ExtraClassSylalbus2009jan-AD7FO

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Rev 2.02 E6E11 The operating bias voltage normally supplied to the most common type of monolithic microwave integrated circuit (MMIC) is through a resistor and/or RF choke connected to the amplifier output lead. E6E12 Monolithic microwave integrated circuits (MMIC) amplifiers typically require a supply voltage of 12 volts DC. E6E13 Plastic packages are the most common package for inexpensive monolithic microwave integrated circuit (MMIC) amplifiers. E6F Optical components and power systems: photoconductive principles and effects, photovoltaic systems, optical couplers, optical sensors, and optoisolators E6F01 Photoconductivity is the increased conductivity of an illuminated semiconductor. E6F02 The conductivity of a photoconductive material increases when light shines on it. In other words the resistance decreases E6F03 The most common configuration for an optocoupler is an LED and a phototransistor. E6F04 An LED and a phototransistor in the same package is an optoisolator. Optocoupler and Optoisolator are terms that are used interchangeably for the same device. E6F05 What is an optical shaft encoder is an array of optocouplers whose light transmission path is controlled (interrupted) by a rotating wheel. E6F06 Photoconductivity will change the resistance of a crystalline solid. Jack Tiley <strong>AD7FO</strong> Page 62 3/15/2009
Rev 2.02 E6F07 Cadmium sulfide will exhibit the greatest photoconductive effect when illuminated by visible light. E6F08 Lead sulfide will exhibit the greatest photoconductive effect when illuminated by infrared light. E6F09 A crystalline semiconductor is affected the most by photoconductivity when compared to heavy metal, ordinary metal, or a liquid semiconductor. E6F10 A characteristic of optoisolators that are often used in power supplies is that they have very high impedance between the light source and the phototransistor. This makes them an excellent choice for controlling high voltages with a low isolated voltage. E6F11 Because optoisolators provide a very high degree of electrical isolation between a control circuit and a power circuit it makes them suitable for use with a triac to form the solid-state equivalent of a mechanical relay for 120 V AC household circuit. E6F12 A Gallium arsenide photovoltaic cell has the highest efficiency. E6F13 Silicon is the most common type of photovoltaic cell used for electrical power generation. E6F14 B) The approximate open-circuit voltage produced by a fully-illuminated silicon photovoltaic cell 0.5 Volts. Twenty seven cells would be required to produce 13.5 volts for charging a 12 volt battery. E6F15 Electrons absorb the energy from light falling on a photovoltaic cell. Jack Tiley <strong>AD7FO</strong> Page 63 3/15/2009
Page 1 and 2:
Rev 2.02 Preparing for the Extra cl
Page 3 and 4:
Rev 2.02 Guide to using this syllab
Page 5 and 6:
Rev 2.02 SUBELEMENT E4 -- AMATEUR R
Page 7 and 8:
Rev 2.02 ELEMENT 4 - EXTRA CLASS QU
Page 9 and 10:
Rev 2.02 E1A09 (Band Plan Chart) Th
Page 11 and 12: Rev 2.02 E1B13 (FCC Rules) Communic
Page 13 and 14: Rev 2.02 E1D08 (FCC Rules) The 2 me
Page 15 and 16: Rev 2.02 E1E20 (FCC Rules) You must
Page 17 and 18: Rev 2.02 SUBELEMENT E2 - OPERATING
Page 19 and 20: Rev 2.02 E2A13 Geosynchronous satel
Page 21 and 22: Rev 2.02 E2B17 Immunity from fading
Page 23 and 24: Rev 2.02 E2D02 The definition of
Page 25 and 26: Rev 2.02 SUBELEMENT E3 -- RADIO WAV
Page 27 and 28: Rev 2.02 E3C01 Auroral activity cau
Page 29 and 30: Rev 2.02 E4A06 A spectrum analyzer
Page 31 and 32: Rev 2.02 E4B09 High impedance input
Page 33 and 34: Rev 2.02 E4C06 If t he thermal nois
Page 35 and 36: Rev 2.02 E4D11 Third-order intermod
Page 37 and 38: Rev 2.02 SUBELEMENT E5 -- ELECTRICA
Page 39 and 40: Rev 2.02 E5B Time constants and pha
Page 41 and 42: Rev 2.02 Example 2: To find the ang
Page 43 and 44: Rev 2.02 j 50 -j 25 E5B12 The phase
Page 45 and 46: Rev 2.02 j 600 -j300 E5C04 In polar
Page 47 and 48: Rev 2.02 Parallel circuit solutions
Page 49 and 50: Rev 2.02 R=300 Ω XL= (2 π FL) or
Page 51 and 52: Rev 2.02 Power Factor represents th
Page 53 and 54: Rev 2.02 SUBELEMENT E6 -- CIRCUIT C
Page 55 and 56: Rev 2.02 Field-effect transistors e
Page 57 and 58: Rev 2.02 E6B12 Junction diodes are
Page 59 and 60: Rev 2.02 E6D02 Cathode ray tube (CR
Page 61: Rev 2.02 E6E04 The technique used t
Page 65 and 66: Rev 2.02 E7A07 An AND gate produces
Page 67 and 68: Rev 2.02 When a Class C rather than
Page 69 and 70: Rev 2.02 E7C01 In a low-pass filter
Page 71 and 72: Rev 2.02 E7D02 One characteristic o
Page 73 and 74: Rev 2.02 E7E05 A pre-emphasis netwo
Page 75 and 76: Rev 2.02 E7F08 One purpose of a mar
Page 77 and 78: Rev 2.02 E7G17 The typical output i
Page 79 and 80: Rev 2.02 E7H19 A phase-locked loop
Page 81 and 82: Rev 2.02 E8A06 The approximate rati
Page 83 and 84: Rev 2.02 E8B13 In time division mul
Page 85 and 86: Rev 2.02 E8D07 An electromagnetic w
Page 87 and 88: Rev 2.02 E9A10 Antenna bandwidth is
Page 89 and 90: Rev 2.02 E9B10 The “Method of Mom
Page 91 and 92: Rev 2.02 E9C09 The elevation angle
Page 93 and 94: Rev 2.02 E9D09 An advantage of usin
Page 95 and 96: Rev 2.02 E9E08 An SWR greater than
Page 97 and 98: Rev 2.02 E9F11 A 1/8-wavelength tra
Page 99 and 100: Rev 2.02 E9H05 The main drawback of
Page 101 and 102: Rev 2.02 SUBELEMENT E0 -- SAFETY [1
Page 103 and 104: Rev 2.02 Jack Tiley AD7FO Page 103
Page 105 and 106: Rev 2.02 Capacitors in series C= __
Page 107 and 108: Rev 2.02 Impedance of complex serie
Page 109 and 110: Rev 2.02 Calculating Component valu
Page 111 and 112: Rev 2.02 AC Voltage Calculations Th
Page 113:
Rev 2.02 Jack Tiley AD7FO Page 113
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