Icom UHF Internal Duplexers 10MHz SeparationIcom UHF Internal Duplexers 10MHz Separation IASDUP1040 IASDUP1041 IASDUP1042 IASDUP1043 50W Internal UHF Duplexers High Isolation Single Antenna Solutions for UHF Repeaters The Icom IASDUP1040 41 42 43 series consists of professional grade 6 cavity internal duplexers designed for high performance UHF repeater systems requiring wider frequency spacing. These specialized RF components allow a repeater to transmit and receive simultaneously through a

Icom UHF Internal Duplexers 10MHz Separation

IASDUP1040 / IASDUP1041 / IASDUP1042 / IASDUP1043

50W Internal UHF Duplexers

High-Isolation Single-Antenna Solutions for UHF Repeaters

The Icom IASDUP1040/41/42/43 series consists of professional-grade 6-cavity internal duplexers designed for high-performance UHF repeater systems requiring wider frequency spacing. These specialized RF components allow a repeater to transmit and receive simultaneously through a single antenna port, eliminating the need for dual antennas or bulky external hardware. Specifically engineered for a factory-style fit within the chassis of the FR6000 and CY6300 series, these duplexers provide a clean, integrated solution for space-constrained rack environments and mobile command centers.

With a power rating of 50 Watts and a 6-cavity design, these units provide excellent isolation between the transmit and receive paths, preventing receiver desensitization and ensuring clear audio. Each variant is optimized for a specific portion of the UHF band, providing reliable coverage across commercial, industrial, and public safety frequencies. With a standard 10MHz TX-RX separation (supporting a range of 8-10MHz), these duplexers offer a versatile and efficient migration path for single-site or networked repeater systems.

Key Features & Benefits

• Internal Chassis Integration: Designed for a seamless fit inside the repeater, protecting the RF signal path and saving valuable 19-inch rack space.
• Single Antenna Efficiency: Enables full-duplex operation on one antenna, significantly reducing tower equipment costs and installation complexity.
• High-Isolation 6-Cavity Design: Provides superior rejection of transmitter noise to maintain maximum receiver sensitivity.
• Vibration-Resistant Build: Rugged construction ensures stable frequency performance in both fixed station and transportable deployments.
• Broad UHF Coverage: Four variants available to cover the full UHF spectrum from 400MHz up to 512MHz.
• Low Insertion Loss: Engineered to maintain maximum signal strength for both incoming and outgoing transmissions.

Specifications

• Brand: Icom
• Configuration: 6-Cavity
• Connector Type: N-Connector
• Application: Internal Repeater Mounting
• Compatible Chassis: FR6000, CY6300

Variant Compatibility Guide

Frequently Asked Questions

• Are these duplexers pre-tuned? No. Duplexers must be tuned to your specific FCC-assigned TX and RX frequencies. It is recommended that a qualified technician perform the tuning using a calibrated network analyzer before installation.
• What is the difference between these and the 1036 series? This series is designed for systems requiring a wider 10MHz separation (8-10MHz range), whereas the 1036 series is optimized for 5MHz separation.
• What is the benefit of an internal duplexer? It creates a highly portable, "one-box" repeater solution that is easier to deploy in the field and requires less rack space.

Warranty

1-year manufacturer's warranty.