Product Overview
What it is: A hermetically sealed RF crystal filter module manufactured by Network Sciences, marked with Part No. 726061001, labeled “Network Sciences, Phoenix, Arizona”, and frequency marking 3 kHz.
What it’s used for: Designed for narrowband intermediate frequency (IF) filtering in military radios, communication receivers, and signal processing systems. The 3 kHz bandwidth is typically used for voice communication channels, offering excellent selectivity and noise rejection.
