Solid State Amplifiers
This FM amplifier is designed to operate on 87.5 - 108 MHz frequency range
for FM radio broadcasting appliances.
dimensions and weight in the market. A new coupling architecture
permits a dramatic reductions of, dimensions, weight and cooling, simplifying
transport, installation and maintenance.
Extraordinary RF efficiency: the COLD-FET™ technology allows to obtain from the amplifiers the full power rating reducing of almost 20% the devices recommended operating DC voltage and current.
service. A proportional foldback protection circuit reduces the
output power without any on-air interruption, keeping the RF devices always
within the safety conditions in case of:
High modules redundancy: each 1 kW plug-in module is composed of 4 x 300 W stages coupled with high isolation combiners and independent power supply. This architecture assures the highest module redundancy.
High system redundancy: after the plug-in module redundancy starts the great system redundancy realized through the coupling system that permits to the amplifier to work at reduced power even in case of module failure.
On-air serviceable. The 1 kW modules replacement can be made without turning-off the amplifier.
High gain 18 dB gain permits the full output power with low input driving.
Broadband: no adjustments are required for the full power operation in the 87.5÷108 MHz band.
The automatic power control circuit adjusts and stabilizes with precision (±1%) the maximum output power in the whole band.
Switch-mode power supply. High efficiency (> 85 %) and oversized power supply modules grant low heating, low AC power consumption and superior reliability.
Low overheating. The high cooling system efficiency limits at only + 10°C the heatsink overheating respect to the environmental temperature. This permits the service even in overheated sites.
Low consumption. The high overall efficiency means a reduction of AC power consumption and operating costs.
Reduced maintenance. Easy accessibility of all parts, no RF failure, no power supply failure, external serviceable air filter reduce dramatically the maintenance costs.
Metering. A complete metering system placed on the front panel permits the precise reading of: all currents and voltages of each MOS-FET stage, forward power, reflected power.
Remote control. It is available as option a remote control interface for the following parameters: voltages and currents of each RF stage, forward power, reflected power, alarms status, on/off, stand-by.
Solid State Amplifiers
ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687