Thursday, 13 December 2007
Radyne: Tropo Modem
Radyne:
Troposcatter Communications Troposcatter communications refers to a method of establishing a link between two stations that are beyond line of sight of each other due to the earth's curvature. It relies on properties of the troposphere that "scatter" some of the energy in the beam that allows a receiving antenna that isn't in the beam of the transmitting antenna to receive the signal. The phenomenon has been well studied. It has been used for decades, mostly by the military, for links in the range of 50 to 300 miles. Excessive path loss limits the distance to approximately 300 miles. The challenge of tropo is the fact that the troposphere does not provide a fixed reflection of the signal. The scattering of the signal that happens in the common volume of the antenna pattern results in a signal that varies rapidly and dramatically over time. This is referred to as frequency selective fading. Changes occur over the span of a few milli-seconds.
What is the future of troposcatter in the Army?
What is the future of troposcatter in the Army?
Interesting link to info about Mil usage of tropo and poss future integration alongside wideband gapfiller satellite
Interesting link to info about Mil usage of tropo and poss future integration alongside wideband gapfiller satellite
AN/TRC-170 Deployed
| |||
AN/TRC-170 troposcatter shelter with two antennas mounted on a transportable trailer in a typical field deployment. Comtech Systems is providing an upgrade kit for these tropo terminals to increase the bandwidth from 4 Mb/sec to 16 Mb/sec and to improve the link performance.
Comtech Systems Tropo Modems
Comtech Systems Inc. is globally recognized for its state of the art, high capacity digital troposcatter systems. Our digital troposcatter equipment has the capacity for 16.384 Mb/sec. Our digital troposcatter systems are engineered and designed to meet ITU availability standards or for user requirements, in excess of 99.99%. Our record for troposcatter equipment and systems spans more than 30 years with locations throughout the world. Whether for fixed or transportable applications, across deserts, water, mountains, or other difficult terrain, Comtech Systems Inc. can meet your requirements with a modern and high capacity troposcatter system.Comtech Systems, Inc.
Troposcatter
Troposcatter: General Dynamics SATCOM 
Technologies and its partners have over 20 years experience providing fixed and transportable troposcatter solutions for a variety of military and commercial applications. Antennas range from 6 foot (1.8 meter) to 30 foot (9 meter) in diameter and operate in tropo C and tropo Ku-bands. High wind and tower mounted applications are available, utilizing state-of-the-art VertexRSI RF electronics, including amplifiers, converters and modems. Troposcatter systems are ideal for first response and emergency communications restoral, major command centers, mobile command posts, offshore oil industry communications, island to island and in-country communication links, primary communications infrastructure and more.
Technologies and its partners have over 20 years experience providing fixed and transportable troposcatter solutions for a variety of military and commercial applications. Antennas range from 6 foot (1.8 meter) to 30 foot (9 meter) in diameter and operate in tropo C and tropo Ku-bands. High wind and tower mounted applications are available, utilizing state-of-the-art VertexRSI RF electronics, including amplifiers, converters and modems. Troposcatter systems are ideal for first response and emergency communications restoral, major command centers, mobile command posts, offshore oil industry communications, island to island and in-country communication links, primary communications infrastructure and more.
Subscribe to:
Posts (Atom)