Z3D153 Vol3 Unit3

1. What is the tropo/satellite support radio frequency range?

4.4 to 5.25 GHz

7.25 to 8.4 GHz

14.4 to 15.25 GHz

17.25 to 18.4 GHz

2. What are the Air Force Satellite Control Network (AFSCN) command and control nodes?

Environmental Satellite Operations Center at Schriever AFB, CO, and Multi Purpose SatelliteOperations Center, Offutt AFB, NB.

Air Force Weather Agency, Offutt AFB, NB, and NOAA Satellite Operations Control Center atSuitland, MD.

Air Force Weather Agency, Offutt AFB, NB, and Multi Purpose Satellite Operations Center,Offutt AFB, NB.

3. Which set of equipment represents the satellite readout station equipment group?

Radio frequency set and modulation system controller.

Modulation interface equipment and transmit/receive set.

Modulation interface equipment and modulation system controller.

Radio frequency set, transmit/receiver set, and digital equipment set

4. What is the number of Global Positioning System (GPS) orbital planes?

4.

5.

6.

7.

5. Which military strategic and tactical relay (MILSTAR) capability is very different from
previous military satellite communications (MILSATCOM) and commercial satellite
communications systems?

Crosslinking.

Crossbanding.

Multi-service.

Secure networking.

6. The military strategic and tactical relay (MILSTAR) satellite sends downlink
communications transmissions at

Ultrahigh frequency (UHF) and super-high frequency (SHF).

Extremely high frequency (EHF) only.

UHF and EHF.

UHF only.

7. Which military strategic and tactical relay (MILSTAR) antenna provides high gain,
selective coverage of any ground station visible on the earth's surface within its own footprint?

Spot beam.

Agile beam.

Gimbaled dish

Earth coverage.

8. Which satellite company is specifically designed to interface with all current X-band
terminals?

XTAR.

Inmarsat.

INTELSAT.

EUTELSAT.

9. Which type of diversity do you have when the same frequency radiates simultaneously in two different planes?

Polarization.

Crossband.

Frequency.

Space.

10. Which type of diversity requires two antennas, two receivers, and two transmitters?

Polarization.

Crossband.

Frequency.

Space.

11. Which mission is the highest priority of the Defense Support Program (DSP)?

Theater warning.

US retaliatory strike.

North American warning.

Worldwide space launches.

12. Which element of the military strategic and tactical relay (MILSTAR) mission allocates
communication resources?

Development.

Planning.

Support.

Control.

13. How many ultrahigh frequencies (UHF) channel are available for each UHF Follow-on
satellite?

19.

29.

39.

49.

14. What services are not included in INMARSAT mobile satellite services (MSS)?

Iridium.

Swift broadband.

Fleet broadband (maritime).

Broadband Global Area Network (BGAN).

15. Which commercial satellite communication system can offer true pole-to-pole global
coverage?

International Telecommunications Satellite Organization (INTELSAT).

European Telecommunications Satellite Organization (EUTELSAT).

International Maritime Satellite Organization (INMARSAT).

Iridium.

16. Where is the Inmarsat headquarters located?

Fucino, Italy.

Beijing, China.

London, England.

Lake Cowichan, Western Canada.

17. Which type of communications is not normally provided through commercial wideband services?

Deployable video teleconferencing.

Very small aperture terminal networks.

Handheld satellite phone communications.

International high-speed internet connectivity.

18. The MARK IVB antennas can be located up to how many feet away from the processing

1000

1500

2500

3000

19. Which satellite system provides Global Broadcast Services (GBS)?

Commercial L-band.

Defense Meteorological.

Global Positioning Satellite (GPS).

Ultrahigh frequency (UHF) follow-on.

20. When considering the factor of service area for commercial satellite services, which
description about Ku-band service is true?

Not worldwide, located primarily over land masses and highly populated areas

Not worldwide, located primarily over ocean areas and lowly populated areas.

Worldwide between roughly 65 degrees North an 65 degrees South latitudes.

Worldwide, located primarily over land masses and highly populated areas.