Specifications
1.four ASI inputs
2.four adjacent frequency QAM carrier outputs
3.insert RF combiner ,one RF output
3.16/32/64/128/256 QAM
CATV QAM Modulator Features
1.4 adjacent channel QAM carrier 4 ASI inputs
2.TS packet format input automatic detection (188 or 204 bytes)
3.Up to 108Mbps bit rate for each DVB-ASI input (cover both data packets and data burst)
4.RF output power 90~100dBuV ( with 0~10dB adjustable attenuation range) and 48~860MHz frequency range
5.16~256QAM modulation modes
6.Provide RF output monitoring port (-20dB)
7.Adjustable Symbol Rate: 5 to 7Mbaud
8.PSI/SI tables synchronization update
9.Excellent RF output performance, MER≥ 40dB
10.Memory protection for power-fail
11.Local keyboard control and LCD display, or access via Ethernet link
4 ASI input (Max. bit rate of each channel up to 108Mbps), RF output and RF testing output.
Application:
DVB-C QAM modulation
| 4 in 1 QAM modulator : WDQ-3244 | |
| Items | Description |
| Summary | Up to 4 ASI inputs, 4 adjacent channel QAM carrier, QAM modulator |
| Input Interface | ASI input::4×1/ BNC-Female,75Ω |
| TS packet format: 188 or 204 | |
| Output Interface | IF output: BNC-Female,75Ω ;Output frequency:36/36.15/35.25 MHz ;Output level:≥80 dBuV |
| RF output: BNC-Female,75Ω ;Output frequency::47~860 MHz ;Output level:≥100 dBuV | |
| RF TEST output ( -20dB ) : BNC-Female,75Ω | |
| Human-Computer interaction: LCD and OSD interface, Network Management Software | |
| Modulation Specification | Modulation scheme:QPSK,16~256QAM |
| Symbol Rate:1~7 Mbaud Effective output bit rate:51.6 Mbps | |
| MER (Modulation Error Rate ) :≥40 dB (After equalizer, 64QAM ) | |
| BER (Bit Error Rate ) :≥9x10E-9 (After FEC, 64QAM ) | |
