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              SSB and Multi-Carrier (OFDM) digital modulation with forward 
              codec, user programmable on-site 
               
              
               
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              Wide 
              range of transmission bandwidths (up to 48KHz), programmable 
              without exchanging hardware 
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              Integrated high-speed broadband modem for up to 384 kbps user data 
              rate and support video transmission 
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              Integrated adaptive multiplexing of data services with traffic 
              flow control. The number of the voice and data channels is up to 
              32 
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              Dynamic Speed Adaptation (DSA) allows to automatically adjusting 
              the data rate according to the prevailing line condition. The 
              adjustment does not make any transmission error or interruption
             
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              Extended carrier frequency range up to 1500 kHz, duplicating the 
              useful frequency band 
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              Automatic jammer suppression (AJS) - increases immunity to line 
              interferences
             
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              The 
              connection between multiplexer and user voice/data interfaces is 
              based on PCM E1 standard. Easy link with existed communications 
              systems