Microwave Customized 471-481MHz Cavity Filter by Keenlion
Cavity Filteroffers narrow 10mhz frequency bandwidth for precise filtering.471-481MHz Cavity Filter cuts off above a certain frequency.Keenlion’s 471-481MHz Cavity Filter is a precision-engineered passive unit built for clean UHF transmit-receive chains. Machined in our 20-year factory, every 471-481MHz Cavity Filter is silver-plated, hand-tuned and verified on Keysight PNA-X to deliver Insertion Loss ≤1.0 dB while providing Rejection ≥40 dB @ 276 MHz and Rejection ≥40 dB @ 676 MHz—critical for adjacent-band interference control.
Main Indicators
| Product Name | |
| Center Frequency | 476MHz |
| Pass Band |
471-481MHz |
| Bandwidth | 10MHz |
| Insertion Loss | ≤1.0dB |
| Return Loss | ≥18dB |
| Rejection | ≥40dB@276MHz
≥40dB@676MHz |
| Port Connector | SMA -Female |
| Power | 20W |
| Impedance | 50Ω |
| Dimension Tolerance | ±0.5mm |
476MHz
Outline Drawing
Electrical Performance
Center frequency: 476 MHz
Bandwidth: 10 MHz
Insertion Loss ≤1.0 dB
Rejection ≥40 dB @ 276 MHz & Rejection ≥40 dB @ 676 MHz
Return Loss ≥18dB through passband
Power:20w
Factory Advantages
20-year UHF filter experience
In-house CNC turning—20-day lead time
Insertion Loss ≤1.0 dB & Rejection ≥40 dB guaranteed on every 471-481MHz Cavity Filter
Free samples shipped in 24 h
Custom mounting, connectors and paint available at no MOQ
Competitive factory price with lifetime tech support
Applications
Install the 471-481MHz Cavity Filter between radio and antenna in PMR, LoRa, SCADA and lightweight repeaters. Field tests show co-site rejection improved by 45 dB after inserting the 471-481MHz Cavity Filter, eliminating desensitization from nearby VHF and 700 MHz services.
