ExtraClassSylalbus2009jan-AD7FO

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Rev 2.02 E6D14 Thirty five turns of wire will be required to produce a 5-microhenry inductor using a powdered-iron toroidal core that has an inductance index (A L) value of 40 microhenrys/100 turns. N turns = 100 x (√ (L / AL)) or N turns = 100 x (√ (5 / 40)) or 35.35 turns E6D15 Electrostatic CRT deflection is better when high-frequency waves are to be displayed on the screen.. E6D16 A charge-coupled device (CCD) is not commonly used as an analog to digital converter. A charge-coupled device (CCD) uses a combination of analog and digital circuitry, can be used to make an audio delay line, and it can sample and store analog signals. E6D17 The principle advantage of liquid-crystal display (LCD) devices over other types of display devices is that they consume less power. E6D18 One reason for using ferrite toroids rather than powdered-iron toroids in an inductor is that Ferrite toroids generally require fewer turns to produce a given inductance value. E6E Piezoelectric crystals and MMICS: quartz crystals (as used in oscillators and filters); monolithic amplifiers (MMICs) E6E01 A filter bandwidth of 2.4 kHz at -6 dB would be a good choice for use in a SSB radiotelephone transmitter. E6E02 A filter bandwidth of 6 kHz at -6 dB would be a good choice for use with standard double-sideband AM transmissions. E6E03 A crystal lattice filter is a filter with narrow bandwidth and steep skirts made using quartz crystals. Jack Tiley <strong>AD7FO</strong> Page 60 3/15/2009
Rev 2.02 E6E04 The technique used to construct low-cost, high-performance crystal ladder filters is to measure crystal frequencies and carefully select units with a frequency variation of less than 10% of the desired filter bandwidth. E6E05 The relative frequency of the individual crystals has the greatest effect in helping determine the bandwidth and response shape of a crystal ladder filter. E6E06 One aspect of the piezoelectric effect is the physical deformation of a crystal by the application of a voltage. E6E07 The characteristic impedance of circuits in which almost all MMICs are designed to work is 50 ohms. E6E08 The typical noise figure of a monolithic microwave integrated circuit (MMIC) amplifier is approximately 3.5 to 6 dB. E6E09 An amplifier device that consists of a small pill-type package with an input lead, an output lead and 2 ground leads is a monolithic microwave integrated circuit (MMIC). E6E10 Typically a microstrip construction technique is used when building an amplifier for the microwave bands containing a monolithic microwave integrated circuit (MMIC). Jack Tiley <strong>AD7FO</strong> Page 61 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: Rev 2.02 E6D02 Cathode ray tube (CR
Page 63 and 64: Rev 2.02 E6F07 Cadmium sulfide will
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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