WEB Interface 123
ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
• for DVB-T2 version 1.2.1 supported techniques are L1-ACE/P2-TR, L1-ACE/ACE-
PAPR, L1-ACE/TR-PAPR, L1-ACE/ACE and TR
Pilot pattern
Pilot patterns are used by the receiver to estimate changes in channel response in both time
and frequency dimensions. There are eight patterns available.
Num T2 frames
The number of DVB-T2 frames within a DVB-T2 super-frame.
Num OFDM symbols
The number of OFDM symbols a DVB-T2 frame is mapped to. This number includes the
P2 symbols, such that to get the number of Data symbols one has to subtract the number
of P2 symbols. THe number of P2 symbols is automatically calculated and displayed in
the Status frame.
RF Frequencies
Defines a list of used RF frequencies. Typically only one entry is required. Note that some
modulators override this setting.
L1-modulation
This field indicates the used modulation for the L1 signalling. Possible values are:
• Binary Phase Shift Keying (BPSK)
• Quadrature Phase Shift Keying (QPSK)
• 16 Quadrature Amplitude Modulation (16-QAM)
• 64 Quadrature Amplitude Modulation (64-QAM)
L1-Post scrambling
Enabled scrambling of the L1-Post signaling. Uses same scrambling sequence as BBFrames.
For version 1.3.1 and newer.
8.6.4.2 SFN Configuration
The SFN Configuration page is only visible if the SFN feature is available.
Timestamp type
This field indicates the type of the time stamp to be sent to the modulator. Possible values
are:
• Null: Seconds and subsecond field set to 1’s. For MFN networks.
• Relative: Seconds field set to 0’s, while subsecond field locked to 1PPS. For SFN
networks.
• Absolute: Seconds field locked to SNTP, subsecond field locked to 1PPS. For SFN
networks. Allows delays from T2-Gateway to modulators of more than 1 second.
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