LNB satellitare Quattro Selfsat H21D di Selfsat — bianco

Selfsat H21D is a Quattro satellite LNB in a white finish designed to receive satellite signals and deliver stable, band-separated outputs for centralized distribution systems. As a Quattro type LNB, it separates the four signal paths — vertical low, vertical high, horizontal low and horizontal high — into dedicated outputs intended for connection to a multiswitch or distribution amplifier. The unit is intended for fixed outdoor installation on a satellite dish to provide reliable input for multi-dwelling or multi-receiver setups.

Advantages

The Selfsat H21D Quattro LNB offers separated outputs for each polarization and band, reducing cross-talk and simplifying multiswitch installations. Its white housing provides a discrete appearance on light-coloured dishes and mounting locations, while the Quattro configuration ensures compatibility with standard multiswitch-based distribution architectures. The device is designed for outdoor use and for continuous signal delivery to downstream equipment.

Suitable for

• Centralized satellite installations feeding multiswitches in apartment buildings or commercial premises
• Large homes or estates requiring multiple receivers connected through a distribution system
• Professional installers configuring band-separated inputs for signal processing and amplification

Key specifications

• Type: Quattro LNB with four separate outputs (vertical low, vertical high, horizontal low, horizontal high)
• Housing colour: white
• Use: outdoor satellite reception for multiswitch/distribution systems
• Output configuration: four fixed outputs for connection to multiswitch or amplifier
• Designed for compatibility with Ku-band satellite signals and standard dish assemblies

How to use

Mount the Selfsat H21D LNB at the LNB holder arm of a properly aligned satellite dish, ensuring the feedhorn faces the dish focal point. Connect each of the four outputs to the corresponding inputs on a compatible multiswitch or distribution amplifier using suitable coaxial cables and F-type connectors. Verify dish alignment and signal levels at the multiswitch outputs with appropriate measurement equipment, and secure all outdoor connections with weatherproofing materials to prevent moisture ingress.

Recommendations

Use the Selfsat H21D with a multiswitch designed for Quattro LNBs and ensure cable runs use quality, weather-rated coax to maintain signal integrity. Regularly inspect outdoor seals and mounting hardware for corrosion or loosening, and perform alignment checks after severe weather to preserve optimal reception.