Compact HDMI-compliant modulator with loop-out and IR so you can change the source Set Top Box from a different one via a Television. However, you can still use this modulator with any HDMI source like Blu-Ray, Apple TV, ROKU, PC, etc.
You can connect any amount of TV's you want to the RF output and view your programs over your existing coax network in up to 1080p resolution. You can also inject an RF input into the modulator, like an Antenna, and then add your HDMI-sourced product to inject into the ATSC channel lineup on a vacant frequency. This added accessibility along with the IR and digital link passing through your coax network will make adding programs, and adjusting the channel on your STB an easy-to-use solution.
Furthermore, the modulator also has an HDMI loop-out so if you have your unit stationed near a TV, and use the IR to control a second TV, the first TV can be fed with the HDMI input for monitoring or viewing. There is an LCD display with easy-to-use buttons, and of course, there is an RJ45 input so you can add your modulator to the LAN and control it through a WEB GUI. This unit also has all the major RF modulation standards built in, QAM(J83A/B), ATSC, ISDBT, and DVBT.
H-HDMI-RF-Petit-IR
Encoding Section-Video | |
Encoding | MPEG2 |
Interface | HDMI x 2 (1×input/1×loop out) |
Resolution | Input: 720@50p,720@60p 1080@50I/P,1080@60I/P Output: up to 1080p30 |
Bit rate | 5-25Mbps |
Encoding Section-Audio | |
Encoding | MPEG-1 Layer2, AAC, AC3 |
Sample rate | 48KHz |
System | |
Management | LCD + Control buttons/Ethernet Web GUI |
Modulation | |
MER | Typ. 35dB |
RF range | 50~950MHz, 1KHz step |
RF output level | 100dBμV (30dB attenuation) |
Standard | ATSC |
Constellation | 8VSB |
Standard | QAM J.83B, annex A , DVB-T, ISDB-T |
Constellation | 64QAM, 128QAM, 256QAM |
IR return path connections | |
RF output | 2 RF outputs (one providing accessory power supply 9 Volts DC for IR pass) |
DC switch | Power supply 9 Volts DC for IR pass |
IR OUT | IR emitter output |
General | |
Power supply | DC 12V 1A |
Dimensions | 225*105*41mm |
Weight | 680g |
CATV RF Modulation Technologies: A Comprehensive Overview of Standards and Distribution
Introduction:
Cable Television (CATV) distribution relies on advanced Radio Frequency (RF) modulation technologies to deliver a multitude of channels seamlessly over coaxial networks. The modulation standards vary across countries, contributing to the diversity of CATV technologies worldwide. This article delves into the distinctions between modulation standards such as Off Air 8VSB ATSC, DVB-C Annex B, DVB-T, and ISDB-T, shedding light on their bandwidths, encoding formats, and the indispensable role of amplifiers in ensuring reliable signal distribution.
Modulation Standards Across Continents:
CATV RF distribution employs different modulation standards in various regions. In the United States, Mexico, Canada, and some Latin American countries, Off Air 8VSB ATSC is a prevalent standard. Its bandwidth, with a data rate of 19.3 Mbps, allows for high-quality signal transmission. Conversely, DVB-C Annex B is utilized in the US, Canada, and Mexico, with QAM 256 providing a robust 38 Mbps data rate, and QAM 64 delivering 27 Mbps.
In Europe, the Middle East, and Africa, DVB-T is the standard of choice. This standard accommodates different bandwidths, providing a flexible solution for diverse broadcasting needs. Meanwhile, Japan and countries like Chile and Argentina leverage ISDB-T, showcasing the adaptability of CATV technologies to regional preferences.
Encoding Formats and Compression Techniques:
The encoding formats play a pivotal role in determining the efficiency of signal transmission. In the United States, Mexico, and Canada, MPEG2 is commonly used, while H.264 is favored in other countries. These formats facilitate the compression of audio and video data, ensuring efficient utilization of available bandwidth.
Diversity in Audio Codecs:
CATV RF modulation technologies also exhibit diversity in audio codecs. Dolby AC3, MPEG2, and MPEG1 audio compression are commonly employed, each offering distinct advantages in terms of audio quality and bandwidth utilization. The choice of audio codec often depends on regional preferences and technological considerations.
