Satellite Transponder Service

Romantis provides reliable connectivity services (hereafter “Transponder Service”), delivered via global fleet of geostationary satellites of different operators. The Transponder Service is addressed to different applications from video channel broadcasting to multisite wireless data/telephony networks. Romantis services are available full-time, 24 hours a day, 7 days a week in C-, Ku-, and Ka-band, across the entire satellite fleet.

The Transponder Service of Romantis is based on a suitable geostationary satellite and it utilizes a part or entire satellite transponder. A satellite's transponder is the series of interconnected units that form a communications channel between the receiving and the transmitting antennas of the space aircraft. The percentage of the transponder power consumed by a user should not exceed the corresponding percentage of the transponder bandwidth allocated to this user in each transponder.

A satellite transponder is typically composed of:

an input band-limiting device (an input band-pass filter)

an input low-noise amplifier (LNA), designed to amplify the signals received from the Earth station

a frequency translator used to convert the frequency of the received signal to the frequency required for the transmitted signal

an band-pass filter and output power amplifier

Most communication satellites are radio relay stations in orbit; they carry dozens of transponders. Most transponders operate on a bent pipe principle, sending back to Earth what goes into the conduit with only amplification and a shift from uplink to downlink frequency. However, some modern satellites use on-board processing, where the signal is demodulated, decoded, re-encoded and modulated aboard the satellite.

For the purpose of providing Transponder Services, Romantis leases transponders from different satellite operators on back-to-back bases. Romantis carries out the first level of technical support and escalates the problem to the satellite operator if it is associated with the operation of the spacecraft.