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421/422 Series, Tower Top Amplifiers (11)

A Tower-Top Amplifier (TTA) is an important system component in systems above 700 MHz. As the frequency rises, so does the loss of the coaxial cable feedline which connects the receive antenna to the system. A TTA places a high-performance Low-Noise Amplifier (LNA) as close to the receive antenna as practically possible to minimize feedline loss before amplification.


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429 Series, Tower Top Systems (2)

The new compact high performance Tower-Top Amplifier (TTA) Systems consist of two components: the Tower-Top Amplifier mounted close to the antenna and the Receiver Multicoupler base unit.These systems are designed to increase the performance of a Base Transceiver Station (BTS) while ensuring reliable communications for mission critical communications.

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Compact Receiver Multicouplers (4)

TX RX’s new generation of broadband receiver multicouplers provide unequalled performance in a 1-rack unit (1 3/4 inch) space-saving package. The high performance LNA's typically exhibit a noise figure of only 1 dB while providing a (100% measured) 3rd order output intercept point in excess of 40 dBm. The multicouplers are designed with a minimum excess gain of 10 dB which gives maximum sensitivity in rural applications. All the units are designed for ease of expansion, with no change in system gain in most cases. Combline preselectors are available for all common applications in the 700/800/900 MHz bands.

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Expansion Kits (20)

All TX RX Receiver Multicouplers are easily expandable by either adding additional power dividers to the existing chassis or by addition of a 1-rack unit deck. The 16- channel BNC models have 2 terminated BNC connectors for non-invasive expansion of up to 16 additional outputs in 8-output blocks, with no change in performance or specifications. All necessary cables with attached connectors are included in each kit.

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Second Stage Preamplifier (3)

TX RX Systems Inc. continues to support its first generation of Receiver Multicoupler products with system expansion kits. These models employ single and dual stage preamplifiers with two and four channel power dividers in pyramid interconnection systems allowing us to support expansion from four to sixty-four channel capacity in four-channel increments. 

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