Product Detail

Lowest dimensions and weight in the industry. Thanks to the new coupling architecture it has been possible to realize a dramatic reduction of dimensions, weight and cooling, thus simplifying transport, installation and maintenance operation at the same time.

Cold Fet™ technology. This revolutionary technology, a ITEL International patent, is used in the FA 2500FS M2.5 amplifier to optimize the input matching of MOS-FET transistors in order to obtain broadband amplification stages without any RF component. This means:
high RF efficiency > 83%
lower heating
higher devices safety
higher total reliability
low AC power consumption

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.

Uninterrupted 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:
load mismatching
environmental over-temperature
cooling failure
failure in one or more RF stage
failure in power supply modules

Modules redundancy: The FA 2500FS M2.5 amplifier is composed of 9 x 300 W stages coupled with high isolation combiners. This architecture assures the highest module redundancy.

High gain 20 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.

The switch-mode power supply is largely oversized and guarantees a regular operation even in the presence of wide main voltage fluctuations: the switching converters contribute to obtain a very high AC to RF efficiency (67% typ.).

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.

A digital meter combined with LED indicators allows the user to check all the most important parameters of the equipment. The measures are visualized directly on the digital LCD display.

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.

Meets ot exceeds International standards for safety and electrical specifications.


	FA 2500FS M2.5 Solid State Amplifiers
	Lowest dimensions and weight in the industry. Thanks to the new coupling architecture it has been possible to realize a dramatic reduction of dimensions, weight and cooling, thus simplifying transport, installation and maintenance operation at the same time. Cold Fet™ technology. This revolutionary technology, a ITEL International patent, is used in the FA 2500FS M2.5 amplifier to optimize the input matching of MOS-FET transistors in order to obtain broadband amplification stages without any RF component. This means: high RF efficiency > 83% lower heating higher devices safety higher total reliability low AC power consumption 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. Uninterrupted 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: load mismatching environmental over-temperature cooling failure failure in one or more RF stage failure in power supply modules Modules redundancy: The FA 2500FS M2.5 amplifier is composed of 9 x 300 W stages coupled with high isolation combiners. This architecture assures the highest module redundancy. High gain 20 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. The switch-mode power supply is largely oversized and guarantees a regular operation even in the presence of wide main voltage fluctuations: the switching converters contribute to obtain a very high AC to RF efficiency (67% typ.). 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. A digital meter combined with LED indicators allows the user to check all the most important parameters of the equipment. The measures are visualized directly on the digital LCD display. 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. Meets ot exceeds International standards for safety and electrical specifications.




	FA 2500FS M2.5 Solid State Amplifiers

	RF specifications: Operating frequencyrange 87.5 ÷ 108 MHz Max. output power 0 - 2500 W Input power 0 - 10 W Input connector N Output connector EIA 7/8'' (other on request) Power drain at maximum power 3.8 kVA Input and output impedance 50 W Spuriousandharmonic suppression(ref.to carrier) < - 80 dBc Synchronous AM (ref. 100% mod.) < - 50 dB Asynchronous AM (ref. 100% mod.) < - 50 dB RF Probe -50dBc, 50 W, BNC Power stability < 1% RFefficiency (before the output filters) 83% typ. Overallefficiency 67% typ. Measures (onthe front panel): Output forward and reflected power DC supply voltage of each power supply board DC supply current of each power supply board Inlet Air and heatsink temperatures Protections: The internal logic circuitry provides proportional fold-back protection,without on-air interruptions,for: VSWR inlet and heatsink over-temperature insufficient cooling fault of RF or power supply stage Automatic power control: The automatic power control circuitry provides the output power regulation with a precision < 2 % over the whole band. Remote control interface (optional): Monitored and controlled functions: Stand by Forward output power Reflected output power DC supply voltage of each power supply board DC supply current of each power supply board alarms status I/O Connector DB-25 AC Power requirements: Type of DC voltage regulation Direct AC/DC switch-mode Operating Voltage 220/240 Vac ± 10% Vac 50/60 Hz, single-phase. Operating conditions: Cooling forced air by internal fans Service continuous 24/24 h Operating temperature -5°÷ +45°C Relative humidity 95% Max.installation altitude 3000 m a.s.l. Weight and size: Weight 38 kg W x D x H (see options) 483 x 675 x 222 mm Options: KFS/RC Full remote control interface

	ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687