QAM Modulator QTX-2
The QTX-2 device is designed to form 8 transport streams in DVB-C format, transmit selected channels to the frequencies and transmit them to the cable television network. Up to 8 STV-Crypt conditional access system scramblers can be included in the device, which allows organizing a paid access system for watching television programs in cable television networks with the SCR-1 (Scrambler Controller) device. The presence of the built-in multiplexer allows you to transfer programs from any of the inputs of the transport stream (4xASI, 1xGbE) to any output (8xQAM (16-256), 1xGbE). Control and configuration via 100 Mbps Ethernet (web browser). Support for Simple Network Management Protocol (SNMP) allows you to monitor the current state of the device.
| Specifications | QTX-2 | QTX-2Х |
| Number of input interfaces ASI / IP | 4(BNC, 75Om)/1хGbE | 4(BNC, 75Om)/2хGbE |
| IP protocol | DVB over UDP/RTP | |
| Number of QAM channels | 8 | 16 |
| Modulation Type | QAM16- QAM256 | |
| Symbol rate range | 5-7MS / s | |
| MER | >46dB | |
| Frequency rate range | 47-1000 MHz | |
| Output level | 75-105 dB/mkV | |
| Suppression of out-of-band emissions | 60 dB (channel-to-channel operation) | |
| PID filtering | + | |
| PID remapping | + | |
| Management and control | 100BASE—TX, protocols HTTP/WEB interface, SNMP | |
| Power supply | 100-240В AC, 50/60 Hz, <40W | |
