Kathrein 78211056 Smart Bias Tee (469870A.105)
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Kathrein 78211056 Smart Bias Tee (469870A.105)

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78211056
Description

The Kathrein 78211056, also designated as 469870A.105, is a carrier-grade Smart Bias Tee engineered for modern wireless communication infrastructures. This passive RF component is designed to inject or extract DC power and AISG (Antenna Interface Standards Group) control signals into or from a coaxial feeder line. It enables the remote powering and management of mast-head equipment, such as Tower Mounted Amplifiers (TMA) and Remote Electrical Tilt (RET) units, by utilizing the existing RF cable for signal and power transport. The module operates across a wide frequency range, typically supporting major cellular bands from 694 MHz to 2700 MHz, ensuring compatibility with 4G LTE and mid-band telecommunications standards.The hardware features an integrated AISG 2.0 modem for transparent data communication and supports a wide DC input range from +8V to +30V. It is optimized for superior passive intermodulation (PIM) performance and exceptionally low insertion loss, maintaining high signal integrity for the primary RF traffic. Built for harsh outdoor environments, the 78211056 is housed in a rugged, weather-resistant enclosure that provides protection against moisture ingress and extreme temperature fluctuations. The unit incorporates advanced lightning protection on both the RF and DC/AISG ports to safeguard sensitive active equipment from electrical surges. It is typically equipped with high-quality 7/16 DIN or 4.3-10 connectors, providing a secure and low-reflection interface for mission-critical mobile network sites.

Features
Equipment Type:
RF Module
Equipment Type:
Brand:
KATHREIN
Original product:
Delivery period:
Price not specified