Description
A digital HDMI modulator is a device that converts HDMI signals into radio frequency signals (RF), mainly used to distribute high-quality digital video and audio signals to multiple display devices. It is commonly used in hotels and hospitals, educational institutions, sports venues and public places, corporate environments, home theater systems, and so on.
These application scenarios utilize the capabilities of digital HDMI modulators to achieve efficient allocation and management of high-definition signals, improving user experience and operational convenience.
Our digital HDMI modulator can generate DVB-T/C format (digital terrestrial television) signals from the HDMI input. H264 encoding, DVB-T/C modulation integrated device, converts HDMI signals into DVB-T/C RF output. It is equipped with one channel HDMI input, HDMI out(HDMI pass-though), and one DVB-T/C RF output.
This digital HDMI modulator uses modulation DVB-T/C parameters to adjust the compression rate to the available bandwidth.
It converts HDMI signals into DVB-T/C RF outputs and IR return paths to allow channel switching from other rooms. Can easily control remote control signals through coaxial cables. Long transmission distance, simple installation, plug and play .
Specification
| Place of Origin:Guangdong,China | |
| Model Number:GDM-034 | |
| DESCRIPTION：HD DVB-T/C Modulator | |
| SOURCE INPUT | |
| ·Input Channel | :1 |
| ·Video | :HDMI |
| ·Video System | :480i/p,576i/p,720p,1080i/p |
| ·Audio | :HDMI |
| COMPRESSION | |
| ·Video | :H.264 Baseline Profile Level 4.0 |
| ·Video Resolution | :1080p 25/ 30 Max |
| ·Video Bit Rate | :12 Mbps Max. |
| ·Audio | :MPEG-2/AAC |
| ·Editable Field | :Service Name, TS ID,Network ID, Original NET ID,LCN,Network Name. |
| MODULATION | |
| ·Standard | :DVB-C(ETSI EN 300429V1.2.1) |
| ·Constellation | :256QAM,128QAM,64QAM,32QAM,16QAM |
| ·Symbol rate | :2~6.96 MSymbols |
| ·Bandwidth | :6MHz,7MHz,8MH |
| ·Standard | :DVB-T (ETSI EN 300744 V1.5.1) |
| ·Constellation | :QPSK,16QAM,64QAM |
| ·Guard Interval | :1/4,1/8,1/16,1/32 |
| ·Code Rate | :1/2,2/3,3/4,5/6,7/8 |
| ·FFT Carrier Mode | :2K,8K |
| ·Bandwidth | :6MHz,7MHz,8MHz,7~8MHz |
| RF OUTPUT | |
| ·Type | :1 Multiplex DVB-T/C With a Digital TV Service |
| ·Frequency | :177～858 MHz |
| ·MER | :30 dB Min |
| ·Output Level | :100 dBuV |
| ·RF Level Adj | :0dB～-20dB |
| ·Attenuation Step | :1dB Per Step |
| GENERAL | |
| ·POWER SUPPLY | :12V 1.0A ADAPTOR |
| ·DISPLAY | :LCD panel @ 2 x16 Characters |
| ·ENVIRONMENTAL FOR OPERATING | |
| Temperature | :5℃-40℃ |
| Relative Humidity | :80%@30℃ |
| ·DIMENSIONS | :172 x113 x32 mm |
| ·CONFIGURATION | :6 Local keys on front panel |
| CONNECTIONS | |
| ·HDMIIN | :HDMI IN |
| ·HDMI OUT | :HDMI Pass Through |
| ·RF Output | :1 DVB-T/C RF Outputs |
| ·DC Switch | :Power supply 9 volts DC for IR pass |
| ·RF Input | :RF Combiner |
| ·USB | :Fimware Upgrade |
Excellent digital HDMI modulator manufacturer serves you
Goodmind Electronics (Shenzhen) Co., Ltd. was established in 1992 with a registered capital of 18 million U.S. dollars. Its own factory is located in Shenzhen and has more than 1000 employees. It is a high-tech enterprise integrating R&D, production, sales and service , The company specializes in Antenna / Network Communication / Bluetooth / AV Accessories / Smart Home / Car Accessories professional manufacturing company. The factory is vertically integrated. The factory has plastic processing, metal stamping, zinc die casting, SMT , DIP and Assembly center. The company has strong financial strength, professional R&D team, excellented manufacturing equipment and lean manufacturing, and is dedicated to creating high-quality products for customers.
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How to choose the appropriate digital HDMI modulator for us
Compatibility and technical specifications
Resolution and refresh rate support: Ensure that the modulator supports the resolution (such as 1080p, 4K) and refresh rate (such as 60Hz) you need.
Audio format: Confirm that the modulator supports the required audio formats (such as Dolby Digital, DTS).
Interface type: Ensure that the HDMI interface of the modulator is compatible with your source device and supports the number of inputs and outputs you need.
Frequency range and channel selection
RF frequency range: Check the RF frequency range of the modulator to ensure it is suitable for your application environment.
Channel configuration: Select a modulator that supports multiple channels to avoid interference with other devices.
Function and Features
Multiple signal input: If you need to connect multiple HDMI source devices to a modulator, choose a model that supports multiple inputs.
Remote management and monitoring: Consider modulators with remote management and monitoring capabilities to facilitate centralized management in large systems.
Firmware updates and technical support: Ensure that the modulator supports firmware updates and has good technical support and after-sales service.
Specific application scenarios
Hotels and Hospitals: Choose modulators that support multi room signal distribution and management functions.
Educational institutions: Choose modulators that are easy to operate and maintain, suitable for use in multi classroom environments.
Enterprise environment: Choose modulators that support high-definition meetings and multimedia displays to ensure signal quality and stability.
In hotel rooms, high-definition content (such as TV programs, movies, etc.) can be distributed to the televisions in each room through an HDMI modulator through a central media player. In this way, guests in each room can enjoy high-quality audio and video services.
Connection instructions
Media player: The source device is connected to the HDMI modulator via an HDMI cable.
HDMI modulator: converts HDMI signals into radio frequency signals (RF) for distribution to multiple receiving devices through antennas.
TV: Receive signals from HDMI modulators through RF input and display corresponding content.
Remote control: used to switch channels and control other functions of modulators or televisions.
Antenna: Used to distribute the RF signal of the modulator to the receiving devices within the coverage range.
This setting allows multiple display devices to receive high-definition content from the same signal source, making it suitable for scenarios that require centralized management and distribution of video signals.
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FAQ
Q:Can a Digital HDMI Modulator be used with existing coaxial infrastructure?
A:Yes, Digital HDMI Modulators are designed to work with existing coaxial cable networks, making them ideal for retrofitting older systems with modern digital signals.
Q:What is the power consumption of a Digital HDMI Modulator?
A:Power consumption varies by model and features. Generally, modern Digital HDMI Modulators are designed to be energy-efficient with low power consumption. Specific power consumption details can be found in the product specifications.
Q:What resolutions do Digital HDMI Modulators support?
A:Most modern Digital HDMI Modulators support resolutions up to 1080p and 4K, depending on the model and manufacturer. Refer to the product manual to confirm supported resolutions.
Q:What is the lifespan of a digital HDMI modulator?
A:The lifespan of the modulator depends on the usage environment and maintenance conditions. Generally speaking, high-quality digital HDMI modulators can be used for several years under good maintenance. Regular inspection and cleaning of equipment to ensure good ventilation and heat dissipation can extend its service life.
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