User's Manual Part 4

Digital Liquid Cooled UHF
TV Equipment
Use of commands and description of indicators
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2.1.44. "MODULATOR
This window is called up b t
It displays the status of the DVB-T nfiguration parame
is available with an internal
CONFIG" window
y pressing the "CONFIG" control keys in
modulator co
he "MODULATOR" window.
ters of exciter A or B. This window
COFDM modulator only (DVB-T Transmitters).
CONTROL KEYS FUNCTIONS DISPLAY/COMMENTS
(*)
Calls up data from the other exciter.
Calls up the "MODULATOR" window.
(*) : Only Dual-Drive version
INDICATOR LAMPS AND
MESSAGE DISPLAYS
FUNCTIONS DISPLAY/COMMENTS
Gives the window name.
Displays the constellation type used by the
modulator.
CONSTEL 64-QAM/16-QAM/QPSK
64-QAM : 64-bit representation
16-QAM : 16-bit representation
QPSK (4-QAM) : 4-bit representation
Displays the band width. WIDTH 8 MHz / 7 MHz / 6 MHz
Displays the guard interval used by the
COFDM modulator.
INTERVAL 1/32; 1/16; /1/8; 1/4
Displays the High Priority code rate of the
modulation.
HP CODE RATE 7/8; 5/6; 3/4; 2/3; 1/2
Displays the number of transmitted carriers. CARRIER 8K / 2K
Displays the input configuration of the
modulator.
Data PRBS 15, Data PRBS 17, Data PRBS
20, Data PRBS 23, Data input ASI, Data
DVB_SPI
9932 V2
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Checked
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Numéro / Number Doc. Rev. Lan
g
u.
27/06/2006
Pa
g
e