Broadcast
Front panel, with the 8 / 16 / 24-channel rear configurations
Broadcast / Transmission
Digital TV Modulator
EM-536SV2 is a professional, high-integration device combining encoding (and de-modulation), multiplexing and modulation in one 1U case. It accepts 8/16/24 HDMI inputs (or HDMI mixed with tuner inputs), 1 ASI input, 1 USB player input and 128 IP inputs over the GE port, and outputs multiple carrier channels.
Overview
Product overview
EM-536SV2 is a professional, high-integration device combining encoding (and de-modulation), multiplexing and modulation in one 1U case. It accepts 8/
EM-536SV2 is a professional, high-integration device combining encoding (and de-modulation), multiplexing and modulation in one 1U case. It accepts 8/16/24 HDMI inputs (or HDMI mixed with tuner inputs), 1 ASI input, 1 USB player input and 128 IP inputs over the GE port, and outputs multiple carrier channels.
It also provides MPTS output as a mirror of the carriers over the GE port, and 1 ASI out as a mirror of one carrier. The combination makes it suitable for a small CATV head end, a hotel TV system, a sports bar, or a hospital or apartment distribution system.
Key features
- 8/16/24 HDMI inputs, or HDMI mixed with DVB-S/S2/S2X/C/T/(T)/ISDB-T tuners
- HEVC/H.265 and MPEG-4 AVC/H.264 video encoding
- 1 ASI input for re-mux
- 1 USB player for TS playback (FAT32, "xxx.ts")
- 128 IP inputs over UDP and RTP via the GE port
- Up to 32 IP inputs per carrier channel
- Audio gain adjustment
- 16/32-channel DVB-C RF out (8/16 DVB-T, 16/32 ATSC, 16 ISDB-T as options)
- ASI out as a mirror of one RF carrier (optional)
- MPTS or SPTS output over UDP, RTP/RTSP
- LOGO, caption and QR-code insertion
- PID remapping, accurate PCR adjusting, PSI/SI editing
- Web management, with firmware update over the network
Principle chart
How the signal moves through the unit, from the inputs on the left to the outputs on the right.
Specification
GWC-MOD — Digital TV Modulator
Description
A high-integration unit that combines encoding, multiplexing and modulation in one 1U case, taking HDMI, tuner and IP inputs and outputting multiple carrier channels.
EM-536SV2 encoder modulator. Parameters below are the released figures.
Technical specifications
| Input | |
|---|---|
| HDMI inputs | 8 / 16 / 24 for option, or HDMI mixed with tuner inputs |
| ASI input | 1, for re-mux |
| USB player | 1, plays "xxx.ts" video (file system FAT32) |
| IP input | 128 over UDP and RTP, GE port, RJ45 |
| Video (HDMI input) | |
| Resolution | |
| Input | 1920×1080_60P / 60i, 1920×1080_50P / 50i, 1280×720_60P / 50P, 720×576_50i, 720×480_60i |
| Output | 1920×1080_30P / 25P, 1280×720_30P / 25P, 720×576_25P, 720×480_30P |
| Encoding | HEVC/H.265, MPEG-4 AVC/H.264 |
| Bit-rate | 1–13 Mbps per channel |
| Rate control | CBR / VBR |
| GOP structure | IP…P (P-frame adjustment, no B-frame) |
| Audio (HDMI input) | |
| Sampling rate | 48 kHz |
| Resolution | 24-bit |
| Audio gain | 0–255, adjustable |
| Bit-rate | 48 / 56 / 64 / 80 / 96 / 112 / 128 / 160 / 192 / 224 / 256 / 320 / 384 kbps |
| Tuner section | |
| DVB-S2 | |
| Input frequency | 950–2150 MHz |
| Symbol rate | QPSK/8PSK/16APSK: 0.5–45 Msps; 32APSK: 0.5–40 Msps |
| Constellation | QPSK / 8PSK / 16APSK / 32APSK |
| Max input bitrate | ≤170 Mbps per tuner |
| DVB-S2X | |
| Symbol rate | QPSK/8PSK/16APSK: 0.5–45 Msps; 8APSK/32APSK: 0.5–40 Msps |
| Constellation | QPSK / 8PSK / 16APSK / 8APSK / 32APSK |
