Promax MO-160 Manual Del Usuario página 60

FFT Mode: Selection of the required FFT value (number of carriers in the
COFDM ensemble). The modulator has these options:
2K
8K
Spectral Inversion: This function allows inversion of the spectrum generated
in IF and RF. As the IF spectrum is by itself inverted compared to the RF
output, the inversion applied is related to the RF output. The possible options
are:
OFF:
ON:
PRBS bits: Selection of the length in bits of the internally generated
pseudorandom sequences:
23:
15:
TS sync mode: Selects the mode of operation of the modulator with respect
to the incoming TS (see section 1.2 for further details):
Master
Slave
Slave mode TS lock: In slave mode, this selects the TS input to which the
modulator locks its internal clock. Options are:
HP:
LP:
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Carriers with lower indices occupy the lower frequencies of the RF
channel.
Carriers with higher indices occupy the lower frequencies of the RF
channel.
PRBS sequences of length 2²³-1 as documented in TR 101 290.
PRBS sequences of length 2¹⁵-1 as documented in TR 101 290.
The modulator is synchronised with the HP TS.
The modulator is synchronised with the LP TS (hierarchical modes
only).
USER'S MANUAL. MO-160
02/2008