promax_MO-160

PROMAX MO-160 DVB-T Modulator

Modulates an ASI or SPI Transport Stream input to a COFDM channel in the 475-875 MHz band.
Produktnummer: MO-160
BESKRIVELSE

The MO-160 is a general purpose DVB-T modulator built in a 1 unit for 19” rack according to the ETSI EN 300 744 v1.5.1 DVB-T specification.

The unit has two ASI inputs for MPEG-2 Transport Stream. The output is a COFDM modulated signal with a selectable frequency or channel from 475 MHz to 875 MHz.

The digital codification and modulation process has been implemented over own PROMAX intellectual property programmable logic devices. This is the reason why we can warrant an optimal yield with a very competitive cost.

The MO-160 is ideal for TV distribution applications specially when the advantages of COFDM modulation is required but at same time the distribution cost per program has to be within a budget.

Services included in the transport stream can be audio, video or data in MPEG-2, MPEG-4 formats and can correspond to free to air or encrypted programs in standard definition (SDTV) or high definition (HDTV).

SPESIFIKASJONER
MPEG-2 TS INPUT
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 Fixed at 36 MHz (when RF output is off) / 0 dBm fixed
RF OUTPUT 475-875 MHz (1 Hz steps), -87 to -27 dBm (1dB steps, optional up to +6 dBm)
OPERATING MODES
MASTER or SLAVE
PROGRAM SELECTION
Service selection without table rebuilding (PID Filtering)
DVB-T/H PARAMETERS
IFFT SIZE 2k, 8k
GUARD INTERVALS 1/4, 1/8, 1/16, 1/32
CODE RATES 1/2, 2/3, 3/4, 5/6, 7/8
CONSTELLATIONS QPSK, 16QAM, 64QAM
HIERARCHICAL MODES 16QAM and 64QAM. Constellation ratio α = 1, 2 or 4
CHANNEL BANDWIDTH 6, 7, 8 MHz (user-selectable)
MFN OPERATION Available
REMOTE CONTROL
RS-232C interface (DB-9 male connector)
DOKUMENTASJON