Icom IASDUP1035 High-Power 4-Cavity UHF DuplexerIcom IASDUP1035 High Power 4 Cavity UHF Duplexer Robust Single Antenna Performance for Mission Critical Repeaters The Icom IASDUP1035 is a professional grade 4 cavity duplexer designed for high performance UHF repeater systems. Operating within a wide 400 512MHz frequency range, this heavy duty component allows a repeater to transmit and receive simultaneously through a single antenna. By providing high level isolation between the transmitter and

Icom IASDUP1035

High-Power 4-Cavity UHF Duplexer

Robust Single-Antenna Performance for Mission-Critical Repeaters

The Icom IASDUP1035 is a professional-grade 4-cavity duplexer designed for high-performance UHF repeater systems. Operating within a wide 400-512MHz frequency range, this heavy-duty component allows a repeater to transmit and receive simultaneously through a single antenna. By providing high-level isolation between the transmitter and receiver, it prevents signal interference and receiver desensitization, ensuring clear and reliable communication in professional RF environments.

Engineered for durability and high-power applications, the Icom IASDUP1035 supports up to 100 Watts of continuous power, making it an ideal choice for high-tier base stations and repeaters like the Icom CY series. With a minimum TX-RX separation requirement of only 3MHz, this duplexer offers excellent flexibility for frequency planning in congested UHF bands. Its 4-cavity architecture balances high isolation with lower insertion loss, maximizing the effective range of your repeater system.

Key Features & Benefits

• High Power Handling: Rated for up to 100W, allowing for high-power repeater deployments without the risk of thermal drift or component failure.
• Efficient 4-Cavity Design: Balances superior selectivity with lower insertion loss to maximize signal strength while maintaining clear separation.
• Narrow Frequency Separation: Capable of maintaining high performance with a minimum TX-RX spacing of just 3MHz.
• Broad UHF Coverage: Operates across the full 400-512MHz band, covering business, industrial, and public safety UHF frequencies.
• Single Antenna Efficiency: Eliminates the need for dual antennas, reducing tower space requirements and lowering overall installation costs.
• Professional Grade Build: Manufactured with high-quality materials to ensure 24/7 reliability in demanding base station environments.

Specifications

• Brand: Icom
• Model Number: IASDUP1035
• Frequency Range: 400-512MHz
• Power Rating: 100 Watts
• Cavities: 4-Cavity Configuration
• Minimum Separation: 3MHz (TX-RX)
• Mounting: Base/Repeater Integrated

Compatibility

Frequently Asked Questions

• Does this duplexer come pre-tuned? No. Duplexers must be precisely tuned to your specific assigned TX and RX frequencies. It is recommended that a qualified RF technician perform the tuning using a calibrated network analyzer.
• What is the difference between a 4-cavity and a 6-cavity duplexer? A 4-cavity duplexer typically offers lower insertion loss (less signal degradation), while a 6-cavity model provides higher isolation. The IASDUP1035 is optimized for 100W power levels where efficiency is key.
• Can this be used for GMRS frequencies? Yes, as long as the duplexer is professionally tuned to the specific GMRS frequency pairs, it is compatible with the 400-512MHz range.

Warranty

1-year manufacturer's warranty.