1. 
   output backoff
   the degree of backoff under specified operating conditions, calculated as the ratio of the output power of a single carrier at saturation to the total power of the output signal under the specified conditions NOTE - Output backoff is usually expressed in decibels as a positive quantity.
   Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=725-14-07
   
   

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