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AM-4700 R.F. POWER AMPLIFIER

   

The AM-4700 is a Linear Mode RF Booster Amplifier designed to operate and attach mechanically to any Military VHF Transceiver.

The AM-4700 operates over an instantaneous bandwidth of 30 Mhz to 88 Mhz with a gain flatness of +0.5 dB. It is designed for use as a Booster Amplifier for frequency modulated signals in the above transceivers.

The RF Power Output is a nominal 50 Watts CW with a nominal gain of +13 dB operating into 50 Ohms (Pin = 2.5 Watts; Pout = 50 Watts) with +26 VDC applied. 

TECHNICAL DESCRIPTION
ASSOCIATED INDUSTRIES
AM-4700 R. F. POWER AMPLIFIER
30-88mhz, 50 Watts
R.F. POWER AMPLIFIER

 
 

The Design Features and improved performance of the Associated Industries Booster Amplifier is obtained by the use of the Field Effect Transistors (FETS). Some of the salient advantages that this technology brings to this Amplifier are as follows:

Approximately 15 dB better base band noise signal over BiPolar transistors. This means  
   that  the radiated noise level will be much lower in the
transmitted mode, thus improving the   co-location performance.

  Flat gain vs. frequency is possible because of the extreme broad band characteristic of the 
    Silicon FETS.

Lower harmonic performance is possible with FETS due to the ability to precisely balance 
   this linear design in a push/pull configuration.

Ruggedability - The silicon field effects transistors inherently tolerant high VSWR mismatch 
   because they are defused on high resistance epitaxial material.

Thermally protected with a high temperature (80) shut-off sensor switch restoring full 
   operation when the temperature is decreased to normal range. >>>

By-Pass operation for low power is provided with a High/Low power switch which operates 
   the Transmit/Receive by-pass relays.

Efficiency - overall power efficiency is better than 50% due to the use of FETS thus
  providing longer battery operation.

Input voltage - At 25.6 VDC, the amplifier will produce  50 Watts of RF Power with 
   approximately 2.5 Watts of RF Drive. The amplifier will operate over a DC voltage variation
   of  22 to 28 volts with A + 1 dB variation in RF Power Output.

 
Download Datasheet
 
   

 

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