The Global Positioning System is accurate to how many meters?
2
What are the characteristics of an eliptical orbit?
Oval in shape, the earth is not in the center.
What is a satellite footprint?
The Earth area covered by a satellites downlink.
Define Scintillation.
An atmospheric condition caused by ionospheric irregularities due to cooling.
What system is used to identify aircraft through transponder returns?
IFF/SIF
Identify Friend of Foe / Selective Identification Feature
What does the acronym SAR stand for?
Satellite Access Request (SAR)
What is the lead time for GMF SARs?
Ground Mobile Forces Satellite Access Request lead times:
Germany - 10 Days
USA - 45 Days
Korea - 60 Days
Europe - 90 Days
Japan and Southwest Asia - 120 Days
The number of RADAR pulses emitted per second is referred to as what?
Pulse Repition Rate (PRR)
What are a Klygstron and Magnetron?
Klygstron: High-power amplification tube tuned to a specific frequency.
Magnetron: High-power amplification tube that is controlled by an external magnetic field.
What are three things that an operator needs in order to establiska satellite link?
Azimuth
Elevation
Be located inside the footprint.
What two things does the TACAN measure?
Azimuth
Distance
On a UHF TACSAT SAR, what is paragraph one used for?
PURPOSE
Which two U.S. Armed Forces branches use the civilian TROJAN SPIRIT II satellite system?
Army
Marines
What system is designed to detect nearby aircraft is going to replace TCAS II and ETCAS?
MILCAS
What are spread spectrum techniques?
Adding a digital signal to a pseudo-random noise code. In effect, this hides your information inside a wideband signal of noise, making it harder to detect at the cost of more bandwidth.
What is the Pulse Duration (PD)?
The length of time a RADAR pulst is emitted above 50%.
RADAR range is measured in what unit?
Nautical Miles
True / False: Endurance UAS can NOT provide Near continuous 24 hour coverage.
False
The Endurance was designed to provide 24 hour coverage.
What is the UHF-AM multi-channel radio designed to use frequency hopping anti-jamming capabilities, and uses net numbers, Word-Of-Day (WOD), and Time-Of-Day (TOD).
ARC-164
Have-Quick Systems
True / False: SINCGARS operate in a single channel mode or frequency hop mode in the band of 30-87.975 MHz.
True
What capabilities do the JTRS family of radios provide?
Wireless, mobile, LOS, Beyond-LOS
Plain/Secure - Voice, Data, Video
Will using a correct azimuth and elevation work if an operator is outside the satellite footprint?
No
What is the point in an orbit that is closest to the Earth, and is moving the fastest?
Perigee.
Which satellite orbit moves from horizon to horizon, NOT remaining stationary?
Nonsynchronous Orbit
What is a JTIDS class 2R?
A small, low-cost JTIDS variant for use in F-15's, later renamed the Air Force Fighter Data Link (FDL) and integrated under the Navy's MIDS program.
When using Doppler RADAR, what type of movement is indicated by an increase in pitch?
A rising pitch indicates movement toward the receiver.
What frequencies does the IFF/SIF system use to operate?
Interrogates on 1030 MHz
Transponds on 1090 MHz
What is the definition of a "RADAR mile"?
The amount of time it takes the signal to travel one Nautical Mile and return.
12.4 µsec is the standard used to represent 1 RADAR Mile.
Which NAVAID only provides azimuth and elevation?
TACAN
List the different applications for a satellite system.
Communications
Navigation
Detection
RADAR
Astronomy
Laboratory
On a UHF TACSAT SAR, what is paragraph eleven used for?
REMARKS
What does the Ground Control Station (GCS) provide command and control to?
UAV's
Predator
Global Hawk
What is the operating raduis for the Global Hawk UAS?
3000 NM
What year did Congress approve the use of commercial satellites for the DoD?
1993
What are the two bandwidth amounts used with DAMA?
5 kHz
25 kHz
The Predator Tier II / Global Hawk is fully operational at what altitude?
25,000 ft. Predator
50,000 ft. Global Hawk
When was JSTAR first deployed?
Desert Storm 1991
How does a Doppler RADAR detect motion?
Looks for changes in pitch between the transmitted signal and the received signal.
How does a Doppler RADAR detect velocity?
Measuresthe changes in pitch between the transmitted signal and the received signal.
What does the acronym EPLRS stand for, and what is the systems operating range?
Enhanced Position Location Reporting System
420-450 MHz (UHF)
True / False: The Instrument Landing System (ILS) uses localizer and glideslope frequency pairs.
True.
What applications do endurance UAS potentially provide?
Near Real Time (NRT): targeting and precision strike support; combat, blockade, quarantine, and battle damage assesment; information pertaining battlefield, counter-drug, special ops, humanitarian, NATO, and SIOP; etc...
The questioningelement of the IFF/SAF system is refered to as what, and what is its operating frequency?
Interrogator
1030 MHz
The respondingelement of the IFF/SAF system is refered to as what, and what is its operating frequency?
Transponder
1090 MHz
What are the seven steps that you would generally follow to operate a GPS receiving device?
Turn it on.
Enter System and User Preferences.
Select your map datum.
Fill the device.
Exit setup.
Wait for the system to acquire.
Position is displayed.
What is the distance and color of the Outer Marker (OM)?
4-7 Nautical Miles
Blue
What is the distance and color of the Middle Marker (MM)?
2,500 ft.
Amber
What is the distance and color of the Inner Marker (IM)?
