Comtech EF Data CDM-750 Installation And Operation Manual page 108

Advanced high-speed trunking modem
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CDM-750 Advanced High-Speed Trunking Modem
Front Panel Operation
First, use the     arrow keys to select the parameter to update. Then, use the 
to edit the value for that setting (factory default for all settings is 0.0). Press ENTER when done.  
 
Degradation  figures  can  be  used  to  further  ensure  that  switching  to  higher  order  Modulation 
will not cause errors, as may be the case in systems with higher levels of phase noise or non‐
linearities  that  can  impact  higher‐order  modulation  schemes  (e.g.,  16APSK  and  32APSK 
operation) more dramatically than QPSK or 8PSK operation.  
 
5–32
Revision 2
MN-CDM750
 arrow keys 

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