Product Introduction
Highlights
Title:HDMI QAM modulator
Model:DMB-9581E
1: Various Signal source mixed input----- customization for more application scenarios
It can be 1: different tuner standard DVB-SS2/TT2/C/ISDB-T/ATSC/DTMB
Or 2: Tuners+HDMI input
Or 3: Tuners+HDMI+CVBS input
IP and ASI input is default input
2: Multi tuners standard supported---different tuners standard mixed input,for example DVB-SS2+DVB-TT2+HDMI
3: High Encoding Compression efficient---H.265 HEVC/H.264 encoding formation option
4: Multi-Carriers Version option---4/8/16 QAM 32 QAM DVB-C out option accordingly the programs channels quantity.
Overview
DIGICAST Encoder mdolator series that transforms a digital video and audio (HDMI) signal/IP/ASI into a modulated FullHD (MPEG-4/H.264) signal into a DVB-T/C/ATSC/ISDB/DTMB channel. The input digital signal comes from an external SD/HD source: satellite receiver, DVR/NVR, DVD, CCTV, etc.
The channel generated by the HDMI source can be mixed with the DTT signal and then distributed over a single coaxial cable. Its content can thus be displayed on all the receiving devices of the system.it is the idea solution for inserting more programs from loca/internet to existing coaxial sytem, widely used in hotel/hospital/shopping mall …or CATV operators system.
FAQ
Professional HDMI to RF Modulator Solutions for TV Signal Distribution
A HDMI to RF Modulator is a professional video distribution device that converts HDMI video signals into RF TV channels for transmission through existing coaxial cable networks. It allows users to distribute HDMI sources such as satellite receivers, media players, cameras, computers, and digital signage systems to multiple televisions without installing additional HDMI cables.
Our HDMI RF Modulator solutions are designed for commercial and professional applications including hotels, hospitals, schools, campuses, restaurants, residential buildings, and CATV distribution systems.
What Is an HDMI to RF Converter?
An HDMI to RF Converter (also called an HDMI RF Modulator or HDMI Coax Modulator) converts a high-definition HDMI input signal into a digital RF output signal that can be received by standard TVs through coaxial cables.
Instead of connecting each TV directly to an HDMI source, one HDMI source can be converted into a TV channel and distributed throughout an existing coaxial TV network.
How HDMI RF Modulation Works
HDMI Source
↓
HDMI to RF Modulator
↓
RF / Coaxial Cable Network
↓
Multiple TVs Tuned to the Same Channel
This makes HDMI RF modulation an efficient solution for large-scale TV distribution projects where long-distance transmission and multiple displays are required.
Key Features of HDMI RF Modulators
Convert HDMI Signals into Digital TV Channels
Our HDMI RF modulators support HDMI video input and convert the signal into broadcast-quality RF channels compatible with professional TV distribution systems.
Distribute HDMI Video to Multiple TVs
Using existing coaxial cable infrastructure, one HDMI source can be delivered to multiple televisions across hotels, schools, hospitals, and commercial buildings.
Support Multiple Digital TV Standards
Depending on the model, HDMI RF modulators can support different modulation standards including:
DVB-T / DVB-T2
DVB-C
ATSC
ISDB-T
DTMB
This allows flexible deployment in different countries and broadcasting environments.
High-Quality HD Video Transmission
HDMI RF converters support HD video formats and provide stable signal conversion for professional applications such as hospitality TV systems, security monitoring displays, and educational video networks.
HDMI to RF Modulator Applications
Hotel TV Distribution System
Hotels can distribute satellite channels, welcome videos, promotional content, and entertainment programs to guest rooms through existing coaxial networks.
Hospital TV System
Hospitals can provide centralized TV programming and information channels across patient rooms and public areas.
School and Campus Video Distribution
Schools and universities can distribute training videos, announcements, and educational programs to multiple classrooms.
Digital Signage and Commercial Displays
Retail stores, restaurants, and public facilities can broadcast advertising content and information screens to multiple displays.
Security Monitoring System
HDMI RF modulators can distribute camera monitoring feeds to multiple TVs located in different areas.
Why Choose HDMI RF Modulator Instead of HDMI Splitter?
An HDMI splitter only duplicates HDMI signals over short distances and requires separate HDMI cables for each display.
