Outline
YNS-2405G 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
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Input |
2 ASI ports input, one for hot backup, BNC interface |
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Dual IP input ports over UDP/RTP, Unicast/Multicast, GE ports |
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1 channel 10MHz reference clock input |
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1 RF input for DPD -15.2dbm~+5dbm |
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Modulation |
Standard |
ARIB STD-B31 |
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Mode |
mode 1(2k), mode 2(4k), mode 3(8k) |
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Constellation |
DQPSK, QPSK, 16QAM, 64QAM |
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External coding |
RS (204，188) |
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Internal coding |
Convolution (1/2, 2/3, 3/4, 5/6, 7/8) |
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Guard interval |
1/4, 1/8, 1/16, 1/32 |
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Hierarchy mode |
A、A+B、A+B+C |
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Time domain interlacing |
mode 1: 0, 4, 8, 16 mode 2: 0, 2, 4, 8 |
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Bandwidth |
6MHz |
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RF Out |
Connector |
N Type, 50ΩImpedance |
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RF range |
50~999Mhz，1Hz step |
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Output level ATT |
-20dbm~+5dbm，0.1db step |
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MER |
≥ 42db |
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Non-linear DPD |
over 10db ACPR improvement (normally) |
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linear DPD |
over 10db non-flatness adjustment(normally) |
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System |
LCD display & keyboard operation, WEB, Chinese & English operation display |
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Supporting software upgrading through WEB |
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General |
Demission (W*L*H) |
440mm×414mm×44.5mm |
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Weight |
4.9kg |
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Temperature |
0~45℃(operation),-20~80℃(storage) |
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Power supply |
AC 100V~240V,50/60Hz |
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Consumption |
25W |
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