Delay and passive.
Active and passive.
Delay and real-time.
Active and real-time.
Programmed ground terminal.
Satellite access authorization.
Computer based application.
Satellite slide rule.
Code division multiple access (CDMA).
Time division multiple access (TDMA).
Demand assigned multiple access (DAMA).
Frequency division multiple access (FDMA).
Combatant commander (COCOM).
Consolidated Space Operations Center (CSOC).
Defense Information Systems Agency Operations Control Complex (DOCC).
Assign a circuit number to the telecommunications service request.
Maintain case files on all major command (MAJCOM) circuits.
Ensure the user agency is prepared to pay for the service.
Review the circuit priority against mission needs.
Department of Defense (DOD).
User’s technical control facility.
National Communications System (NCS).
Defense Information Systems Agency (DISA).
Atomic clock oscillations.
Apparent constellation movement.
The moon’s rotation about the earth.
The apparent motion of the sun in the sky.
Mean solar time.
Coordinated universal time.
Humidity and aging.
Temperature and aging.
Humidity and operating frequency.
Temperature and operating frequency.
Crystals resonate when an electric charge is applied.
Atoms release energy at a particular resonant frequency.
Atoms are sensitive to temperature and directional effects.
When atoms are split they produce predictable nuclear reactions.
Amplitude modulation and pulse modulation.
United States Naval Observatory (USNO).
International Bureau of Weights and Measures (BIPM).
Precision Measurement Equipment Laboratory (PMEL).
National Institute of Standards and Technology (NIST).
Transmitting one signal over multiple transmission paths.
Transmitting one signal multiple times over a single transmission path.
Combining multiple information channels onto a common transmission medium.
Combining multiple signals for transmission over separate, individual transmission paths.
Frequency of light.
Non-return to zero.
Forward error correction.
Quadrature phase shift keying (QPSK).
Traveling wave tube amplifier.
Metal oxide field-effect transistor (MOSFET).
Low noise amplifier.
Low noise amplifier.
Frequency acquisition, space acquisition, antenna pointing, and satellite tracking.
Satellite acquisition, satellite tracking, power correction, and antenna pointing.
Orbit prediction, antenna pointing, satellite acquisition, and satellite tracking.
Orbit prediction, space acquisition, and frequency acquisition.
4.4 to 5.25 GHz.
7.25 to 8.4 GHz.
14.4 to 15.25 GHz.
17.25 to 18.4 GHz.
Environmental Satellite Operations Center at Schriever AFB, CO, and National Oceanographic and Atmospheric Administration (NOAA) Satellite Operations Control Center at Suitland, MD.
Environmental Satellite Operations Center at Schriever AFB, CO, and Multi Purpose Satellite Operations Center, Offutt AFB, NB.
Air Force Weather Agency, Offutt AFB, NB, and NOAA Satellite Operations Control Center at Suitland, MD.
Air Force Weather Agency, Offutt AFB, NB, and Multi Purpose Satellite Operations Center, Offutt AFB, NB.
US retaliatory strike.
North American warning.
Worldwide space launches.
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.
Ultrahigh frequency (UHF) and super-high frequency (SHF).
Extremely high frequency (EHF) only.
UHF and EHF.
Global Positioning Satellite (GPS).
Ultrahigh frequency (UHF) follow-on.
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.
Fleet broadband (maritime).
Broadband Global Area Network (BGAN).
International Telecommunications Satellite Organization (INTELSAT).
European Telecommunications Satellite Organization (EUTELSAT).
International Maritime Satellite Organization (INMARSAT).
Lake Cowichan, Western Canada.
Deployable video teleconferencing.
Very small aperture terminal networks.
Handheld satellite phone communications.
International high-speed internet connectivity.