14MM-GT24W - WISI Tangram IP to 8x DVB-T Card
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WISI Tangram IP to 8x DVB-T Card


Product Summary

The GT24W module is part of the Tangram product portfolio. The GT24W module allows you to add up to 8 channels in COFDM (DVB-T) format per module to your network. Tangram is a very high density and highly flexible solution for all kinds of networks. The WISI Tangram chassis uses a fully redundant concept (n+1, 1+1).
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Features and Benefits

  • High-quality IP to COFDM modulation with outstanding signal parameters by direct digital modulation
  • Up to 8 COFDM channels on 2 RF outputs (8 X DVB-T @ 2K FFT or 4 x DVB-T @ 8K FFT)
  • Fully redundant concept (1+1, n+1)
  • High density 48 COFDM channels in 1 RU
  • RTP/ IP input streaming with FEC error correction
  • Easily managed by an intuitive WEB based UI

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Interface Gigabit Ethernet
Data Protocol MPEG over UDP/IP and RTP/IP
Communication Protocol Unicast and multicast IGMP V2 (optional V3)
Syntax SPTS and MPTS (ISO/IEC 13818)
Maximum Data Input Bitrate
using Several MPTS Signals
>800 Mbps (using multiple MPTS
Maximum MPTS Input Bitrate >100 Mbps (per specific MPTS)
Services per MPTS 1024 pcs. (per module)
Number of Filter up to 32 (multicast/unicast filter)
Jitter Tolerance ±100 ms
TS Processing
SPTS/MPTS Multiplexing inc SPTS / MPTS Multiplexing inc.
PID-Remapping PID-Remapping
MPTS Pass-Through Yes
SI-Table Handling Yes
Individual Cycle Times for Outgoing PSI-/SI-Tables Yes
Max. Number of Simultaneous E 16 16 Pcs
COFDM Processing
MER >40 dB (typ. 42 dB)
SNR ≥45 dB
Roll-Off 35%
BER ≤1*10-10
I/Q Ampl. Imbalance ≤0,10 %
I/Q Quadratur Error ≤0,10 °
Modulation QPSK, 16-, 64-QAM
FEC 1/2, 2/3, 3/4, 5/6, 7/8
Guard Interval 1/4, 1/8, 1/16, 1/32
FFT Mode 2k, 8k switchable
Spectrum Flatness ±0,3 dB
Shoulder Attenuation ≥54 dB
RF parameters
Output Ports 2 pcs
Channels Per Port up to 4 (2k-mode) or 2
Output Impedance 75 Ω
Output Frequency 45...862 MHz
Output Frequency Window 34.2 MHz (per port)
Output Frequency Steps 1 kHz
Modulation COFDM
Channel Bandwidth 5 / 6 / 7 / 8 MHz
Output Level (Each RF Port) 115(1 ch), 111(2 ch), 109(3 ch),107(4 ch) dBμV
Test Port at Each Output -20 dB (±1 dB)
Output Level Stability ±1 dB
Output Return Loss ≥14 dB (45 MHz -1,5 dB/Okt.)
Output Level Setting 0...30 dB (0,5 dB steps)
Spurious (Inside TV-Channels) >60 dB
Spurious (Outside TV-Channels) 45...450 MHz, typ. 66 dB,450...862 MHz, typ. 64 dB,862...1006 MHz, typ. 64 dB
RJ45 1 pcs
F-socket RF- Output 4 pcs
General Data
Power Consumption Max <20,4 W (max)
Dimensions (WxHxD) 34 x 17 x 8 mm
Operating Temperature Range -5°C...+45 °C (ETSI EN 300 019- 1-3 Class 3.1)
Gross Weight 0.430 kg
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