Outline
COL5601J ISDB-T modulator is developed to adapt Japan, Brazil, Argentina and other South American country’s terrestrial
digital television. The modulator's channel encoding and modulation mode is fully complying with the ARIB STD-B31 standard.
This ISDB-T modulator supports two ASI and two IP input, single frequency network, and multi-frequency network. In order
to improve the output performance of the transmitter, this ISDB-T modulator also simultaneously supports adaptive linear
and nonlinear digital pre-distortion, layered transmission and three transmission modes. Furthermore, this device can be
upgraded and controlled through network system, which can be widely used in ISDB-T digital broadcasting network's setting
up and set-top box design's production and test.
Features
Fully complying with ISDB-T (ARIB STD-B31) and ISDB-TB standard
Dual channel ASI input, 10MHz reference clock and 1PPS in
Dual IP input ports, GE ports, over UDP/RTP
Layered transmission with A, A+B, A+B+C hierarchy modes
ISDB-T BTS input (with IIP packet), support single frequency and multi-frequency network
Three transmission modes: mode1(2k), mode2(4k), mode3(8k)
Supports adaptive linear digital pre-distortion (DPD)
Supports adaptive non-linear digital pre-distortion (DPD )
MER≥42db
RF output range: 50~999MHz with 1Hz step
Constant temperature crystal oscillating and excellent frequency stability (reach up to 0.1ppm)
WEB, Keyboard and LCD operation
Specificatinso
Input
2 ASI ports input, one for hot backup, BNC interface
Dual IP input ports over UDP/RTP, Unicast/Multicast, GE ports
1 channel 10MHz reference clock input
1 RF input for DPD -15.2dbm~+5dbm
Modulation
Standard
ARIB STD-B31
Mode
mode 1(2k), mode 2(4k), mode 3(8k)
Constellation
DQPSK, QPSK, 16QAM, 64QAM
External coding
RS (204,188)
Internal coding
Convolution (1/2, 2/3, 3/4, 5/6, 7/8)
Guard interval
1/4, 1/8, 1/16, 1/32
Hierarchy mode
A、A+B、A+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
RF Out
Connector
N Type, 50ΩImpedance
RF range
50~999Mhz,1Hz step
Output level ATT
-20dbm~+5dbm,0.1db step
MER
≥ 42db
Non-linear DPD
over 10db ACPR improvement (normally)
linear DPD
over 10db non-flatness adjustment(normally)
System
LCD display & keyboard operation, WEB, Chinese & English operation display
Supporting software upgrading through WEB
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
25W
Principle chart
