About This Part
The Kathrein Part Number 78210621 is a high-performance Dual Band Combiner (DBC) engineered for critical applications within modern mobile communication infrastructure. As a passive RF component, this unit is designed to efficiently combine or separate radio frequency signals operating across two distinct frequency bands: 1800 MHz (commonly used for GSM, DCS, and LTE deployments) and UMTS (Universal Mobile Telecommunications System, typically around 2100 MHz). Its primary function is to enable the sharing of a single antenna system by multiple transceivers or technologies, thereby optimizing tower space, reducing antenna count, and simplifying cabling. Key technical specifications include low insertion loss, which is crucial for maintaining signal integrity and minimizing power wastage, and high isolation between the combined bands to prevent interference. The robust design ensures reliable operation in demanding outdoor base station environments, typically featuring weather-resistant housing and standard RF connectors such as N-type or 7/16 DIN for seamless integration into existing network architectures. This Kathrein combiner is a fundamental building block for efficient spectrum utilization. The Kathrein 78210621 finds extensive application in base station sites, cellular towers, and distributed antenna systems (DAS) where space and infrastructure efficiency are paramount. Mobile network operators (MNOs) and telecom infrastructure providers deploy this DBC to support multi-technology networks, allowing the co-existence of 2G (GSM 1800), 3G (UMTS), and 4G (LTE 1800/2100) services on a unified antenna system. This component solves critical deployment challenges by reducing the physical footprint of RF equipment, minimizing structural load on towers, and streamlining the often-complex cabling required for multiple single-band antennas. It facilitates network modernization and upgrades, enabling operators to introduce new services or expand capacity without extensive overhauls of their physical antenna infrastructure. By consolidating RF paths, the Part Number 78210621 effectively replaces the need for separate antennas and feeder lines for each band, offering a cost-effective and performance-enhancing solution for network expansion and optimization. Revo Distribution Limited specializes in providing B2B clients with high-quality used and refurbished telecom and data centre equipment, including essential components like the Kathrein 78210621 Dual Band Combiner. For telecom operators and infrastructure providers seeking cost-effective infrastructure solutions, Revo offers a reliable source for these critical parts, ensuring network continuity and facilitating strategic upgrades without the capital expenditure associated with new equipment. Our extensive inventory enables clients to expand or upgrade their networks efficiently, leveraging proven technology at a fraction of the cost. By supplying refurbished units, Revo actively contributes to the circular economy, extending the operational lifecycle of existing infrastructure and promoting sustainable practices within the telecommunications industry. Our commitment to quality and rigorous testing ensures that every piece of equipment, including this versatile combiner, meets stringent performance standards, providing dependable service for years to come.
