Low Latency DVB Modulator with 8-12 SDI Inputs | HDM-12220 series
BLANKOM
The BLANKOM HDM-12220 and HDM-08220 HD Encoder/Modulators are a fully integrated, carrier-grade platform designed for modern broadcast, IPTV, and Headend deployments. Combining encoding, multiplexing, scrambling, and RF modulation in a single high-density chassis, it delivers exceptional efficiency and flexibility for multi-channel operations.
Key Features
12/8 × HD-SDI Inputs with Closed Captioning
Supports 12 or 8 HD-SDI sources, each with embedded or external CC, providing robust ingest for professional broadcast environments.Multi-Source Input Architecture
1 × DVB-C tuner input
Up to 512 IP streams via Data1 (GE) port
Enables hybrid workflows and seamless integration into existing headends.
Advanced Output Modulation
DVB-C RF output: up to 16 non-adjacent carriers
DVB-T RF output: up to 8 non-adjacent carriers
Ideal for cable and terrestrial distribution networks requiring multi-carrier delivery.
MPTS Mirroring Over IP
16 MPTS mirrored for DVB-C mode
8 MPTS mirrored for DVB-T mode
Delivered via Data2 (GE) for reliable IP backbone distribution.
ASI Output
One ASI output is available as a real-time mirror of any selected MPTS, offering maximum interoperability with legacy systems.
| Features | 12 or 8 HD-SDI Inputs |
|---|---|
| Ordering guide | HDM-12220C: 12 SDI Inputs, 16 DVB-C Carriers |
Low Latency DVB Modulator with 12 or 8 HD-SDI Inputs, DVB-C, DVB-T, ISDB-T, or ATSC Outputs
BLANKOM HDM-08220 and HDM-12220 are high-integration professional modulators that combine encoding, multiplexing, and modulation into a single unit. Available for all common modulation standards, it has several input and output combinations. Besides the HD-SDI inputs, the signals can also be fed through the IP, ASI and USB inputs. All the available content can be multiplexed into several packets and modulated into RF carriers.
BLANKOM HDM-12220C QAM Modulator (DVB-C Modulator)
Key Features
BLANKOM HDM-12220 and HDM-08220 are low-latency RF modulators that have HDMI, IPTV, ASI, and RF inputs for video channels; encoders for video signals; multiplexers; and RF modulators for various standards.
They are in a 1U case for 19-inch rack cabinets.
To meet customers’s various requirements, the units can be easily configured over a web interface.
BLANKOM HDM-12220C QAM Modulator (DVB-C Modulator) front panel
BLANKOM HDM-12220C QAM Modulator (DVB-C Modulator) rear panel
Function: DVB Modulator
Technical Specifications
Input
• 12× or 8× HD-SDI with Closed Caption
• 1 × DVB-C tuner (ATSC optional), F-type
• Up to 512 IP streams (UDP/RTP, DATA1, RJ45) – DVB-C
• Up to 256 IP streams (UDP/RTP, DATA1, RJ45) – DVB-T/ATSC
• Up to 192 IP streams (UDP/RTP, DATA1, RJ45) – ISDB-T
Video
• Input Resolutions: 1080p60/50, 1080i60/50, 720p60/50, 480i60, 576i50
• Output Resolutions: 1080p/i, 1440×1080i, 1280×720p, 720×576p/i, 720×480p/i, 320×240, 320×180, 960×540i, 704×576i, 704×480i, 640×576i, 640×480i, 544×576i, 544×480i
• MPEG-2 & MPEG-4 AVC/H.264 encoding
• Bitrate: 0.8–19 Mbps (H.264), 1–19 Mbps (MPEG-2)
• Rate Control: CBR / VBR
• GOP: B-frames 0–3, P-frames 0–6
• Processing: De-interlacing, noise reduction
Audio
• MPEG-1 Layer II, MPEG-2 AAC, MPEG-4 AAC
• Dolby Digital AC-3 (2.0) encoding (optional)
• AC-3 (2.0/5.1) passthrough
• 48 kHz sampling, 64–320 kbps
Multiplexing/Processing
• Up to 256 PIDs per channel
• PID remapping (auto/manual)
• Accurate PCR adjustment
• PSI/SI table generation
Scrambling
• Up to 4 SimulCrypt CA systems
• Standards: ETR289, ETSI 101197, ETSI 103197
• Local/remote management
RF Modulation
DVB-C
• 16 non-adjacent carriers (up to 192 MHz)
• EN 300 429 / ITU-T J.83 A/B
• MER ≥ 40 dB
• 50–960 MHz (1 kHz step)
• Output: –20 to +10 dBm (0.1 dB step)
• SR: 5.0–7.0 Msps
• QAM: 16/32/64/128/256 (A), 64/256 (B)
DVB-T
• 8 non-adjacent carriers (192 MHz)
• EN 300 744
• FFT: 2K / 4K / 8K
• Bandwidth: 6/7/8 MHz
• QPSK / 16QAM / 64QAM
• GI: 1/4 / 1/8 / 1/16 / 1/32
• FEC: 1/2–7/8
• MER ≥ 42 dB
• –20 to +10 dBm (0.1 dB step)
ATSC
• 8 non-adjacent carriers
• ATSC A/53
• 6 MHz bandwidth
• 8VSB
• FEC: RS(208/188)+Trellis
• MER ≥ 40 dB
• ACL: –55 dBc
• –20 to +10 dBm (0.5 dB step)
ISDB-T
• 6 non-adjacent carriers
• ARIB STD-B31
• 6 MHz bandwidth
• QPSK / 16QAM / 64QAM
• GI: 1/32 / 1/16 / 1/8 / 1/4
• 2K / 4K / 8K modes
• Code rate: 1/2–7/8
• MER ≥ 40 dB
• –20 to +10 dBm (0.1 dB step)
Stream Output
• 1 × ASI output, mirror of any RF carrier
• 16 × MPTS over UDP/RTP/RTSP (DVB-C mode)
• 8 × MPTS over UDP/RTP/RTSP (DVB-T/ATSC, optional)
• 6 × MPTS over UDP/RTP/RTSP (ISDB-T, optional)
• 1 × 1000M Ethernet (Base-T)
System
• Web-based management
• English User Interface
• Firmware upgrade via web
General
• Size: 482 × 440 × 44 mm
• Operating Temp: 0–45°C
• Storage: –20–80°C
• Power: AC 110V±10% / AC 220V±10%, 50/60 Hz
Specifications are subject to change without prior notice.
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