Satellite Master Antenna Multiswitch (SMATV)
A Satellite Master Antenna Multiswitch (SMATV) system is a centralized distribution system used to receive and distribute satellite television signals to multiple television receivers or subscribers within a building or a complex of buildings. It is commonly employed in hotels, apartment buildings, hospitals, residential communities, and other multi-user environments.
SMS 9×12-32C
The compact multiswitch comes with 9 inputs, which include one for terrestrial signal and 16 for four different satellites, each offering four polarities. It also offers user outputs in the following quantities: 8, 12, 16, 24, and 32.
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SMS 13X16
The compact multiswitch comes with 13 inputs, which include one for terrestrial signal and 16 for four different satellites, each offering four polarities. It also offers user outputs in the following quantities: 8, 12, 16, 24, and 32.
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SMS17X16
The compact multiswitch comes with 17 inputs, which include one for terrestrial signal and 16 for four different satellites, each offering four polarities. It also offers user outputs in the following quantities: 8, 12, 16, 24, and 32.
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SMA 14X14
Compact amplifier equipped with 9,13 & 17 inputs (one terrestrial and the 8,12 & 16 polarities of satellites) that allows increasing the number of users in the installation while optimizing the signal received by each of them. Amplification around 20 dB for terrestrial, and 24 dB for satellite.
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The main components of a SMATV system include:
Satellite Dish: The system begins with one or more satellite dishes, strategically positioned to receive signals from geostationary satellites. These satellites broadcast various television channels and services.
LNB (Low Noise Block): The LNB is mounted on the satellite dish and is responsible for converting the received high-frequency satellite signals into lower frequencies, which are more suitable for transmission over coaxial cables.
Coaxial Cables: Coaxial cables are used to carry the converted satellite signals from the LNB to the central distribution hub, which is typically located in an equipment room or central location within the building.
Multiswitch: The central component of the SMATV system is the multiswitch. The multiswitch takes the incoming satellite signals from the LNB and distributes them to multiple outputs. It allows different satellite channels to be distributed to different users or groups of users simultaneously.
Amplifiers: In larger installations or when there are many output points, amplifiers may be used to boost the signal strength to ensure proper signal quality throughout the distribution network.
Subscriber Outlets: These are the points where individual users can connect their televisions to the SMATV system to receive the satellite TV channels. Each subscriber outlet is connected to an output port on the multiswitch.
Working Principle: Satellite signals received by the dish are converted into lower frequencies by the LNB. The converted signals are then sent through the coaxial cables to the multiswitch. The multiswitch intelligently routes specific satellite channels or transponders to the corresponding subscriber outlets, allowing users to independently tune into different satellite TV channels without interfering with one another.
Advantages of SMATV Systems:
• Centralized distribution eliminates the need for individual satellite dishes for each user, providing a more organized and cost-effective solution.
• Scalability allows for easy expansion to accommodate more users or additional satellite services.
• Enhanced signal quality ensures consistent and high-quality TV signals to all subscriber outlets.
• Easy channel management permits operators to customize channel lineups for different user groups.
• Professional appearance with a single satellite dish and distribution equipment.
• Reduced maintenance and troubleshooting due to a centralized setup.
• Compliance with regulations and legal considerations regarding the installation of satellite dishes.
• Increased property value for commercial and residential properties.
Overall, the SMATV system offers an efficient and reliable method for distributing satellite TV signals to multiple subscribers in various settings, providing cost savings, improved signal quality, and centralized management.