Technicians Handbook - Historic Naval Ships Association

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WavelengthCAUTIONBecause vacuum tubes become hot and most are made of glass, use cautionwhile removing or replacing them. Use vacuum tube pullers or at least wear sometype of hand protection.Wavelength is the distance in space occupied by one cycle of a radio wave at any given instant. If aradio wave could be frozen in time and measured, the distance from the leading edge of one cycle to theleading edge of the next cycle would be the wavelength. Wavelength varies from a few hundredths of aninch at the high frequencies to many miles at extremely low frequencies. Common practice is to expresswavelength in meters. The Greek letter lambda (λ) is used to signify wavelength. Formulas forwavelength, period, and velocity are shown below.Wavelength formula:Frequency formula:You can find more information on wavelength, frequency, period, and velocity in NEETS, Module10, Introduction to Wave Propagation, Transmission Lines, and Antennas.1-36
RadarSome helpful radar information/formulas are shown below.PWPulse Width—The width of the transmitted RF pulse from the radar(the term can also be used regarding other non-RF information).PRTPulse Repetition Time—The duration of the time between radartransmitter pulses (leading edge of pulse to leading edge of the nextpulse).PRR orPRFPRF Pulse Repetition Rate or Pulse Repetition Frequency—thenumber of pulses that occur during one second.DCDuty Cycle—The amount of actual transmitter pulse time (PW)divided by the amount of transmitter total time (PRT). For radarapplications, the duty cycle will always be less than one.P pkPower Peak (normally referenced in kilowatts)—The actual power ofthe transmitted RF pulse (PW).P avgAverage Power (normally referenced in watts)—The transmittedpower relative to one PRT.1-37
Page 1 and 2: SPECIAL PUBLICATIONSeptember 1998Na
Page 3 and 4: PREFACESpecial Publications (SPs) a
Page 5 and 6: TABLE OF CONTENTSCHAPTERPAGE1. The
Page 7 and 8: Module 11, Microwave Principles, ex
Page 9: Student CommentsCourse Title:NEETS
Page 12 and 13: • Be cautious when working in voi
Page 14 and 15: Electric ShockElectric shock may ca
Page 16 and 17: In this situation, the immediate ad
Page 18 and 19: Lean or rock forward with elbows lo
Page 20 and 21: possible) over the wound and firmly
Page 22 and 23: (1) NEAREST THE WOUND and (2) BETWE
Page 24 and 25: Shock• Be sure you draw the tourn
Page 26 and 27: Liquids should be administered spar
Page 28 and 29: drinks or stimulants. Get the victi
Page 30 and 31: Figure 1-11.—RC time constants.Fi
Page 32 and 33: Ac current formulas are:Ohm's law f
Page 34 and 35: Parallel inductors without coupling
Page 36 and 37: Another way to calculate reactive p
Page 38 and 39: ResistanceRESISTANCE is the opposit
Page 40 and 41: Since:Transformer power:1-30
Page 42 and 43: WARNINGRf voltages may be induced i
Page 44 and 45: Alpha is always less than 1 for a c
Page 48 and 49: Minimum radar range = (pulse width
Page 50 and 51: Log or dBGain or mw11 12.510 109 88
Page 52 and 53: Table 1-1.—CB Style Capacitor Par
Page 54 and 55: Table 1-3.—CYR10 Style Capacitor
Page 56 and 57: Figure 1-16.—Ceramic capacitor co
Page 58 and 59: Table 1-4.—Principal Applications
Page 60 and 61: Figure 1-18.—Resistor color code.
Page 62 and 63: MilitaryspecificationMIL-R-39005MIL
Page 64 and 65: Figure 1-19.—Color code for trans
Page 66 and 67: Figure 1-21.—Transistor lead iden
Page 68 and 69: numbers and part numbers can be fou
Page 70 and 71: SizeTable 1-10.—Current-Carrying
Page 72 and 73: Jan TypeOverallDiameter (ins)Table
Page 74 and 75: Table 1-13.—MS Connector Identifi
Page 76 and 77: Figure 1-23.—Insert arrangements
Page 78 and 79: Figure 1-25.—Typical BNC connecto
Page 80 and 81: Figure 1-28.—Attaching HN connect
Page 82 and 83: Table 1-16.—N Series Connectors w
Page 84 and 85: Insulation, Heat Shrinkable Sleevin
Page 86 and 87: Table 1-19.—Shrinkable Tubing Par
Page 88 and 89: Table 1-21.—New Style Military Fu
Page 90 and 91: Conversion and Equivalent TablesTab
Page 92 and 93: Table 1-24.—Conversion Chart—Co
Page 94 and 95: Table 1-24.—Conversion Chart—Co
Page 96 and 97:
Figure 1-33.—Electrical symbols.
Page 98 and 99:
Figure 1-34.—Electronic/logic sym
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Figure 1-35.—Fiber optic symbols.
Page 106 and 107:
Table 1-26.—Frequency Spectrum Us
Page 108 and 109:
Joint Electronic Type Designation S
Page 110 and 111:
Table 1-29.—Microcircuit Part Num
Page 112 and 113:
Table 1-29.—Microcircuit Part Num
Page 114 and 115:
CIRCUIT53MC54MC55MC56MC57MC58MC59MC
Page 116 and 117:
CIRCUITQAQDQXRARDRW4SNSPTD1TD2TD5TD
Page 118 and 119:
CIRCUIT4JZ5JZ6JZ7JZ8JZ9JZ10JZ11JZTa
Page 120 and 121:
CIRCUITX29JX34JX40JX41JX42JX43JX44J
Page 122 and 123:
Table 1-34.—Common LogarithmsN 0
Page 124 and 125:
Table 1-35.─Trigonometric Functio
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Table 1-36.—Julian Date CalendarD
Page 132 and 133:
Table 1-38.—Effects of Heat and H
Page 134 and 135:
Table 1-40.—Old and New Specifica
Page 136 and 137:
Remember to use the proper safety p
Page 138 and 139:
Figure 1-38.—Computation of phase
Page 140 and 141:
Figure 1-40.—Lissajous patterns f
Page 142 and 143:
Figure 1-42.—Octopus schematic di
Page 144 and 145:
Figure 1-46.—Combination displays
Page 146 and 147:
• A military alteration that chan
Page 148 and 149:
numbers. They can be easily convert
Page 150 and 151:
support equipment. All aircraft equ
Page 152 and 153:
Publications and DocumentsVarious p
Page 154 and 155:
REFERENCESAfloat Shopping Guide, NA
Page 156:
NEETS, Module 9, Introduction to Wa
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Technicians Handbook - Historic Naval Ships Association

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