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NDS2405G ISDB-T Modulator
NDS2405G ISDB-T modulator is developed to adapt 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.
Outline
NDS2405G ISDB-T modulator is developed to adapt 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
1. Fully complying with ISDB-T (ARIB STD-B31) and ISDB-TB standard
2. Dual channel ASI input, 10MHz reference clock and 1PPS in
3. Dual IP input ports, GE ports, over UDP/RTP
4. Layered transmission with A, A+B, A+B+C hierarchy modes
5. ISDB-T BTS input (with IIP packet), support single frequency and multi-frequency network
6. Three transmission modes: mode1(2k), mode2(4k), mode3(8k)
7. Supports adaptive linear digital pre-distortion (DPD)
8. Supports adaptive non-linear digital pre-distortion (DPD )
9. MER≥42db
10. RF output range: 50~999MHz with 1Hz step
11. Constant temperature crystal oscillating and excellent frequency stability (up to 0.1ppm)
12. WEB, Keyboard and LCD operation
Specifications
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
