PolyPhaser's RRF-220-NFF rail band pass filter is designed for 220
MHz wayside rail applications. The band pass filter series are specifically designed for railroad PTC (Positive Train Control) systems and engineered to reduce interference issues by blocking unwanted signals ...
The Telewave TTPD-7644 Base Station Duplexer is designed specifically for
the 763-869 MHz Public Safety frequency band. Four Bandpass / Band-Reject cavities utilize an exclusive Telewave coupling technique to provide a true bandpass response, while rejecting a specified frequency ...
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