Equipment for digital broadcasting organization Modulator QAM QTX-2
The company "Spets-TV" presents a new development - a digital modulator QAM for cable television QTX-2. This product is intended for formation of 8 transport streams in DVB-C format, transfer to the frequencies of selected TV channels and transmitting them to the cable network.
Also device can contain up to 8-scramblers of conditional access system «STV-Crypt», which allows you to organize a system of online access to view television programs on cable network with SCR-1e (Scrambler Sontroller).
The device allows you to create up to 120 MPEG streams (SD, HD, MPEG-2, MPEG-4, SPTS, MPTS) for organization IPTV services in IP networks.
The built-in multiplexer allows you to transfer programs from any input of the transport stream (4 x ASI, 1 x IP (1 Gbit)) to any output (8 x QAM (16-256), 1 x IP (1Gbit)).
Control and configure the device is made through the 100 M/bit Ethernet (WEB-control) using the Opera 11 (or similar, allowing to work with WEB pages). All changes and settings are stored in the device.
| Transport stream Inputs | |
| Number of input ASI interfaces | 4(BNC, 75Om) |
| Number of input IP, interfaces 100BASE-TX/1000BASE-T (IEEE 802.3) | 1(RJ-45) |
| IP interface input speed | up to 615Mbit/s |
| IP input protocol | DVB over UDP/RTP |
| ASI input speed range | up to 216Mbit/s |
| QAM Modulator | |
| Number of QAM channel | 8 |
| Modulation type | QAM16- QAM256 |
| Symbol speed range | 5-7МS/s |
| MER | >46dB |
| Frequency range | 47-1000 МHz |
| Frequency spacing of a group of 4-QAM channels |
up to 70MHz |
| Tuning step |
On the grid of TV channels or 62.5 kHz steps |
| Input level | 75-95 dB/µV |
| Suppression of Spurious Emissions |
over 65dB |
| IF interface | 75Ω, F-conn |
| Multiplexing | |
| PID filtering | + |
| PID remapping | + |
| PRC regeneration | + |
| Automatic generation of tables PSI | + |
| Routing any input to any output | + |
| Controls | |
| 100BASE-TX, protocols HTTP / WEB interface, the control display on the front panel | |
| Power supply | |
| Voltage | 100-240V AC, 50/60 Hz |
| Power consumption | up to 40W |