Tower Top Amplifier System Compact AutoQuad

SKU: 428-83H-01 Category:


Standard Features:

Tower amplifier in compact weatherproof stainless steel enclosure (NEMA 4x).

Integrated high performance filter/LNA covers 792-824 MHz for full Public Safety coverage.

Redundant Quadrature LNA’s and automatic solid-state backup switching for the highest reliability.

Test Port allows gain, sensitivity and desensitization measurements from ground level.

Solid-state RF switches are used throughout the TTA for higher reliability.

PolyPhaser impulse suppressors on all tower box I/O ports.

Special PolyPhaser surge arrestor supporting AISG subcarrier data transmission provided for installation at the transmission line entry bulkhead.

One rack-unit microprocessor-controlled control unit (CMU) or multicoupler (MCU.)

Integrated programmable attenuators for setting reserve gain and receiver cable loss compensation.

Multifunction LCD readout and multicolored, panel-mounted LEDs for status reporting.

Form C contacts for fault reporting through a supervisory system are available through a connector on the rear of the control-panel.

Ethernet connector on front panel for programming, fast ATP mode switching and alarm details.

Wide input range AC power standard


TxRx, Combilent

TX RX Systems, Inc. was founded in 1976 and is located in Angola, NY, a suburb of Buffalo. The company quickly became the industry leader in providing RF Conditioning products in the Land Mobile Radio market, aided by breakthrough inventions in T-Pass® Transmit Combiner, Auto-Backup® Tower Top Amplifier, base station antennas,  etc.  Over the years, TX RX’s RF Infrastructure Products have played a critical part in improving and optimizing numerous mission critical radio networks for both Public Safety and general two-way radio users. TX RX Systems was acquired by Bird Technologies Group in 1995 and became the “go-to supplier” for LMR applications in VHF, UHF, and 700/800 MHz frequency bands. In 2018, Indutrade, a European conglomerate based in Sweden, acquired TX RX from Bird.  TX RX joined Combilent, a Denmark company also owned by Indutrade, to form the Combilent Group.    The new TX RX will continue the tradition of offering best-in-class solutions for our customers, while leveraging the combined strength and resources of both companies in R&D, operations, and sales support. For all  product information from TXRX please visit their website