Tower Top Amplifier (TTA)
A TTA places a low-noise preselector and low-noise amplifier (LNA) at the tower top, close to the receive antenna. This location minimizes feeder loss and reduces the overall receive noise figure—delivering stronger uplink “talk-back,” wider coverage, and more reliable site access in LMR/PMR systems. High-quality filtering and strong linearity help prevent overload and intermodulation.
Sinclair advantage: Sinclair TTA systems are delivered as a matched package with the TTA and receiver multicoupler/controller together. This integrated approach optimizes end-to-end performance, simplifies integration, and ensures a balanced site design.
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Sinclair advantage: Sinclair TTA systems are delivered as a matched package with the TTA and receiver multicoupler/controller together. This integrated approach optimizes end-to-end performance, simplifies integration, and ensures a balanced site design.
DAS Components
Sinclair’s Distributed Antenna System (DAS) components possess durable design features and industry-leading electrical performances such as low PIM characteristics, making them ideal for public safety applications. Key features include:
• Rugged and IP65 construction for public safety DAS application
• Wide band that covers all public safety bands (VHF, UHF, and 700/800/900 MHz)
• Outstanding electrical performance for optimal reception and clear voice
• Industry leading ≤ -153 dBc PIM rating across all LMR bands
• RoHS and low insertion loss
• High directivity/Isolation
• Red color finish identifies components for critical communications
• Rugged and IP65 construction for public safety DAS application
• Wide band that covers all public safety bands (VHF, UHF, and 700/800/900 MHz)
• Outstanding electrical performance for optimal reception and clear voice
• Industry leading ≤ -153 dBc PIM rating across all LMR bands
• RoHS and low insertion loss
• High directivity/Isolation
• Red color finish identifies components for critical communications
