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Products > TV Broadcasting(CATV) > Modulator > ISDB-T/Tb Modulator
Product name : ISDB-T/Tb Modulator
Product No. : TMD-BTS
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  Details:
ISDB-T/Tb BTS Modulator is developed to adapt Japan, Brazil, Argentina and other South American country’s terrestrial
digital television, the modulator's channel coding and modulation mode is fully complying with the ARIB STD-B31 standard.
This ISDB-T/Tb BTS modulator supports four TS hot backup input, single frequency network and multi-frequency network,
linear and nonlinear pre-correction function, layered transmission and the three transmission modes mentioned in the
standard. Furthermore, this device can be upgraded and controlled through network system, which can be widely used in
ISDB-T/Tb digital broadcasting network's setting up and set-top box design's production and test.
 

Features 
Ø    Fully complying with ISDB-T (ARIB STD-B31) and ISDB-TB standard

Ø    Single frequency SFN and multi-frequency MFN network

Ø    Layered transmission with A, A+B, A+B+C hierarchy modes

Ø    DVB TS input (without IIP packet), TS multiplexing, re-multiplexing and multiplexed frame generating;

Ø    ISDB-T BTS input (with IIP packet), IIP packet parsing and multiplexed frame generating

Ø    Three transmission modes: mode1(2k), mode2(4k), mode3(8k)

Ø    Liner and nonlinear pre-correction function

Ø    MER≥42db

Ø    RF output range: 30~960MHz in 1Hz step

Ø    4 channel ASI input, hot backup

Ø   Constant temperature crystal and excellent frequency stability

Ø    2 ASI inputs with loop out and hot-backup online

Ø    Constant temperature crystal oscillating and excellent frequency stability(reach up to 0.1ppm)

Ø    LCD display, keyboard and NMS operation    

Specifications 

Input

4 ASI input, hot backup

1external GPS 10MHz clock and 1pps input for SFN

1 RF input for DPD  -25dbm~+5dbm

Modulation

Standard

ARIB STD-B31

Transmission mode(FFT)

mode 1(2k), mode 2(4k), mode 3(8k)

Constellation

DQPSK, QPSK, 16QAM, 64QAM

External coding

RS (204188)

FEC rate

1/2, 2/3, 3/4, 5/6, 7/8

Guard interval

1/4, 1/8, 1/16, 1/32

Hierarchy mode

AA+BA+B+C

Time domain interlacing

mode 1: 0, 4, 8, 16

mode 2: 0, 2, 4, 8

mode 3: 0, 1, 2, 4

Bandwidth

6MHz, 7MHz, 8MHz

RF Out

Connector

N Type, 50ΩImpedance

RF range

30~960Mhz1Hz stepping

Output level ATT

-26dbm~+3dbm0.1db stepping

MER

≥ 42db

Non-linear DPD

over 10db ACPR improvement (normally)

linear DPD

over 10db non-flatness adjustment(normally)

System

LCD/keyboard and net management (SNMP)

Supporting software upgrading through network

General

Demission (W*L*H)

440mm×414mm×44.5mm

Weight

4.9kg

Temperature

0~45(operation),-20~80(storage)

Power supply

AC 100V~240V,50/60Hz

Consumption

35W











*Please contact Transworld for more details.  


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