YAT-3A+ is a high-performance Dual-Output Ku-Band Low-Noise Block Downconverter

1. Overview

2. Key Functions

2.1 Ku-Band Signal Reception & Ultra-Low-Noise Amplification

• Target Frequency Range: Optimized for the global standard 10.7GHz–12.75GHz Ku-band, the primary spectrum for satellite television (TV), digital video broadcasting (DVB), and small-to-medium satellite data transmission.
• Efficient Signal Capture: Features a universal feedhorn interface compatible with most Ku-band satellite dishes (typically 45cm–2.4m in diameter), effectively collecting weak signals that have endured long-distance propagation and atmospheric attenuation.
• Low-Noise Amplification (LNA): Equipped with a premium-grade LNA module boasting an ultra-low noise figure (NF) of 0.2dB–0.3dB. This ensures weak input signals are amplified significantly while introducing negligible background noise—critical for preserving signal integrity and enabling reliable decoding by downstream devices.

2.2 Precise Frequency Downconversion

• Downconversion Necessity: High-frequency Ku-band signals experience severe attenuation over coaxial cables, making direct long-distance transmission impractical. The YAT-3A+ resolves this by downconverting received signals to a manageable 950MHz–2150MHz intermediate frequency (IF) range.
• Stable Local Oscillator (LO): Incorporates a high-stability LO (with frequency stability of ±1ppm or better) to mix with Ku-band input signals. This eliminates frequency drift and signal distortion during downconversion, ensuring consistent, synchronized signal quality across all three output ports.

2.3 Triple Independent IF Signal Outputs

• Triple F-Type Interfaces: Equipped with three standard F-type coaxial output ports, each delivering an identical, amplified IF signal. All outputs operate independently—signal loss, interference, or device disconnection on one port does not affect the performance of the other two. This enables simultaneous connection to three separate satellite receivers, set-top boxes, DVRs, or data modems.
• Low Insertion Loss: Each output is optimized for minimal insertion loss (<1dB), ensuring signals retain sufficient strength even when transmitted over 10–25 meters of coaxial cable (common in residential, office, or small commercial installations).

2.4 Robust Performance & Anti-Interference Capabilities

• High Total Gain: Provides a total signal gain of 55dB–65dB, compensating for cable transmission losses and ensuring downstream devices (e.g., receivers) can reliably detect and decode signals—even in areas with marginal satellite coverage (e.g., suburban or semi-rural locations).
• Advanced Filtering: Built-in high-selectivity band-pass filters suppress out-of-band noise (e.g., terrestrial microwave interference, adjacent satellite signals) and harmonic distortions, significantly improving the signal-to-noise ratio (SNR) and reducing reception issues like pixelation, audio dropouts, or signal loss.
• Overload Protection: Integrates input overload protection circuitry to shield the LNA and internal components from sudden signal surges (e.g., from nearby radar systems or strong terrestrial transmitters), enhancing long-term reliability.

2.5 Environmental Durability

• Weather-Resistant Housing: Encased in corrosion-resistant die-cast aluminum with an IP65 or higher protection rating, the YAT-3A+ withstands extreme weather conditions—including heavy rain, dust, humidity, and temperature fluctuations (operating range: -40°C to +60°C). This design ensures stable performance in outdoor environments where satellite dishes are typically mounted (e.g., rooftops, balconies).

2.6 DiSEqC Compatibility (Optional for Advanced Variants)

• Many YAT-3A+ models support DiSEqC 1.0/1.1 protocols (Digital Satellite Equipment Control), enabling integration with multi-satellite systems. This allows users to switch between signals from two different Ku-band satellites using a single LNB and a motorized dish, expanding content access without additional hardware.

3. Typical Applications

3.1 Residential Multi-Room Satellite TV

• Primary Use Case: Ideal for large households or multi-bedroom residences requiring independent satellite TV access across three spaces. For example, connect one output to a living room set-top box, a second to a bedroom receiver, and a third to a home theater system—all can stream different Ku-band channels (free-to-air or subscription-based) simultaneously without signal conflict. It supports content from satellites like Astra, Eutelsat, Intelsat, or regional providers.

3.2 Small Commercial Multi-Display Setups

• Suitable for small businesses, retail stores, waiting lounges, or offices with multiple displays. For instance:
  • A convenience store can use one output for a customer-facing news channel, a second for a promotional video feed, and a third for a back-office business data stream (e.g., real-time inventory updates via satellite).
  • A doctor’s waiting room can provide three distinct content options (e.g., kids’ shows, news, and health programming) across separate TVs, all powered by a single satellite dish and YAT-3A+.

3.3 Simultaneous Viewing, Recording, & Streaming

• Enables advanced media workflows by supporting three concurrent operations. For example:
  • Connect one output to a set-top box for live TV viewing.
  • Link a second to a DVR (Digital Video Recorder) for program recording.
  • Attach a third to a streaming device (e.g., a PC with satellite decoding software) to stream content to other devices on the local network.
    This eliminates the need for multiple LNBs or dishes, simplifying setup and reducing costs.

3.4 Replacement for Legacy Triple-Output LNBs

• Serves as a direct upgrade or replacement for aging triple-output Ku-band LNBs in existing systems. It is fully compatible with standard Ku-band dishes and DVB-S/DVB-S2/DVB-S2X compliant receivers, making it a cost-effective solution to restore or enhance signal quality for multi-device setups.

3.5 Basic Multi-Satellite Content Access (DiSEqC-Enabled Models)

• For users seeking content from two satellites (e.g., mixing regional and international channels), DiSEqC-supported YAT-3A+ models work with motorized dishes to switch between two Ku-band satellite signals. This is common in regions where desired programming is distributed across multiple satellites, eliminating the need for a multi-LNB "monoblock" setup.

4. Core Advantages

• Triple Independent Feeds: Eliminates the need for 2–3 separate LNBs or dishes to support three devices, reducing installation complexity, hardware costs, and dish mounting space requirements.
• Superior Signal Integrity: Ultra-low noise figure and high gain ensure stable, clear reception—even for weak signals—minimizing common issues like pixelation, signal dropout, or distorted audio/video.
• Broad Compatibility: Works seamlessly with all standard Ku-band dishes and mainstream satellite receivers/set-top boxes, requiring no specialized tools for installation (mounts directly on the dish’s feed arm and connects via standard coaxial cable).
• Industrial-Grade Durability: Weatherproof housing and rugged components guarantee long-term operation in harsh outdoor conditions, reducing maintenance and replacement frequency.
• Scalability (DiSEqC Models): Supports multi-satellite access for users needing expanded content options, without investing in a full multi-LNB system.

Ku-Band LNB downconverter

Dual-Output low-noise block

Mini Circuits LNB with warranty

YAT-3A+ is a high-performance Dual-Output Ku-Band Low-Noise Block Downconverter Images