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RF Electronics 
Compact EGC Outdoor Amplifier Model 93451
 
 
 
 
Description 
 
The Compact Electronic Gain Control (EGC) Outdoor Amplifier 
Model 93451 combines powerful performance with ease of use 
to meet the growing demands of operators. It provides 
advanced features and benefits to help operators reduce 
operating costs by streamlining amplifier deployment and 
configuration. This amplifier has been especially designed for 
outdoor use, and provides surge protection for all input and 
output ports. The amplifier housing is equipped with a double 
gasket to help ensure good RF shielding and protect against 
water and dust. It is well suited for network upgrades due to 
increased reverse gain. 
 
The amplifier performs to 1 GHz in the forward path and can be 
configured electronically by using a handheld programmer 
terminal for rapid initial set-up or for adjustments that arise from network requirements shift. All settings are 
done without interrupting service, especially useful in networks which are delivering Voice over IP (VoIP) 
services. Settings of the amplifier can be established or modified by using a handheld programmer terminal, 
and can also be uploaded to the handheld programmer terminal for downloading to other amplifiers in order to 
streamline their configuration. Different forward gain settings can be obtained in the amplifier to enable 
support of several different applications within the network. 
  
The number of plug-in accessories is reduced to help operators keep inventory and costs down. The full range 
electronic attenuators and equalizers offer improved versatility and make it possible to achieve the same 
adjustment range as with conventional plug-in or potentiometer solutions. Plug-in diplex filters are used to 
determine the forward or reverse band split. 
 
To meet future demands for more bandwidth, the Compact EGC Outdoor Amplifier offers an electronic 862 
MHz to 1 GHz field-programmable bandwidth extension, as well as a reverse path that can be upgraded to 
200 MHz.  
 
 
The Compact EGC Outdoor Amplifier 93451 can be configured with a Scientific Atlanta status monitoring 
transponder (SMC or HMS) to remotely monitor the critical parameters and control the built-in 3-state reverse 
switch. All settings are remotely addressable via the ROSA Element Management System to help reduce 
truck rolls and associated costs.  
 
 
Features 
• 
Compact and rugged outdoor housing (IP68) 
• 
862 MHz or 1 GHz amplifier, frequency adjustable with handheld programmer terminal and ROSA 
• 
GaAsFET gain block technology for improved distortion and noise performance 
• 
Signal feed through at input with plug-in splitter 
• 
Current feed through at all ports 
• 
Directional output test point with adjustable frequency response through u-controller. 
• 
All gain versions in one amplifier (28, 34 and 40 dB). 
• 
Build in reverse amplifier with 200 MHz capability and selectable gain versions (20 and 25 dB). 
• 
Plug-in, self-contained diplex filters for easy upgrade of reverse path bandwidth. 
• 
Optional status monitoring and control 
• 
Integrated 3-state reverse switch (on/-6 dB/off) allows the reverse input to be isolated for noise and 
ingress troubleshooting 
• 
Both forward and reverse path are thermal compensated. 
• 
Supports the Compact SMC and HMS transponders