane

81. Ground fault interrupter (abbr.)

82. Common solder composition (pre-lead-free, abbr.)

83. Constellation : The dragon

84. Device for matching antenna impedance to transmitter impedance (pl.)

85. Effective frontal area presented to a microwave interrogation system (abbr.)

86. Internet address (abbr.)

88. Apollo 11 astronaut ____ Armstrong

89. Maximum voltage in a waveform

90. Transform type for changing series shorted transmission line stub into a parallel open line stub

93. A property of memristors

94. Hub of the solar system

96. Chemical symbol for tin

97. Type of capacitor dielectric

99. Type of matrix barcode used with laser scanning(abbr.)

100. Greek letter

101. Boob tube (abbr.)

104. The UK's largest defense electronics contractor (abbr.)

106. Cause a voltage or current waveform to gradually die out

107. Unit of heat

109. One type of electron spin

113. BlackBerry or Palm for example (abbr.)

115. Home state of Los Alamos lab (abbr.)

116. Signal-to-noise ratio (abbr.)

117. Crystal filter type (abbr.)

118. World's first satellite navigation system (abbr.)

119. Line of Sight (abbr.)

121. Miniature RF connector

123. Exalted-Carrier Single Sideband (abbr.)

124. One port on a BJT

125. Computer interconnection scheme (abbr.)

128. MS's server-side script engine for dynamically-generated web pages (abbr.)

130. Part of a male connector

133. 36 in. (abbr., pl.)

134. Pure carrier (abbr.)

136. Broadband Signal Intrusion (abbr.)

138. Automated Test Equipment (abbr.)

141. Semiconductor lamp

142. Opposite of I.D.

145. The "B" in BGA

146. Readability, Signal, and Tone (QoS report type)

148. 10E1 numerical prefix

150. Elemental compound used for microwave frequency reference oscillators (abbr.)

154. 1e-6 mA

155. Filter type that blocks upper frequencies (abbr.)

157. A BPF specification (abbr.) 


See solution below

 

2019 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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Cruciverbalist:

A cruciverbalist is a person who is skilled at creating or solving crossword puzzles. The term is a combination of "cruci-" from "crucifix," meaning cross, and "verbalist" from "verbal," indicating a person who deals with words. cruciverbalists are often responsible for designing crossword puzzles, and they possess a deep knowledge of wordplay, vocabulary, and the techniques used in constructing and solving crosswords. They aim to make puzzles that are both challenging and enjoyable for crossword enthusiasts.

December 29

December 22

December 15

December 8

December 1

November 24

November 17

November 10

November 3

October 27

October 20

October 13

October 6

September 29

September 22

September 15

September 8

September 1

August 25

August 18

August 11

August 4

July 28

July 21

July 14

July 7

June 30

June 23

June 16

June 9

June 2

May 26

May 19

May 12

May 5

April 28

April 21

April 14

April 7

March 31

March 24

March 17

March 10

March 3

February 24

February 17

February 10

February 3

January 27

January 20

January 13

January 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RF Cafe Engineering & Science Crossword Solution March 17, 2019