Distribution Over Coaxial Networks:
Distributing multichannel content over coaxial networks is remarkably streamlined. Coaxial networks refer to the interconnected system of coaxial cables, splitters, taps, and combiners that facilitate the distribution of signals to individual households. Coaxial splitters divide the incoming signal into multiple paths, ensuring each subscriber receives their desired channels without signal degradation.
Coaxial Network Components:
Coaxial splitters, taps, combiners, and RF amplifiers are essential components of CATV distribution networks. Splitters divide the signal into multiple paths, taps allow controlled signal extraction, and combiners merge signals from different sources. RF amplifiers play a crucial role in overcoming signal attenuation and insertion loss, ensuring that the signal remains strong throughout the distribution network.
Understanding RF Amplifiers:
RF amplifiers are integral to CATV distribution networks. They boost the signal strength, compensating for losses incurred during transmission. RF insertion loss, resulting from cable attenuation and passive components like splitters and combiners, is effectively counteracted by strategically placed amplifiers along the distribution network.
Conclusion:
CATV RF modulation technologies form a sophisticated tapestry of standards and technologies, adapting to the unique requirements of different regions. Understanding the nuances of modulation standards, encoding formats, and distribution components is crucial for ensuring efficient and reliable CATV signal distribution over coaxial networks worldwide. As technology continues to evolve, CATV systems will likely witness further advancements, enhancing the quality and diversity of content delivered to viewers across the globe.
An HDMI RF modulator is a device that allows you to convert a digital HDMI video signal into an analog RF (radio frequency) signal. This can be useful in situations where you want to connect a device with an HDMI output (such as a Blu-ray player or video game console) to a television that only has an RF input (such as an older CRT TV). The modulator converts the HDMI signal into a format that the TV can understand, allowing you to view the HDMI source on the TV.
Could you please explain your question? What do you mean by 'Can you tell me the best way to pass audio through this device?'
HDMI carries embedded video and audio, and the modulator encodes both of those signals and outputs both as an RF modulated signal.
The TV tuner will find this channel and decode video and audio.
Is your application different?
If you would like to decode just Audio, you can use external Tuner with HDMI and RCA audio output :
https://thorbroadcast.com/product/qam-catv-rf-and-atsc-rf-to-hdmi-decoder-stb-8230.html
Thank you for your question. I think you may have slightly misunderstood the functionality of this device. This device allows you to use your own remote control, for example, from a DVD player located in a different room. Here's an example application: If you have a cable TV set-top box located in the garage, the HDMI cable will be connected to the modulator, which will generate a CATV RF channel and then connect to your coax cable network. The coaxial cable will distribute the created channels to all the TVs in your home. Now, you can use the remote control for your set-top box, which is in the garage, in a different room—for example, your living room. The small detector installed by the TV in the living room will transmit the IR signal over the coax back to the modulator, and the modulator will emit that signal to the set-top box. This way, you can control the set-top box remotely. Please let me know if this is clear
El Thor de Emisión H-2ADHD compacto HDTV modulador del codificador de que las salidas de RF/ASI/IP simultáneamente. Fácil de usar NMS interfaz gráfica de usuario le permite ajustar y manipular cualquier configuración a través de cualquier navegador web para el completo control autónomo del codificador. Soporta full HD 1080p60 la codificación de cualquier fuente que utiliza HDMI. El H-2ADHD lleva tanto la modulación estándares de ATSC, QAM y que son fáciles de cambiar entre con un simple menú desplegable de la opción dentro de la interfaz gráfica de usuario. Soporta QAM, ATSC ,DVB-T, ISDB-T modulaciones - es seleccionable
The Thor Compact RF-PETIT Digital Modulator is already designed to be sleek and easily installed anywhere. To make life easier, Thor Broadcast also has a compatible rackmount kit that can be installed in a 19" 1RU rack for simplicity. This rack system provides the horizontal racks that can quickly mounted to any 1RU rack; the multi-unit sets already come with the rack mount hardware so you can attached the rack ears to the Petit's and then fasten to the horizontal bars in the Rack. Easy to deploy and simple to setup, holes are pre-drilled in the units so you can get your units up and installed efficiently. This quick and easy installation process allows you to vertically mount up to 12 HDMI-RF-PETIT units in a rack with easy access to the inputs and outputs of the device.