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.
Hybrid Couplers
Hybrid Couplers are used in RF combining, sampling and power splitting applications. A hybrid coupler is one way of combining two or more closely spaced channels together. The use of unbalanced hybrid couplers allows you to balance the insertion loss for each repeater channel, providing a more efficient system. They are also commonly used in a DAS system to properly balance each leg of the distribution system within a couple of dB. They can also be configured to sample output power levels and used as a signal sampler.
