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300W (400W max) pallet FM amplifier  


300W FM pallet amplifier
This 300W pallet amplifer is an integrated building block which only requires power and input and output rf connections. A low loss wilkinson input splitter and output combiner puts together two push-pull transistor pairs, guaranteeing good overall circuit performance at an attractive price.

The innovative RF design maximizes RF efficiency which in turn lessens the load on the power supply and also means less heat. This allows more compact amplifiers and transmitters to be built than previously.
The amplifier employs a novel clamp technique to secure the transistors to the gold plated printed circuit board. In the unlikely event of a transistor failure the device can be replaced in-field with nothing more than a screwdriver. Unlike competitors products that require you to unsolder critical RF components that are mounted close or on the mosfet device, something that will affect the RF performance when they are not placed back exactly in the same position.

The amplifier also uses PCB transformer technology for repeatable and consistent performance from unit to unit. As you can see from the photo of the unit there is a minimal number of components on this amplifier. This translates to increased reliability and repeatable performance.

This module is for system integrators who will attach the pallet to their own cooling system (heatsink and fan) and incorporate their own low pass filter. Customers who require built in low pass filter and 1 watt input drive capability should look at one of our amplifier modules we sell, which also has a heatsink and fan assembly attached.
 
Technical specifications:
- Pout (nom) 300 Watts 
- Pout(max) 400 Watts 
- Frequency 88-108MHz 
- Power Gain 20dB typ. 
- Power Input 3 watt typ. 7 watts max (zero bias). 
- Efficiency 85dB typ. 
- Power Volts 50V 
- Drain current 8 Amps 
- Input VSWR 1.4:1 typ. 
- Power gain variation +/-.3dB typ. +/- .5dB MAX 
- Second harmonic -35dB min.

Quick Facts:
 No RF assembly or circuit tuning
 300 watts min output power
 20dB typical gain at 108MHz
 Gold clamp mosfet technology.
 High efficiency MOSFET design 



If you need to drive this amplifier with more power, have a look at our attenuators here. It will than be possible to drive this amplifier with any power level between 1W and 10W. Also do not forget that a small attenuator (1-3dB) is actually recommended as it ensures proper load to the driver in all conditions and increases stability of the entire system. Such attenuators are typically used in professional gear.


NOTE: Pallets are sensitive devices, if you do not have sufficient experience please consider a finished product instead. They can be burned by applying too much drive power, too high supply voltage, not using proper heatsink, using filter with unsufficient specifications, connecting mismatched loads or no load at all and also by soldering coax with too long leads. For this reason there is no warranty for any pallet. We do assure you that every pallet is tested and is 100% operational as it leaves our workshop.

Este producto se añadió a nuestro catálogo el Monday 23 January, 2006.
 *Por favor, seleccione la cantidad de cada artículo que desea encargar y pulse el botón 'Añadir al carrito' a continuación.
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    Nombre   Modelo   Efectuar la selección   Precio 
350W pallet amplifier without FET  350W pallet amplifier without FET     64.99EUR  59.99EUR
400W FM band RF pallet with SD2942  400W FM band RF pallet with SD2942     184.99EUR
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