DIRECTV D11 Installation Guide - Page 20

DIRECTV Set-Top Box Information for the Installer STB -> Controller: F0 STB -> Controller: 01 14 FF FF STB -> Controller: F4 (Command acknowledged) (Major and minor[1] channel number) (Command completed successfully) [1]Note: For most of DIRECTV channels, the minor channel number is 0xFFFF. 5.6 GetSignalQuality (0x90) Command Label Command Byte Input Parameter(s) Return Data Stream Return Response Return Value Description GetSignalQuality 0x90 None [Signal Quality] Signal Quality: 0x00 - 0x64 ( 0x00=FEC unlocked and 0x64=max signal strength) ACK_FCNOK : Success NACK_FCNOK : Failure - STB not tuned to a DIRECTV System channel 0x0000 : Success Non-Zero : Failure - STB not tuned to a DIRECTV System channel The STB executes this command by providing the signal quality in the Return Data Stream. 5.7 GetCurrentTime (0x91) Command Label Command Byte Input Parameter(s) Return Data Stream GetCurrentTime 0x91 None [Year] [Month] [Date] [Hour] [Minute] [Second] [Day Of Week Year: 0x00 - 0xFF (# of years after 1993) Month: 0x01 - 0x0C Date: 0x01 - 0x1F Hour: 0x00 - 0x17 Minute: 0x00 - 0x3B Second: 0x00 - 0x3B DIRECTV, Inc. Version 2.2 Page 20 of 42 March 5, 2008 DTV-MD-0058