Wireless Engineering Crossword Puzzle
July 31, 2016

While all RF Cafe crosswords do in fact use only my hand-entered dictionary of terms and clues (literally thousands accumulated over the years) that pertain exclusively to science, engineering, chemistry, physics, mathematics, astronomy, etc., the choice for a particular title is to help attract search engines to the page. There is nothing deceptive going on, just an attempt to exploit the nature of search engine algorithms that rank pages based on meta tags coinciding with relevant keywords and phrases occurring on the page. Enjoy.

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

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

1. Go beyond the steady-state voltage output

6. He developed a law stating the sum of all currents into and out of a node is zero

11. Opposite of O.D.

12. Chemical symbol for iron

13. Type of distribution, squared

14. Read-only (abbr.)

15. Chemical symbol for rubidium

17. Chemical symbol for nickel

18. Radio signal route

21. Chemical symbol for neptunium

23. Centimeter (abbr.)

24. Greek letter (micro)

25. Determine cause and effect

29. Logarithmic unit of voltage (abbr.)

31. Unit of length (abbr.)

32. Colorado Springs military school (abbr.)

33. Chemical symbol for chlorine

35. A type of digital modulation (acr.)

37. Chemical symbol for aluminum

39. Unintended frequency product from a mixer

41. Chemical symbol for calcium

42. Transportation accident investigation agency (abbr.)

44. Chemical symbol for niobium

45. Chemical symbol for lawrencium

46. Stock symbol for Harris Communications

47. Airport Surveillance Radar (abbr.)

49. Unit of frequency (archaic, abbr.)

50. Unit of length (abbr.)

52. Chemical symbol for tantalum

54. Coefficient of temperature (abbr.)

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

56. Type of current

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

58. Web's most popular radio frequency engineering site (2 ltrs. + 1 wd.)

61. Greek letter used for resistance

63. One port on a FET (pl.)

66. Ham's code for "Station is leaving the net."

67. European equivalent to the U.L.

68. Cellphone band below PCS

70. Opening for airflow

72. Unit of energy

74. Tied a bundle of wires together

76. Broadband Signal Intrusion (abbr.)

78. The amount of matter that a body contains

80. Amateur Radio Association (abbr.)

83. Read-only (abbr.)

85. Ham abbreviation indicating contacts with all major land masses

87. Offset Quadrature Phase Shift Keying

88. Similar to a laser, but at lower frequencies

91. Mate a plug to a jack

93. Chemical symbol for praseodymium

94. Network department (abbr.)

95. Infrared (abbr.)

96. A measure of receiver quality (abbr.)

97. Switch position

98. Type of flip-flop

100. Chemical symbol for silver

101. Permeability-tuned oscillator (abbr.)

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

105. One component of a complex number (abbr.)

106. Chemical symbol for lithium

108. The "C" in CDMA

110. Chemical symbol for radon

111. Move from cell to cell

112. One type of electron spin

113. Online service (abbr.)

115. Unit of time (abbr.)

116. Using the moon as a passive reflector to establish a signal path; moonbounce (abbr.)

119. Chemical symbol for helium

121. Automated Test Equipment (abbr.)

124. Metric angle units

127. Chemical symbol for neon

128. Upper frequency (abbr.)

129. Decimeter (abbr.)

130. Workplace safety group (abbr.)

131. Electronics manufacturer with "meatball" logo

132. Chemical symbol for silicon

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

137. Ham's code for "Shall I increase power?"

138. Last stage in a transmitter (abbr.)

139. Chemical symbol for krypton

140. RF region defined at less than wavelength/(2 x pi)

141. A component of a gasoline-powered engine's ignition system, also the horse's name in Barney Google cartoon (2 wds.)

1. Opposite of I.D.

2. Radio frequency interference (abbr.)

3. Chemical symbol for selenium

4. Number system which uses only the digits 0 to 7

5. Code for a type of electrical wire insulation

7. Band between RF and BB

8. Chemical symbol for chromium

9. Chemical symbol for holmium

10. Chemical symbol for francium

11. Put a new program on a computer

16. Voltage regulator type (hyph.)

17. Nordic Mobile Telephone

18. Chemical symbol for plutonium

19. Below ELF

20. CPS

21. Chemical symbol for neodymium

22. Chemical symbol for lead

23. Chemical symbol for californium

24. Unit of processor calculation speed, abbr.

26. A common battery cell size

27. International phonetic alphabet letter "Y"

28. Engineering Change Notice (abbr.)

30. Unit of apparent power (abbr.)

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

36. Chemical symbol for tin

38. Chemical symbol for lawrencium

39. Chemical symbol for strontium

40. Chemical symbol for radium

41. Error checking scheme (abbr.)

43. Chemical symbol for berkelium

46. Grouping of wires or cables

48. Alloy of iron and low percentages of carbon, manganese, chromium, etc.

51. Join a male and a female connector

53. 1/000 of an amp (abbr.)

55. Unit of length (abbr.)

56. Type of data conversion device (abbr.)

59. BASIC looping keyword

60. A BPF specification (abbr.)

61. International phonetic alphabet letter "O"

62. Chemical symbol for gadolinium

64. Flyboy

65. Last statement in a BASIC program

69. Chemical symbol for antimony

71. List of answers to commonly desired information about a product or service (abbr.)

73. Chemical symbol for gallium

75. Change from the initial value due to instability

77. Measure of source / load mismatch (abbr.)

78. Adds information to a CW signal

79. Longitudinal shape-forming structural element

81. Common average used for sinewaves (abbr.)

82. A common battery cell size

84. Switch position

86. Non-reactive part of Apparent Power (2 wds.)

89. A number being either positive or negative

90. Chemical symbol for erbium

92. Type of component package (abbr.)

94. Integrated Services Digital Network (abbr.)

96. Silicon transistor type (abbr.)

99. Chemical symbol for scandium

102. Type of logic gate

103. Fail-____ switch

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

105. Chemical symbol for ruthenium

107. Galilean moon

109. Resistive component of a capacitor's lumped element model (abbr.)

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

114. Chemical symbol for lanthanum

117. 1/000 of an inch

118. Thin Shrink Small Outline Package (abbr.)

119. RF & microwaves magazine founded by Gary Breed, now Summit Technical Media (abbr.)

120. Chemical symbol for europium

122. Time delay (abbr.)

123. Electromagnetic (abbr.)

125. Chemical symbol for argon

126. Logical gate type (pl.)

127. 1e-6 mA

131. Key feature in a high level overvoltage protection device

133. One port of an amplifier

134. 30 kHz to 300 kHz

135. Ratio of circumference to diameter

136. Chemical symbol for thallium

138. Max or min voltage of a waveform (abbr.)

139. Mass unit (abbr.)

See solution below


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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