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Engineering Crossword Puzzle March 4, 2012
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Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
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1. 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 5. Constellation : The twins 10.
Last stage in transmitter (abbr., pl.) 11. Vector _______, antenna designer & manufacturer in Melbourne,
Australia
14. Chemical symbol for radium 15. Stack command 16. Chemical symbol for manganese 17. Chemical
symbol for calcium 18. Data transmission pathway 19. Chemical symbol for neptunium 21. Move in a
raster pattern
23. Snail and E are examples of this 25. Adjustment dial 27. Ham's code for "Shall I stop sending?"
28. Device attached to an antenna mast which rotates it so that the antenna can point in different directions
30. Unit of typing speed (abbr.) 32. Chemical symbol for lanthanum 34. Add solder to tip of iron 35.
Chemical symbol for iron 36. Small unit of capacitance (abbr.) 38. Boob tube (abbr.) 40. Antenna
radiated power measurement (abbr.) 42. Computer "brain" (abbr.) 44. Unit of electrical charge 45.
Chemical symbol for francium 47. Chemical symbol for thulium 48. Type of component package (abbr.)
49. Join together
51. Method of self-detection and self-fixing transmission of digital data (abbr.) 53. Below ELF 55. Type
of propagation above 30 MHz by means of refraction by highly ionized regions around the Earth’s poles 57.
Stock symbol for Boeing 58. Chemical symbol for neodymium 59. Chemical symbol for silicon 60.
Capacitor type
61. Input intercept point (abbr.) 63. Tie a bundle of wires together 65. Test equipment (abbr.) 66.
One port of an amplifier 68. Chemical symbol for silicon 69. Circuit element connecting PCB layers
71. Return-to-Zero (abbr.) 73. International Reply Coupon (abbr.) 75. Balanced-to-unbalanced device
77. One port of an amplifier
79. An ellipse has two of them 81. Thing in a bill of material 83. Possess luminosity 85. Greek
letter (micro) 86. Elemental compound used for microwave frequency reference oscillators (abbr.) 87.
Chemical symbol for europium 88. Chemical symbol for argon 90. Radio teletype (abbr.) 92. Network
department (abbr.)
93. Large radio telescope in Puerto Rico 95. Voltage-controlled oscillator (abbr.) 96. Web's most
popular RF site (2 ltrs. + 1 wd.) 97. _____ conductor |
1. Type of reconfigurable memory (abbr.) 2. A common battery cell size
3. Type of flip-flop 4. Elemental compound used for microwave frequency reference oscillators (abbr., pl.)
5. First American to orbit the earth - John ... 6. BS__ - the degree held by many RF Cafe visitors 7.
Wire diameter unit (abbr.) 8. Charged particles 9. Home state of Los Alamos lab (abbr.) 12. 1.602E-19
Joules
13. Capacitor dielectric type 15. Numbers by which a set is divisible 17. Mr. Gauss' first name 18.
He, along with Mr. Savart, developed a law that describes a magnetic field generated by an electric current
20. Physical quantity defined as being the work done per unit time 22. "Calling any amateur radio station"
24. Chemical symbol for argon 25. Chemical symbol for krypton 26. Filter type that blocks frequencies
below and above a specified band (abbr.) 29. Switch position 31. 300 kHz to 3 MHz 33. Continuous Tone
Coded Squelch System (abbr.) 35. A number series that has each number equal to the sum of the two previous
numbers
37. A BPF specification (abbr.) 39. Volt-ohmmeter (abbr.) 40. Science of assuring operation amid dense
EM background noise (abbr.) 41. Circuit for firing a radar magnetron (abbr., pl.) 43. Push to Talk
(abbr.)
46. Measure of a component's or system's likelihood of not failing 50. Chemical symbol for californium
51. Upper frequency (abbr.) 52. Inductor 54. Crystal face 55. Ticker symbol for Analog Devices 56.
Mr. de Forest's first name 57. The "B" in BER 58. Its chemical symbol is N 62. Ratio of circumference
to diameter 64. Provider of services for telecommunications systems in Switzerland 67. Chemical symbol
for nickel 69. Unit of apparent power (abbr.) 70. Under self-control (prefix) 72. International
phonetic alphabet letter "Z" 74. Part of this website's title 75. Chemical symbol for bismuth 76.
Chemical symbol for neon 78. Part of a FOR loop 80. Unit used in the measurement of radioactivity was
named after a winner of the Nobel Prize in both Physics and Chemistry 82. Converts electrical energy into
mechanical energy
84. World Amateur Radio Conference 86. Elemental compound used for microwave frequency reference
oscillators (abbr., pl.) 89. Government program to bring electricity to farms (abbr.) 91. Chemical
symbol for terbium
92. Current-voltage phase mnemonic 93. Sound frequency in the human hearing range (abbr.) 94. Chemical
symbol for californium 95. Abbreviation for peak voltage |
See solution below
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