Aviation Electronics Technician 1 - Historic Naval Ships Association

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CONTROL SERVO FAIL light on the control box. Ifthe signals are correct, they are fed to the azimuth andelevation rate compensation modules (E1 and F1) todevelop motor drive signals to slew the receiver headgimbals maximum CW and up. The rate feedbacksignals (gyro rate to E2 and F2 and azimuthtachometer to mode logic A2 and A3) are fed to servoBITE (B2). These signals are compared to the signals(azimuth/elevation rate) from the D/A converter.Should an error exist, a DCI fault isolate signal isgenerated by servo BITE (B2) and fed to mode logic(A2). Mode logic (A2) sends a known tachometersignal to the tachometer demodulator. If thedemodulator is bad, a DEMOD fail signal is generatedand sent to B2 that causes a control servo fail output.If the demodulator is good, but a rate error still exist,B2 outputs a gimbal fail signal that signifies thereceiver-converter is bad. If the rate comparisonshows no error, a BITE complete signal is generatedby servo BITE (B2) and sent to the power supplyvideoconverter. If no error has occurred duringBITE, the BITE logic module initiates a system gosignal. This signal is sent to the control box to lightthe SYS GO light.Figure 6-24.-Target tracking sight control.Figure 6-25.-TTSC block diagram.6-24
TARGET TRACKING SIGHT CONTROLAs mentioned earlier in this chapter, TTSC is themanual control used in the manual mode of operationto position the receiver-converter to the desired LOS.Figure 6-24 is a drawing of the TTSC. The TTSCconsists of a stationary control stick (A) and theelectronics for producing azimuth and elevation dcrate command signals. A thumb control (B) is used inconjunction with an angle transducer to steer thereceiver head. A trigger-type switch (C) is used toprovide manual override.Figure 6-25 is a simplified block diagram of aTTSC. A voltage regulator regulates the 15-volt dcinput from the control servomechanism WRA andprovides +6 volts dc and –6 volts dc to an angletransducer. Adjustment of the thumb control producevoltage outputs from the elevation and azimuth angletransducers. These outputs are amplified and sent tothe control servomechanism. Here they are processedto position the receiver head to the desired LOS.Should you select the computer tracking mode,the FWD mode, or the position mode on the controlbox, depressing the trigger switch initiates a manualoverride command signal. This signal goes to themode logic and D/A converter modules. This placesthe system in the manual track mode of operation.INFRARED DETECTING SET CONTROL(IRDSC)Figure 6-26 is a drawing of an IRDSC/FLIRcontrol box. Notice that each control has beenFigure 6-26.-IRDSC/FLIR control box.6-25
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PASS/FAIL ASSIGNMENT PROCEDURESIf y
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Student CommentsCourse Title:Aviati
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Table 1-1.-Radio-Frequency Spectrum
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Figure 1-3.-LS-602/AI control panel
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Figure 1-4.-Manchester encoding.thr
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they can complete a full cycle. The
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one-shot circuit output is directly
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Figure 1-7.-VHF-AM control box.Figu
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indicators in the following text. E
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Figure 1-11.-C-9245/ARC-161 control
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and the PWR/FILL switch is not in t
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panel is in OFF. If the DTS control
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the keyboard are sent directly. Rec
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the signal data converter, where it
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Navigation is both an art and a sci
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this axis at right angles to it (fi
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. Course is the intended horizontal
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The standard atmosphere is theoreti
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eadings are higher than actual. Thi
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The barometric switch in the RAWS a
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Major ComponentsThe AN/ARN-84(V) TA
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the outputs is used for the automat
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DOPPLERIn the following text we wil
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CHAPTER 3RADARAs an avionics superv
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the antennas will stop at the posit
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AS-2146/APS-115 AntennaThe radar an
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completes the processing of radar a
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In the on-line mode, the sensor sta
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Mode SwitchThe mode switch is pract
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purpose of the horizon line is to i
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Maximum range for tracking is 40,00
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transmit a reply when RF interrogat
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airspeed-altitude computer. All fra
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SIF reply code is identical to the
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In mode 4, the reply video pulse is
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sound wave. The frequency (in hertz
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to affect the rate of travel of the
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DOPPLER EFFECTWhen there is relativ
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Figure 4-7.-Transducer installed on
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The Sonar Detecting-Range Set AN/AQ
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Figure 4-16.-RO-358/ASQ-13A.mechani
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applies 115 volts ac to the transmi
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are known as angles of dip (fig. 4-
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feet in length and represents the f
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compensation is needed for the long
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labeled ALT COMP. This switch is us
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select which signal goes to which p
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the passive directional sonobuoy (f
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REVIEW QUESTIONSQ1. How was the wor
Page 110 and 111: TACAN signals. When localizer signa
Page 112 and 113: 1. The HEADING NO-GO indicator illu
Page 114 and 115: Figure 5-7.-New optical sight with
Page 116 and 117: computer’s program determines whi
Page 118 and 119: ias circuit, horizontal and vertica
Page 120 and 121: Figure 5-9.-Symbology—Continued.5
Page 122 and 123: Figure 5-14.-Sparrow mode.Figure 5-
Page 124 and 125: TACTICAL DISPLAY SYSTEM INTERFACEFi
Page 126 and 127: electrical signal, which varies in
Page 128 and 129: noise-free at that level. The impor
Page 130 and 131: Like the random interlace, this sys
Page 132 and 133: The polarity of the signal develope
Page 134 and 135: The SEC tube has applications in ex
Page 137 and 138: CHAPTER 6INFRAREDThe term infrared
Page 139 and 140: Table 6-1.-Characteristics of IR Ra
Page 141 and 142: potential difference across a PN ju
Page 143 and 144: system increases, and the reliabili
Page 145 and 146: used in the Navy, their principles
Page 147 and 148: signals from the control servomecha
Page 149 and 150: Figure 6-15.-FLIR positioning/stabi
Page 151 and 152: Figure 6-17.-Video converter video
Page 153 and 154: clamping signals from the sync gene
Page 155 and 156: shared by both azimuth and elevatio
Page 157 and 158: where they are converted into three
Page 159: go to the azimuth/elevation heat si
Page 163 and 164: control is injected in this module.
