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OFDM modulator


ARIB STD-B31This is OFDM moderator. Output signal is ISDB-T. This equipment is specified by ARIB STD-B31.

OFDM modulator


This equipment make translate MPEG-2 input signal to ISDB-T signal.

Application HD/SD-TV MPEG2 encoder unit TS Multiplexer for terrestrial broadcast signal
Item Specifications
TSInput section Input signal DVB-ASI
Maximum transmission rate Broadcast TS:32.5079Mbps[204byte]
Multichnnel TS:31.644Mbps[204byte]
Input connecter BNC[75Ω]
Number of input port 1 port
Transmission parameter number of segment 13
mode MODE3
type of modulation carrier 64QAM
gird interval 1/8,1/16
convolutional code 3/4,7/8
interleaving 2
transmission rate convolutional code3/4,
gird interval when 1/8 18.225Mbps
convolutional code3/4,
gird interval when 1/16 19.329Mbps
convolutional code7/8,
gird interval when 1/8 21.298Mbps
convolutional code7/8,
gird interval when 1/16 22.551Mbps
RFOutput section Output signal OFDM [ISDB-T]
Number of output channel 90 to 770MHz, 1ch
Output level 85 to 100dBµV
Output connecter F[75Ω]
Number of output terminals 1
Power Supply/Others Power Supply DC+24V [from sub-rack : FH-MF-1011A]
Dimensions Encoder unit:
Joint unit:
Mass Encoder unit:<3kg
Joint unit:<1kg
Current Use <700mA

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