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(2015) Service Bulletin 1526: GTN 635/650/750 Software Upgrade to COM Software Version 2.20


CERTIFICATION APPROVAL:  TSO Authorization

COMPLIANCE:  Optional

SYSTEM:  GTN635 / GTN650 / GTN750

PURPOSE:

 This Service Bulletin announces the availability of GTN 635/650/750 COM Software Version 2.20 and COM FPGA Version 2.4.

 GTN 6XX/7XX COM Software Version 2.20/FPGA Version 2.4 contain the following changes from COM Software Version 2.13/FPGA Version 2.2:

  • Reduced noise burst (“Squelch Tail”) that occurs at the end of a reception
  • Reduced random squelch breaks (popping)

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