News — Filters

Hydrogen Line (1420 MHz) Pre-filtered LNA

Posted by GPIO Labs on

Jarek presented his work at the Canada Wide Science Fair on the use of Software-Defined Radio to detect 1420 MHz radio waves from outer space.

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Notch Filter Comparisons

Posted by GPIO Labs on

KIELYDILE has written a Blog post comparing Notch Filters.

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Airband Filter

Posted by GPIO Labs on

A new Airband bandpass filter centered at 128 MHz. The filter has a bandwidth of 20 MHz.  The filter is designed to reject strong signals in the adjacent FM band.

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FM Notch or FM Band Stop Filter

Posted by GPIO Labs on

An FM notch filter is used to reject strong FM signals in receiver applications. A good FM Notch filter will reject FM signals and have low insertion loss for signals outside the band.

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