What is UHF satcom?
The Ultra High Frequency Satellite Communications (UHF SATCOM) System provides communication links, via satellite, between designated mobile units and shore sites worldwide. The UHF SATCOM system is one of three SATCOM systems installed and operates in the UHF range.
Is Satcom an RF?
Satcom applications use a Low Noise Figure RFoF link to transport such signals without noise contamination. RFOptic provides built-in Low Noise Figure amplifiers in the RFoF transmitter to reduce the link NF up to 6 dB.
What is Satcom used for?
Satcom refers to the voice and data service that allows an aircraft to communicate, via satellite, with air traffic control and its airline operations centre when outside coverage of conventional ground radar and Very High Frequency (VHF) stations.
What is a satcom waveform?
The waveform is designed to support a large range of terminal dish sizes and provides Ka band rain fade mitigation. The later allows for Satcom terminals to dynamically adjust their modulation and coding rates during the changing link conditions encountered during Ka-band rain fade events.
What is a satcom antenna?
An extensive array of UHF products are available for military satellite communication (MIL SATCOM). The antennas are extremely durable, foldable, can be high gain or medium gain, and fitted to a tripod for rapid field deployment. …
What frequencies does the military use?
The primary military-only bands in the VHF high band are 138.00-144.00 and 148.00-150.775. Basic spacing between channel is 25 kHz (USN/USAF). The Army uses 12.5 kHz spacing in their segments of the band.
What is a satcom link?
A typical satellite link involves the transmission or uplinking of a signal from an Earth station to a satellite. The satellite then receives and amplifies the signal and retransmits it back to Earth, where it is received and reamplified by Earth stations and terminals.
Who uses SATCOM?
Delivering satellite communications solutions for government and military operations. Satcom Direct Communications (SDC) provides government and military users with aeronautical, land-mobile, and maritime satellite communications using Inmarsat, Iridium, and Ku-band services.
What is a SATCOM link?
What is satcom IW?
Satcom IW is designed to replace demand assigned multiple access waveform in granting satellite access. Easier satellite access aside, the added bonus of the satcom IW is its size.
What does Muos stand for?
Mobile User Objective System
Developed for the U.S. Navy by Lockheed Martin, the Mobile User Objective System (MUOS) is revolutionizing secure ultra-high frequency (UHF) satellite communications (SATCOM) for mobile forces.
How do we get signals for our dish antennas?
Antennas affixed to satellites are, by necessity, used for both receiving and sending signals. Antennas on the satellite receive signals uplinked (transmitted) from various sources on Earth. The signals are then processed by a transponder and sent back to the earth station for redistribution.
What do aircraft use SATCOM for?
A typical aircraft SATCOM installation can support data link channels for ‘packet data services’ as well as voice channels. SATCOM data link is currently used for only a small proportion of en route ATM communications in contrast to the much more extensive use as an alternative to VHF and HF for non-ATC purposes.
What are frequency bands in satellite communication?
L-band (1-2 GHz)
How does SATCOM work?
Satellites communicate by using radio waves to send signals to the antennas on the Earth. The antennas then capture those signals and process the information coming from those signals.
What is SATCOM modem?
Satcom Modems are devices used to establish data modulation and demodulation used with a BUC, LNB and dish using a communications satellite as a relay.