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Cellular Specialties

CSI is a leading provider of in-building wireless products including bi-directional amplifiers, in-line booster amplifiers, antennas, RF splitters, cross-band couplers and directional couplers. CSI in-building amplifier provide amplification of both uplink and downlink wireless signals in facilities located within reasonable proximity of cell sites and where wireless coverage is otherwise non-existent.

All CSI products comply with FCC rules and regulatory requirements and are designed to meet the performance criteria set forth by the major wireless service providers. Their primary competitive advantage is the focus on the functional aspects of their products. CSI Product engineers continuously improve the performance and ease of use of their products based on field application feedback from their service technicians.


800MHz (Cellular Band) In-Building Repeaters
CSI in-Building Repeaters for 800MHz Cellular (824-896MHz)
1900MHz (PCS Band) In-Building Repeaters
CSI in-Building Repeaters for 1900MHz PCS (1850-1990MHz)
800MHz/1900MHz (Dual-Band Cellular/PCS) In-Building Repeaters
CSI in-Building Repeaters for Dual-Band Cellular/PCS (824-896MHz, 1850-1990MHz)
800MHz Nextel/SMR In-Building Repeaters
CSI in-Building Repeaters for 800MHz Nextel/SMR (806-866MHz)
900MHz Nextel/SMR In-Building Repeaters
CSI in-Building Repeaters for 900MHz Nextel/SMR (896-940MHz)
Building Repeater Systems
Commercial & Residential Wireless Repeater Systems for Cellular, PCS, and Nextel/SMR