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TV Distribution: ASI inputs / COFDM outputs
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MO-170 DVB-T and DVB-H Modulator
The MO-170 is a general purpose DVB-T and DVB-H modulator contained in a 19" 1U chassis, fully compliant with the DVB-T/H specification ETSI EN 300 744 v1.5.1. The unit has three selectable MPEG-2 TS inputs (two serial ASI inputs and one parallel SPI input). The input to the modulator is an MPEG-2 Transport Stream (TS) in DVB-SPI or DVB-ASI formats. The outputs from the unit are the COFDM modulated DVB-T/H signal upconverted to IF and RF.

The modulator has been designed to achieve the maximum performance yet at an affordable price. The MO-170 supports 2k, 4k and 8k modes, hierarchical transmission and it can operate in Multi Frequency Networks (MFN). The digital coding and modulation process is implemented with programmable logic devices using PROMAX proprietary IP. This makes the design highly flexible, allowing to tailor it to any particular application.
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MPEG-2 TS INPUTS 2x DVB-ASI, 1x DVB-SPI
TS packets of 188 or 204 bytes (auto detect)
Const. avg. TS packet rate in slave mode (no packet stuffing)
Packet stuffing and PCR re-stamping in master mode
OUTPUTS
 IF OUTPUT
 RF OUTPUT 		 
Fixed at 36 MHz (when RF output is off)  / 0 dBm fixed
45-875 MHz (1 Hz steps), -87 to -27 dBm (1dB steps, optional up to +6 dBm)
OPERATING MODES MASTER or SLAVE
DVB-T/H PARAMETERS
 IFFT SIZE
 GUARD INTERVALS
 CODE RATES
 CONSTELLATIONS
 HIERARCHICAL MODES
 CHANNEL BANDWIDTH
 MFN OPERATION		  
2k, 8k  (4k with DVB-H option)
1/4, 1/8, 1/16, 1/32
1/2, 2/3, 3/4, 5/6, 7/8
QPSK, 16QAM, 64QAM
16QAM and 64QAM with constellation ratio α = 1, 2 or 4
6, 7, 8 MHz (user-selectable)
Available
REMOTE CONTROL RS-232C interface (DB-9 male connector)