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52 Cards in this Set
- Front
- Back
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What type bearing is referenced to your ship?
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Relative Bearing
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What type of target bearing is referenced to true north?
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Azimuth
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How much time is needed for an RF pulse to travel one RADAR mile?
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12.36 microseconds
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If an echo arrives 61.8 milliseconds after the RADAR transmits, what is the targets range?
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5 miles
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What term describes RADAR's ability to discriminate between two targets at the same range but different bearing?
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Target Resolution
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What term describes RADAR's ability to discriminate between two targets at the same bearing, but different ranges?
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Range Resolution
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What determines pulsed RADAR's RADAR horizon?
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Hieght of Antenna, Speed of Signal
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What RADAR component supplies the systems timing signals?
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Synthesizer AKA SPU Board
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What term describes the the RF pulse that is reflected from the target back to the receiver?
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Echo
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What RADAR component supplies the systems RF energy?
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Transmitter
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What RADAR component converts the echo to video?
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Reciever AKA IF Amp
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What RADAR component provides a visual indication of the echo pulses?
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Display Sins RDP-139/149
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What determines pulsed RADAR's maximum range?
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Carrier Frequency, Peak Power, Pulse Repition Frequency, Pulse Repition Rate, Reciever Sensitivity
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What does RADAR stand for?
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Radio Detection and Ranging
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How many versions of SINS do the Coast Guard use (for class only)?
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6
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What platform is SINS V1 used on?
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41' Utility Boat
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What platform is SINS V2 used on?
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47' Motor Life Boat
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What platform is SINS V3 used on?
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Small Boat
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What platform is SINS V4 used on?
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210' WMEC and 87' WPB
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What platform is SINS V5 used on?
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179' PC
49' BUSL 55' ANB |
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What platform is SINS V6 used on?
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110' WPB
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What is the difference between the SINS V1 and SINS V2?
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Flying bridge RDP-169 & RD-30
Speed Sensor |
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What is the required input votage for the SINS equipment?
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12-24vdc
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What is the output power of SINS V1?
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4kw
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What is the maximum range of a 1933C?
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48 nautical miles
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What is the maximum range of a 1833C?
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36 nautical miles
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What three states can the SINS power supply exist in?
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Standby
Off Transmit |
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How many power supplies does the SINS V1 have? What are they?
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2
03P9235A (Pedastal) PTU 191005 (RDP-139) |
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What are the two parts of the PTU 191005 (RDP-139 Power Supply)? What does each produce?
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Main Inverter, -12vdc/+12vdc
Sub-Inverter, (SPU Board) +5vdc, +2.5vdc, +3.3vdc |
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What in the Pedastal takes 90 seconds to warm up?
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Magnetron
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Where is the pedestal power supply located?
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Modulator Board
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Where is tthe timing signal developed?
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SPU AKA Synchronizer 19P1001
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What are the 3 main functions of the trigger pulses?
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1) Tells transmitter to transmit
2) Turns off Reciever 3) Starts stops watch |
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What input is used to generate the timing pulse?
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Bearing Pulse
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How many Bearing pulses or field generator are there in 360 degree rotation of an array?
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480
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How many Heading flases occur in one 360 degrees rotation of the array?
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1
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What is the main purpose of the Bearing Pulse?
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Synchronizes antenna position with SPU Board
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What is pulse repitition time?
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Time between leading edges of pulses
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What are the 5 parts of the transmit system?
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SPU
RTB Modulator Magnetron Antenna |
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What are the 3 inputs to the modulator board?
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P/L A/B
+/-12vdc Trigger |
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What voltages does the Modulator Board produce?
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TX-HV
20VDC 7.6VDC |
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What is the main function of the modulator board?
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Produce High Voltage pulse to drive the Magnetron
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Radar pulses are stepped up to what voltage by the pulse transformer?
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3.5 kv
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How much voltage can be found on the primary windings of T801 on the modulator board?
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300vdc
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What are the 5 blocks that make up the antenna circuitry
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Circulator
Waveguide Rotary Joint Array Bearing Circuits |
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The reciever converts the RF energy to what?
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Video
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What two cards make up the reciever section?
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IF
Microwave Integrated Circuit(MIC) |
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What are the 3 inputs to the MIC?
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RF Echo
9vdc Tuning control |
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What develops the 9470MHz RF pulse?
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Voltage Controled Oscilator
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How many satellites can the GP-37 track at one time?
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13
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What 5 items can be displayed by the GP-37?
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Reciever Status
Date& Time Position in LAT&LONG Course over Ground Speed over Ground |
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What is the operating frequency of a AIRMAR SMART transducer?
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235MHz
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