ABM IQT Block 3 v2.0

3-1 What are the optimum E-3 flight parameters for radar operators?

29,000 ft elevation and 360 knows +/- 50

3-1 (T/F) Do not radiate the mission radar at or below FL180 due to the potential for conflict with Visual Flight Rules (VFR) traffic that may pass closer than 1,300 feet vertically and 650 feet horizontally.

False

3-1 What type of radar wake-up could the ABM recommend due to time constraints in order to reduce the time of radar power-up?

Fast Wake Up

3-1 Before transferring the radar, the ABM will verify and report to the ART that the E-3 altitude is between \___ and \___ for RF radiation.

FL 180 and FL 400

3-1 How is maximum pulse Doppler radar range measured during radar checkout.

Observing a data trail with a minimum of 3 returns

3-1 How is maximum BTH radar range measured during radar checkout?

Measuring 1 point or history

3-1 (T/F) The assessment of overall air picture quality is the primary factor in determining the optimum RF set?

True

3-1 What are the parameters for checking IFF Jitter during IFF sensor checkout?

Non maneuvering, as close to 250 NM, no more than 3 NM seperation

3-1 What are the minimum equipment items required to operate the IFF system?

1 KIV unit, 1 R/T unit, the Radar Target Data Processor, and a power supply

3-1 (T/F) Either RT can be configured with either KIV.

True

3-1 Adjusting the IFF power level affects \___

IFF Transmitter

3-1 The purpose of the IFF modes of interrogation fields (Alpha, Beta, and Gamma fields) in the IFF control options of the Geometries window is to \___

enable interrogation of selected modes

3-1 Which Mode 5 format must be active in order to receive Mode 1 data via Mode 5 interrogations?

Format 1

3-2 Newly created IFF sectors must be \_____ in order to take effect.

Placed in the directory folder that has an IFF Plan

3-2 Which Mode 5 format CANNOT be continuously interrogated?

Format 3 (Lethal)

3-3 How many RF transmitters does the E-3 mission radar have?

2 - A &B chain

3-3 How many RF frequency sets are each radar chain capable of generating/transmitting?

6

3-3 What does an RF frequency set consist of?

2 hard paired but deconflicted freqs, 1 for pulse doppler and 1 for pulse

3-3 The E-3s operating frequencies fall in which Rf spectrum frequency band?

Fox 2-5

3-3 What is the optimum altitude for radar operations?

FL 290 (29000 MSL)

3-3 What is/are the optimum ground speed(s) for radar operations?

360 +/- 50

3-3 What is the optimum rotodome rotation rate?

6 +/- .33 RPM

3-3 What is a slant?

1 modulation period during which transmittion and reception take place

3-3 Which E-3 mission radar set is capable of Pulse-MSC radar modes?

AN/APY - 2

3-3 What is an "Air Mode" for the radar?

Where the pulse component of the radar is BTH, PSV, or OFF

3-3 What is a "Maritime mode" for the radar?

Where the pulse component of the radar is AMS or MSC

3-3 What is/are dual modes(s)?

Both a primary and secondary radar mode are selected, each set at operator discretion and with an alternating interval/radio set by the operator.

3-3 What is interleave?

When the Pulse and Pulse Doppler radars work together with overlapping coverage.

3-3 What is the difference between the Passive (PSV) and OFF radar configurations or states?

In passive you can still receive and process, you cannot in off.

3-3 Describe ELS/BTH

Short Slant PD ELSCAN active interleaved with Pulse - BTH active

3-3 Describe LEL/BTH

Long Slant PD ELSCAN active with Pulse-BTH active

3-3 Describe ELS/PSV

Long Slant PD ELSCAN active with BTH passive

3-3 Describe PSV/BTH

Short slant PD ELSCAN passive with Pulse-BTH active

3-3 Describe PSV/PSV

Short Slant PD ELSCAN Passive with BTH passive

3-3 Describe OFF/BTH

Pulse-BTH active only as the PD radar is off

3-3 Describe NEL/OFF

Long Slant PD non ELSCAN active only - Pulse Doppler is off

3-3 Describe ELS/AMS

Short Slant PD ELSCAN active with adaptive MSC active

3-3 Describe LEL/AMS

Long Slant PD ELSCAN active with adaptive MSC active

3-3 Describe PSV/AMS

Short Slant PD ELSCAN passive with adaptive MCS active

3-3 Describe OFF/AMS

Adaptive MSC only (PD is off)

3-3 Describe LNE/MSC

Long Slant PD non ELSCAN active with Pulse-MSC active

3-3 Describe NEL/MSC

Short Slant PD non-ELSCAN active with pulse MSC active

3-3 Describe OFF MSC

Pulse-MSC active only (PD radar is off)

3-3 What is the default E-3 radar mode?

ELSCAN/BTH (ELS/BTH)

3-3 What is always the optimum AMS command angel (CMD_EL) setting?

-2.1 degrees

3-3 What are the PD long slant radar modes?

LEL/BTH, ELS/PSV, NEL/OFF, LEL/AMS, LNE/MSC

3-3 How many MSC maritime radar modes are there?

3 - NEL/MSC, LNE/MSC, OFF/MSC

3-3 What is common of all the PD radar modes in the radar modes with the Pulse radar in MSC mode?

Their all non-ELSCAN PD modes

3-4 What are the benefits of pulse coding/pulse compression of the PD radar?

