Basic Info.
Product Description
★Description
DT-DQAM-M3204B is a new compact (1RU only) chassis and cost-effective QAM modulator with multiplexing function, which is designed by Hangzhou Prevail according to the DVB related standards. DT-DQAM-M3204B has 4 ASI input (Max. bit rate of each channel up to 108Mbps), one of RF output and RF testing output. The DT-DQAM-M3204B has very convenient and friendly management interface, the user can complete all operation via local keyboard and LCD display on device, or access through the Ethernet port on device.
★Feature
⊙Up to 4 ASI inputs
⊙Up to 108Mbps bit rate for each DVB-ASI input (cover both data packets and data burst)
⊙Support multiplexing
⊙Adjustable Symbol Rate up to 7Mbaud
⊙Max. effective bit rate up to 51.6Mbps (SR=7Mbaud, 256QAM)
⊙Nominal RF Output power ≥100dBuV (with 0~15dB adjustable attenuation range) and 48~863MHz frequency range
⊙TS packet format input automatic detection and output configurable (188 or 204 bytes)
⊙PSI/SI tables regeneration
⊙PID filtering and re-mapping
⊙Local keyboard control and LCD display, or access via Ethernet link
★Application
⊙Re-multiplex for all DVB program Transport Stream related application
⊙DVB-C QAM modulation
★Compatible
⊙Re-multiplex for all DVB program Transport Stream related application
⊙DVB-C QAM modulation
★Specification
| Parameter | Symbol | Description | Unit | Remark |
| Mechanical dimension | ||||
| Height | H | 42 | mm | About 1U |
| Width | W | 434 | mm | About 17" |
| Depth | D | 340 | mm | |
| ASI Input | ||||
| Number of ASI input | - | 4 | ||
| Impedance | - | 75 | W | |
| Connector | - | BNC | NA | |
| Maximum bit rate | - | 108 | Mbps | |
| TS packet format | - | 188 or 204 | Byte | Automatic detection |
| Transmission format | - | Data packet or data burst | NA | |
| RF Output | ||||
| Impedance | - | 75 | W | |
| Connector | - | BNC | NA | |
| Frequency | - | 48~863 | MHz | Step 1MHz |
| Output level | - | >100 | dBuV | Adjustable attenuation of 0~15dB |
| Modulation Specification | ||||
| Modulation scheme | - | 16QAM~256QAM | NA | Support Annex- A/C |
| Symbol Rate | SR | ≤7 | Mbaud | |
| Bandwidth | BW | 8 | MHz | |
| Effective output bit rate | - | ≤51.6 | Mbps | |
| Modulation Error Rate | MER | ≥40 | dB | After equalizer, 64QAM |
| Bit Error Rate | BER | ≤1x10E-8 | After FEC, 64QAM | |
| Carrier to Noise | C/N | ≥45 | dB | |
★Ordering Information
| Model Number | Description | ||
| DT-DQAM-M3204B | TS re-multiplexing and QAM modulator, 4 ASI inputs (up to 108Mbps for each channel ), RF output and RF testing port, 16~256QAM scheme with 48~863MHz frequency, SR 5~7Mbaud |