| Signal strength | -65 to -25 dBm |
| Multiplexing | |
| Maximum PID remapping | 256 inputs per channel |
| Function | PID remapping (automatic or manual), accurate PCR adjusting, automatic PSI/SI table generation |
| Modulation — DVB-C | |
| Standard | EN300 429 / ITU-T J.83A/B |
| QAM channels | 16 / 32 non-adjacent carriers (max bandwidth 192 MHz) |
| MER | ≥40 dB |
| RF frequency | 50–960 MHz, 1 kHz step |
| RF output level | -20 to +3 dBm, 0.1 dB step |
| Symbol rate | 5.0–7.0 Msps, 1 ksps stepping |
| Constellation | J.83A: 16/32/64/128/256QAM; J.83B: 64/256QAM |
| Bandwidth | J.83A: 8M; J.83B: 6M |
| Modulation — DVB-T | |
| Standard | EN300744 |
| FFT mode | 2K, 4K, 8K |
| Bandwidth | 6M, 7M, 8M |
| Constellation | QPSK, 16QAM, 64QAM |
| Guard interval | 1/4, 1/8, 1/16, 1/32 |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| MER | ≥42 dB |
| RF output | 8 or 16 non-adjacent carriers (max bandwidth 192 MHz) |
| RF output level | -28 to -3 dBm, 0.1 dB step |
| Modulation — ATSC | |
| Standard | ATSC A/53 |
| Bandwidth | 6M |
| Constellation | 8VSB |
| FEC | RS(208 188) + Trellis |
| MER | ≥40 dB |
| ACL | -55 dBc |
| RF output | 16/32 non-adjacent carriers (max bandwidth 192 MHz) |
| Modulation — ISDB-T | |
| Standard | ARIB STD-B31 |
| Bandwidth | 6M |
| Constellation | QPSK, 16QAM, 64QAM |
| Guard interval | 1/32, 1/16, 1/8, 1/4 |
| Transmission mode | 2K, 4K, 8K |
| Code rate | 1/2, 2/3, 3/4, 5/6, 7/8 |
| RF output | 16 non-adjacent carriers (max bandwidth 192 MHz) |
| Stream output | |
| ASI output | 1, as mirror of one RF carrier (optional) |
| MPTS output | Over UDP and RTP/RTSP, as mirror of the modulation carriers |
| SPTS output | 64, on models of 32ch DVB-C, 16ch DVB-T, 32ch ATSC and 16ch ISDB-T |
| Ethernet | 1 × 1000M Base-T, GE port |
| System | |
| Management | Web-based NMS; one NMS port manages all input modules; LCD and keyboard |
| Languages | Chinese and English |
| Upgrade | Ethernet software upgrade |
| Miscellaneous | |
| Dimensions (W×L×H) | 482 mm × 328 mm × 44 mm |
| Environment | 0–45 °C operating; -20–80 °C storage |
| Power | AC 110 V ±10%, 50/60 Hz; AC 220 V ±10%, 50/60 Hz |
Ordering guide
Configurations can be combined. Give us the input mix and the output standard and we will confirm the model code.
| Configuration | HDMI | DVB-S2 / S2X | DVB-C / T / T2 / ISDB-T |
|---|---|---|---|
| Option 1 | 8 | / | / |
| Option 2 | 16 | / | / |
| Option 3 | 24 | / | / |
| Option 4 | 8 | 8 | / |
| Option 5 | 8 | 16 | / |
| Option 6 | 16 | 8 | / |
| Option 7 | 8 | / | 8 |
| Option 8 | 8 | / | 16 |
| Option 9 | 16 | / | 8 |
| Option 10 | 8 | 8 | 8 |
| Option 11 | 16 | 4 | 4 |
Applications
- Terrestrial digital TV coverage
- Community and rural networks
- Operator transmission sites
- Regional broadcast expansion
- Hotel and campus headends
Documentation
Full datasheets, including port detail, power specification and installation notes, are provided on request. Tell us the model and the destination market so we send the correct revision.
Datasheet and user manual
We send the full datasheet on request, so you receive the revision that matches the unit you actually have.
Related
Used with
These are the units that normally sit either side of the digital tv modulator in a build.
Broadcast
Broadcast
Specify this model into your project
Send the scale and the site type. We will confirm the configuration and a factory price.