Improved range resolution and clutter elimination

3-4 Pulse Doppler \____ targets are long-range targets that fall beyond the instrumented range of the radar.

second time around

3-4 If two detections have very similar Doppler shift and azimuth location and are close in range, they are probable \___ detections from a single target.

multipath

3-4 What is target eclipsing?

failure of the radar to detect a target in one PRF because the transmitter is pulsed on at the same time the target return is received

3-4 (T/F) Short ELSCAN Doppler modes will generally provide your best Doppler detection.

False

3-4 (T/F) You update the STATH range settings through a Geometries Window - radar - moving/fixed sector - pulse doppler input.

False

3-4 (T/F) You'll use low velocity detection (LVD) to detect low range rate targets.

True

3-5 (T/F) In general, radar modes with short slant Doppler operation will produce the best pulse detection.

True

3-5 AMSC thresholds are \__________ sensitive than BTH thresholds.

Less

3-5 (T/F) BTH is a low PRF, High power radar.

True

3-5 What happens when you operate the radar above 35k ft?

Transmitter operates in 3 dB gain compression to prevent WAVEGUIDE ARCHING

3-5 (T/F) MSC modes are available on both the E-3B and E-3C models.

False

3-5 Describe DLMB and what it does for you.

Digital Land Mass Blanker

it blanks return signals that correspond to land masses so the MSC receiver is not desensitized by large amplitude land returns

3-5 Who loads the DLMB maps?

ART

3-5 If you are running ELS/BTH and input a command angle of -4.2 degrees, what happens to your radar? Will you see any change in you geometries window?

BTH will be passive but still show in geometries

3-5 How does the pulse radar attain acceptable range resolution?

Compression of pulse width

3-5 (T/F) BTH can be completely inoperable and MSC may still work.

True

3-5 When would you use DLMB compression?

When trying to detect and track targets close to the land

3-5 (T/F) BTH uses the Doppler frequency sift for Target Detection.

False

3-5 The BTH radar is primarily used for coverage at \_____ range.

long

3-5 The BTH's height finding capability is \___

non existant

3-5 Select the statements accurately describing the BTH radar:
a. Very Low Clutter
b. Very Long Range
c. High Power
d. Short Pulse, High PRF
e. Height Capability

b. Very Long Range
c. High Power

3-6 Describe AZ ERROR LIMIT

Displayed when radar/IFF alignment delta threshold exceeded

3-6 Describe AZ ERROR HIGH

Displayed when radar/IFF alignment delta threshold is nearly reached

3-6 Describe IFF BEAM SPLIT HIGH

Displayed when the number of IFF Beam Split reports exceeds the High Threshold Percentage (70% of the total number of IFF returns)

3-6 Describe IFF BEAM SPLIT LIMIT

Displayed when the number of IFF Beam Split reports exceeds the Error Limit Threshold Percentage (90% of the total number of IFF returns)

3-6 Describe ROTODOME RPM

Displayed when the rotodome rotation rate exceeds the threshold of 6 +/- .33 RPMs

3-6 The Pulse Doppler Radar in the \_____ mode will not transmit pulse but will receive and process pulses and environment signals.

Passive (PSV)

3-6 The optimum command angle of BTH radar is \____

-2.1 degrees

3-6 The optimum command angle for the PD radar in a long slant is \_____

-.7 degrees

3-6 (T/F) The blanking field sets a minimum amplitude that low velocity targets must exceed in order to be displayed.

False

3-6 (T/F) Changing radar frequencies between sectors is encouraged.

False

3-6 (T/F) Detection occurs when the signal strength is greater than the CFAR detection threshold assigned by the operator.

True

3-6 (T/F) Reducing the Minimum Velocity (MV) value to decrease detection capability for low-velocity targets will also decrease background pulse doppler clutter.

False

3-6 During \_____, do not transmit on mission identification systems during contact.

Air Refueling

3-6 The system generates what alert for out-of-tolerance rotodome speeds?

ROTODOME RPM

3-7 What encryption devise provides Link 11 with secure transmission and reception?

KG-40A

3-7 What are the two types of radios used by Link 11?

HF and UHF

3-7 Which aircrew members are normally tasked to establish Link 11?

ARO and DLO

3-7 Which aircrew members are normally tasked to establish Link 16?

ADST and DLO

3-7 The JTIDS terminal is normally configured by the\____

ADST

3-7 Link 16 operates on what frequency bands?

Ultra-High Frequency (UHF)

3-7 All PUs are responsible for \____

Providing data and coordinating with other units as directed

3-7 Interrogating all other units in a Link 11 net is a function of a/an:

DNCS

3-7 This maintains a clear picture within the link with minimum conflicts and omissions. Responsible to ICO accuracy, timeliness, quality and frontline track supervision of active links.

Force Track Coordinator/Track Data Coordinator (FTC/TDC)

3-7 How many frequencies does JTIDS "hop" between in 960-1215 MHz?

51

3-7 This is the normal mode with pickets responding to DNCS polling

Roll Call

3-7 What is a one time transmission of information?

Short Broadcast

3-7 This is a continuous transmission of information to other participants.

A Broadcast

3-7 This is used to synchronize units for establishing a net or troubleshooting.

Net Synch/Net Test

3-7 What 4 pieces of terminology are associated with Link 11?

Data Link Reference Point (DLRP)
Data Net Control Station (DNCS)
Data Link Reference Number (DLRN)
Participating Unit (PU)