STA 2 MRR Flashcards by Unknown Unknown

What does RADAR stand for?

RAdio
Detection
And
Ranging

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What are the seven basic components of Radars, including AN/TPQ-49?

Radio Transmitter
Radio Receiver tuned to transmitter frequency
Antenna (may have more than one)
Synchronizer
Duplexer
Signal and data Processor
Display

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Power reflected from tgt is determined by?

Material
Aspect
Range
Size
Shape

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What frequencies do radars operate from?

3MHz up to 300GHz

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What is the Doppler Effect?

The apparent change in
frequency of a wave caused by
relative motion between the
source of the wave and the
observer.

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What is Radar Cross-section?

RADAR Cross-Section. Is the
measure of the targets ability to
reflect radar signals in the direction
of the radar receiver.
* Measured in metres squared.

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What does the AN/TPQ-49 Measure or calculate?

Azimuth bearing of the object
to the radar;
Elevation bearing of the object
to the radar;
Range of the object from the
radar;
Size of the object; and
Speed of the object relative to
the radar.

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AN/TPQ-49 LCMR Modes of operation?

Counter Fire
Sense and Warn
Air Surveillance 25 km or 40 km
Counter UAS

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2 things limited to be in vicinity of LCMR?

No Pers within 3m
No equipment within 10m

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For multiple LCMRs in one area, two requirements for operation?

Min 1000m apart
Different operating frequencies as much as possible.

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What is the coverage of the LCMR AN/TPQ-49?

Can monitor 360 degrees or 6400mils in azimuth using 24 beams, spaced 15 degrees (267mils) apart.

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What frequencies does the AN/TPQ-49 operate between?

It uses LBand and operates between 1220MHz and 1390Mhz.

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What can interfere with LCMRs?

Radars and UHF radios.

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LCMR short vs long range coverage?

Covering a 360° (6400 mils) sector, the Short Range (450-3000 m)
scan time is 0.25 seconds per scan (or 4 scans per second).

The Long Range (2200–10000m) scan is 0.75 seconds per scan (or
1.33 scans per second). These scan values remain the same
regardless of blanking sectors.

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Elevation coverage of LCMR?

The elevation coverage of the AN/TPQ-49 is made up of an upper
beam and a lower beam. The lower beam is centered on 8°(142
mils), and the upper beam is centered on 22° (391 mils), for a total
of 30° or 533 mils.

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What is the LCMRs min and max range of detection?

Min 450m
Min 1k for 81mm and 120mm mortars
Max 4k for 60mm mortar
Max 5k for 81mm Mortar
Max 6k for 120mm Mortar
Max 10k for instrument (10.2km for rockets)
Air surveillance modes 25 or 40km
Can track up to 20 mortar shells simultaneously with POO accuracy of 75m

What are the functions of the MRR (Medium Range Radar)?

The primary function of the Medium Range Radar
(MRR) system is to detect hostile projectiles such as
rockets, mortars, and artillery to determine their impact
location and locate their origin. The MRR system also
tracks hostile and friendly aerial vehicles, including fixed
wing and rotary wing aircraft, Unmanned Aerial
Vehicles (UAV), cruise missiles, and anti-radar missiles
so that land forces can take appropriate action.

Subsystems of MRR?

Radar trailer
power Skid
OWS operator work station

What is an MRR?

The MRR is a highly mobile system, mounted on a trailer and
towed by an in-service truck. It is equipped with a 65 kW power
generator installed on a separate skid.
The system is designed for rapid deployment in the field with a
minimal four-person crew. The radar is operated and controlled
from two laptop computers (Operator Work Station (OWS)) which
allows easy operation.

What are the two modes of operation for an MRR?

SECTOR MODE (90degrees 1600 mils)
ROTATING MODE (360degrees 6400 mils)

What mission types can an MRR run?

AIR DEFENCE MISSION (AD)
ARTILLERY MISSIONS
* FRIENDLY FIRE RANGING MISSON (FFR)
* HOSTILE WEAPON LOCATION MISSON
(HWL)
SIMULTANEOUS HWL / AD

What are the detection ranges for the MRR?

AIR BREATHING TARGETS
* 200 KM (ROTATING/SECTOR)
* 100 KM (COMBINED)
HOSTILE WEAPON LOCATION MISSON (HWL)
* 30 KM (SECTOR)
* 20 KM (ROTATING)
* 15 KM (COMBINED)

Equipment safety has 3 parts:

Electrostatic Discharge (ESD)
* Sensitive components such as integrated circuits may be damaged by static electricity.

Lightning
* Thunderstorms create strong electric fields that may
cause damage to the equipment or degrade radar
performance.

Maneuvering the Antenna
➢ Ensure adequate clearance prior to raising, turning or lowering the antenna.
➢ Ice or branches may cause damage on the Antenna
and Turntable.

What are the 3 Radiation hazards of the MRR?

HERP: Hazards of Electromagnetic Radiation of Personnel
HERO: Hazards of Electromagnetic Radiation to Ordinance
HERF: Hazards of Electromagnetic Radiation to Fuel

What is HERP?

Hazard of Electromagnetic Radiation to Personnel (HERP

What is HERO

Hazards of electromagnetic radiation to ordnance

What is HERF?

Hazard of Electromagnetic Radiation to Fuel

What are the Personnel safety concerns for a MRR?

* Radio Frequency Radiation * Electrical Safety * Noise * Hot Objects * Hazardous Substances

Safety distances for HERO?

Safe: 3m Susceptible: 400m unsafe 1500m

Safety Distances for HERP?

Rotating 360 high above ground: 30m Rotating 360 Flat ground: Nil Sector (HWL) 60 high above ground: 60m Sector (AD) 60 Flat ground: Nil

What is the safety distance for HERF?

300m

Frequency range of LCMR?

1220-1390Mhz

What are siting requirements for MRR?

Firm and level flat ground Range to ensure reaches enemy bullets Arcs to maximize battle shift Ground allow for quick manoeuvrin Cover from EW observation Crest for siting NAI's 35-75 Mils

What artillery specific missions can an MRR do?

HWL FFR Combination of the two

What does a RADAR Measure?

* Azimuth bearing of the object to the radar; * Elevation bearing of the object to the radar; * Range of the object from the radar; * Size of the object; and * Speed of the object relative to the radar.

What are the 5 ready states for the MRR?

* 1 - Radar engaged on current mission, system radiating over NAI/TAI. * 2 - Det is currently on assigned radiating platform awaiting mission but not radiating (awaiting permission to emit), and system start-up time is as per system in use. * 3 - Det is currently in a close hide (CH), reaction time is travelling and set-up time is as per system in use. * 4 - Det is currently mobile but available for quick action, reaction time is travelling and set-up time at nearest radiating platform is as per system in use. * 5 - Radar unavailable for tasking from..……to……. specified timings for crew rest/vehicle maintenance.

Which factors must be taken into consideration for offensive and defensive ops?

Spatial Coverage Temporal Coverage Radar Cross Section (RCS) Crest

What are the tasks of a WLR troop?

* Detect, locate and classify hostile weapons; * Determine the targets of HB and identify which HB is firing at which target; * Adjust the fire of friendly guns onto targets that cannot be seen by forward observers; * Carry out radar registration for friendly guns; * Carry out passive listening in the ESM role; and * provide force protection, via warning, to deployed operating bases and friendly force concentrations.

What are the disadvantages of WLR?

* Subject to ECM; * Adverse weather may effect performance; * Relatively expensive; and * Extremely vulnerable to ground and air attack.