Page 165 and 166: CHAPTER 7WEAPONS SYSTEMSAs a result
Page 167 and 168: Figure 7-5.-Master light control pa
Page 169 and 170: Rocket firing systemWalleye systemA
Page 171 and 172: The wing-form display is displayed
Page 173 and 174: Figure 7-15.-Emergency jettison con
Page 175 and 176: The A/A weapon select switch select
Page 177 and 178: Part of the system consists of unpr
Page 179 and 180: Figure 7-22.-SH-3 (series) search a
Page 181 and 182: ottle and the ECU are mounted on to
Page 183 and 184: Figure 7-25.-Pylon/rack assembly.ci
Page 185: REVIEW QUESTIONSQ1. True or False.
Page 188 and 189: COMPUTER APPLICATIONSTYPES OF COMPU
Page 190 and 191: the most important. This data manip
Page 192 and 193: and other data that are to be used
Page 194 and 195: to represent the same data that was
Page 196 and 197: compatibility permits the computer
Page 198 and 199: most cases, the processing speed fa
Page 200 and 201: 4. Stores the results of manipulati
Page 202 and 203: An overall check of a computer can
Page 205 and 206: CHAPTER 9AUTOMATIC CARRIER LANDING
Page 207 and 208: stabilized deck-coordinated system
Page 209 and 210: Figure 9-3.-Mode I landing sequence
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Figure 9-5.-Lateral automatic wave-
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Precipitation StaticPrecipitation s
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l Sliding-contact interference. Thi
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the signal applied to it. These spu
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the following methods: short circui
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Figure 10-4.-Internal construction
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Figure 10-9.-Methods for using RC f
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Band-Rejection FiltersA band-reject
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Causes of Static ElectricityGenerat
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composed of carbon particles, impre
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APPENDIX 1REFERENCES USED TODEVELOP
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Chapter 7Airborne Weapons/Stores Lo
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CHAPTER 3A1.A2.A3.A4.A5.A6.A7.A8.A9
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A7. Linking two or more computers t
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FORMULASAIII-2
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AIII-4
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Comparison of Units in Electric and
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Antisubmarine warfare weapons syste
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Electrostatic discharge, 10-15compo
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Heads-up display (HUD), 5-5air-to-a
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NNavigation basics, 2-1airborne nav
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Teletype system, 1-22block diagram,
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Assignment QuestionsInformation: Th
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1-11. What will the Sillumination o
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1-35.1-36.1-37.1-38.UHF-1 does NOT
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1-59. What arethat thetactical1. Fr
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ASSIGNMENT 2Textbook Assignment:
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IN ANSWERING QUESTIONS 2-22 THROUGH
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2-43. What method does the AN/APN-1
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2-64. What distance is the maximum
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3-12.3-13.The antenna position prog
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3-32. The 128 nautical mile range i
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IN ANSWERING QUESTION 3-53,FIGURE 3
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3-74. What is the nominal peak powe
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4-12. Sonar transmission losses can
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4-31.4-32.4-33.When positive gradie
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4-52. The function of the dual curs
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4-71. The angle between a magnetic
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IN ANSWERING QUESTIONS 5-9 THROUGH
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5-29. What component contains theop
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5-51. What type of RF output signal
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6-20. On the HSI, when a tactical m
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6-42. What control(s) the symbolbri
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6-65. Which, if any, of the followi
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7-11. If the temperature of a black
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7-34.A scan mirror is indexed three
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7-56. What is the primary differenc
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8-21. With the landing gear handle
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8-42. With the F/A-18 AIM-9 Sidewin
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8-66. The jettison of wing stores I
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9-13. What method is used to change
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9-36. In magnetic core memories, a
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9-57. What typeaccess toof instruct
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10-12. To maintain the angle-of-att
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10-35. A receiver tuned to 2.4 kHze
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10-55. When rubbed against any of t
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Aviation Electronics Technician 1 - Historic Naval Ships Association

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