Compact PCB filter module designed for DIY Kits Air Band / Airband Radio Receiver projects. Improves reception quality by reducing out‑of‑band noise and interference, making aviationband listening clearer and more reliable. Key benefits Cleaner reception: reduces unwanted signals and spurious noise so voice transmissions on the aviation air band come through with better clarity. Easy integration for hobbyists: made to work with DIY radio receiver builds and kit projects so you can upgrade frontend selectivity without redesigning your receiver. Better overall performance: improves selectivity and signaltonoise for handheld scanners, homebuilt receivers, or SDR front ends monitoring aviation frequencies. Main features and attributes Functionality: RF bandpass filter board module optimized for airband/aviation band receiver use; intended to be placed between antenna and receiver front end to limit outofband signals. Compatibility: designed for DIY airband radio receiver kits, hobby scanners, SDR dongles and other small aviation monitoring projects. Works with common receiver architectures used in hobbyist builds. Construction: compact printed circuit board (PCB) filter module with RF components installed; lightweight and suitable for bench projects and portable builds. Performance: reduces interference and improves selectivity in the aviation band, helping receivers lock on to desired transmissions with less desense from strong nearby signals. Connectivity and mounting: provides solderable pads/terminals for straightforward wiring into existing kit assemblies or prototypes; fits easily into enclosures used for DIY receivers. Typical applications Upgrade a DIY airband receiver kit to improve audio clarity and reduce nearby AM/FM interference. Add a frontend filter to an SDR or scanner setup used for monitoring airport and aircraft communications. Integrate into a hobby workbench receiver or portable monitoring rig to achieve better selectivity in crowded RF environments. Practical notes for users Intended for hobbyist installation: basic soldering and RF wiring skills are helpful when installing the board into a kit or project. Placement matters: install the filter close to the receiver front end (or between antenna and preamp) for suppression of unwanted signals. Complementary components: for performance, use with a properly matched antenna and follow standard receiver impedance practices. What you get A compact airband filter PCB module tailored for aviationband radio receiver DIY projects, ready to be integrated into compatible kits and hobby circuits. This module is a focused, practical upgrade for anyone building or improving an airband receiver and seeking clearer, more reliable aviationband reception without major redesign.