An HDMI RF Modulator converts HDMI signals into TV channels, allowing:
Longer transmission distances
Existing coaxial cable reuse
Multiple TV connections
Centralized video management
Lower installation costs
HDMI RF Modulator Product Options
We provide different HDMI RF modulation solutions according to project requirements:
Single Channel HDMI RF Modulator
Suitable for:
Small hotels
Home TV distribution
Retail displays
Training rooms
Multi-Channel HDMI RF Modulator
Suitable for:
Large hotels
IPTV headends
Campus TV systems
Commercial broadcasting networks
Multi-channel solutions can combine multiple HDMI inputs and generate multiple RF channels for large-scale TV distribution.
How to Choose an HDMI to RF Converter?
Before selecting an HDMI RF Modulator, consider:
1. Number of HDMI Sources
Choose a single-channel or multi-channel HDMI modulator depending on how many HDMI devices need to be distributed.
2. TV Distribution Scale
Consider the number of televisions, cable distance, and RF output requirements.
3. Modulation Standard
Select DVB-T, DVB-C, ATSC, ISDB-T, or other standards according to your local TV system.
4. Application Environment
Hotels, hospitals, schools, and enterprise networks may require rack-mounted professional solutions with higher reliability.
Buy HDMI to RF Modulator for Professional Video Distribution
Our HDMI to RF Modulator solutions provide reliable HDMI-to-coax conversion for professional TV distribution projects worldwide.
Whether you need a hotel TV system, campus video network, CATV headend upgrade, or commercial HDMI distribution solution, our HDMI RF converters provide a scalable and cost-effective way to deliver HD video to multiple televisions.
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Specifications
Video Specifications
Video compression: MPEG-4 AVC/H.264
Video inputs: Version 1: 4/8/12/16/20/24*HDMI for option
Version 2: HDMI+Tuner Mixed input
The Input Resolution:
1920×1080@60P, 1920×1080@60i, 1920×1080@50P, 1920×1080@50i,
1280×720@60P, 1280×720@50P, 720×576@50i, 720×480@60i
The Output Resolution(Max 1080P@60 FPS):
1920×1080@60P,1920×1080@50P,1920×1080@30P,1920×1080@25P, 1280×720@30P,1280×720@25P, 720×576@25P, 720×480@30P
Inputs and Outputs
ASI Input/out
Channel: 2*ASI(Independent) input/output
Interface: BNC, 75 ohm
Signal level 200-800mVp-p
Packet length: 188 bytes
Maximum bit-rate: per port ≤100Mbps
Packet mode: Byte mode
IP Input/Output
RJ45 Port, 100/1000M GigE Port
Simultaneous output with 127*SPTS + 1*MPTS (4*RF Output)/ 8*MPTS (8*RF / 16*RF DVB-C Output)
DVB-C Modulation(16 or 32 DVB-C out option)
16* DVB-C Output Modulation
Channel: 16*DVB-C adjacent frequency RF out
Frequency range:50~960MHz,1Khz one step
Bandwidth range 192 Mhz between start frequency and end frequency,set 16 frequency within 192 Mhz bandwidth range
MER≥40 dB
symbol rate:5~7Mbaud
total output level adjustment -35~-5dBm by 0.1 dB step
DVB-C Standard J83.A (DVB-C, J83.B, J83.C)
Constellation (QAM):16,32,64,128, 256
|
Carrier |
Annex A |
Annex B |
Annex C |
|
|
Constellation (QAM) |
16,32,64,128, 256 |
64 |
256 |
64/256 |
|
Bandwidth (Mhz) |
8 |
6 |
6 |
6 |
|
Symbol Rate ( Mbaud) |
5-7 |
5.057 |
5.361 |
4.2-5.3 |
FAQ
How long is your warranty?
Normally Digicast provide five years after sale service with its quality issue and lifetime technical support.
Why do I choose you as our products supplier?
DIGICAST is building up both domestic and overseas markets while making a good contribution to the TV broadcasting industry,which is the domestic first-class of professional video operating system products and technical service providers
Can we get a quote on an item?
Sure, we understand that you may require a quote on each item sometimes. Please email us or call us at info@digicast.cn and we will respond to you with a quote.
How can I get technical support help?
Send us e-mail or use whatsapp to contact the sale service. Our technical support staff will try to answer in a timely manner
What kind of shipping way for the sample and the shipment?
Normally we will ship by air express, such as DHL, FedEx,UPS or depends on the customers' needs.
When will my order be shipped?
Usually, we will arrange the delivery within 3-5 working days after receiving payment, if there are some customized requirements or the batch orders, Please confirm with sales representative
What are my payment choices?
we can accept payment by bank transfer, T/T, Paypal (5% extra fee), western union, Alibaba assurance order optional
Can you do OEM for us?
Yes. If there is a certain order quantity, we can do OEM including printing, logo, and customized model for you.
