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Low dimensions and weight. Designed to fit into
space-limited facilities, FS series transmitters feature one of smallest
dimensions and weight in the industry, simplifying transport, installation
and maintenance.
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COLD-FET™ technology. This revolutionary
technology, a ITEL's international patent, is used in the FS series
transmitters to optimize the MOSFET's output matching in order to obtain
broadband amplification stages without any RF component. This means:
- higher RF efficiency > 83%
- lower heating
- higher devices safety
- higher total reliability
- low AC power consumption
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MosFets Safety. The COLD-FET™ technology
permits to obtain from the PA the full power rating reducing of almost 15%
the MosFets recommended operating DC voltage and current.
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Uninterrupted service. A true proportional
foldback protection circuit keep the transmitters always on the air
reducing the output power in case of:
- antenna VSWR
- environmental over-temperature
- failure in one or more amplification modules
- failure in one or more power supply modules
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Frequency-agile FS series transmitters are fully
broadband. All RF stages, comprising the output filters, can operate on
any FM channel, selectable via a integrated digital selector or remotely
(optional).
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On-air serviceability. Power amplifier modules
can be safely removed during operation, for on-air maintenance. Failure or
module removal keep always transmitter on-air.
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Modular assembly. Easy removable identical and
interchangeable power amplifier modules reduce spare requirement and
service costs.
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Automatic power control circuit maintains
constant RF output with precision (±1%).
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Advanced controller provides full front panel
transmitter control capabilities and extensive metering of individual
modules. Standard or special remote control interface is also available.
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Power supply. A rugged, high-efficiency (>
93%) power supply support each PA module and can be on-air removed and
replaced. Power supplies are protected from incoming AC line overvoltage,
overcurrent, transient and lightning.
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High redundancy. High on-air reliability is
assured by using multiple power amplifier modules, each comprised of four
individual PA's, with independent power supplies and optional dual
exciters.