Telltec can design, supply and install Microwave transmission systems.
Microwaves were first used to transmit across long distances
that were difficult to wire, however microwave signals travel in straight lines
and can be interrupted by obstructions and therefore the transmission path
needs to be clear.
Microwave communication requires line-of-sight,
point-to-point communication. The terrain determines the frequency of repeater
stations. Care must be taken in the system design to ensure freedom from
obstacles. In addition, links must be kept free of future constructions that
could obstruct the link.
Suitable receiving antennas, high-sensitivity receivers
(i.e. low noise amplifier) and suitable processing units to monitor the
received electromagnetic radiation from the observed regions essentially
constitute microwave radiometers.
Microwave systems operate between 1.5 and 50 Ghz and have
the ability to achieve distances of up to 60 mi. (100 Km) at a cost effective
price, however, when transmitting over shorter distances, 1.2 mi. (2 Km) or
below, they lose their cost-effectiveness. Most major telecommunications companies utilize microwave systems for
the transmission of telephone communications, facsimile transmission, as well
as video and data.