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Digital TV Generators
MO-370 LE ISDB-T/TB Modulator
The MO-370 LE is a general purpose ISDB-T and ISDB-TB modulator contained in a 19" 1U chassis. The unit has two serial MPEG TS-ASI inputs. Either of these inputs can be used to modulate the COFDM signal. An additional test TS can be generated internally in the modulator. This allows generating compliant ISDB-T/TB signals even in the absence of a valid TS input.

The modulator can be configured to generate any of the transmission modes listed in the ISDB-T/TB specification.

The MO-370 LE has been designed to work in Multi Frequency Networks (MFN).
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TS MPEG INPUT 2x ASI
TS packets of length 188 or 204 bytes. (automatic detection)
Support for burst and continuous packet mode
Input TS bit rate strictly below the value given in the ISDB-T/TB specification
OUTPUTS
 IF OUTPUT
 RF OUTPUT		  
31-36 MHz (fixed at 36 MHz with RF output off)  / 0 dBm fixed
45-875 MHz (1 Hz steps), approx. 80 dBµV power.
ISDB-T/TB PARAMETERS
 MODE
 GUARD INTERVAL
 CODE RATE
 CONSTELLATIONS
Mode 1 (2k), Mode 2 (4k), Mode 3 (8k)
1/4, 1/8, 1/16, 1/32
1/2, 2/3, 3/4, 4/5, 7/8
DQPSK, QPSK, 16-QAM, 64-QAM
BANDWIDTH 6 MHz