Frequency-agile. LD series transmitters are
fully broadband. All RF stages ahead of the output filters can
operate on any UHF channel, selectable via a digital selector.
Modular assembly. Easy removable identical
and interchangeable power amplifier modules and power supplies
reduce spare requirement and service costs.
On-air serviceability. Power supplies and
power amplifier modules can be safely removed during operation,
for on-air maintenance. Failure or module removal keep always
High redundancy. High on-air reliability
is assured by using multiple power amplifier modules, each comprised
of six individual PA's, with independent power supplies and optional
Low maintenance. The overall operating costs
are reduced and the maintenance is optimised for two year intervals
thanks to the absence of wear-out mechanism in solid state devices.
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.
Advanced controller provides full front
panel transmitter control capabilities and extensive metering
of individual modules. Standard or special remote control interface
is also available.
Cooling. An oversized standard air cooling
system with internal fans extends transistors life. In the standard
version, air enters trough removable filters in the front panel
of each PA and power supply module. Air is exhausted from the
rear of cabinet or from the top (optional). A special version
is also available when it is necessary to separate transmitter
cooling air from building air.
Meets or exceeds all international standards
for safety and electrical requirements.