Product Overview
What it is: A hermetically sealed RF crystal filter module manufactured by Network Sciences, marked with Part No. 726-062-004, labeled “Network Sciences, Phoenix, Arizona”, and frequency marking 80 kHz.
What it’s used for: Designed for intermediate frequency (IF) filtering in military radios, communication receivers, and RF signal processing systems. The 80 kHz bandwidth is typically used for wider signal filtering applications such as IF stages in communication equipment and test systems.