News
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.
Spectrum Scanning Projects
Posted by GPIO Labs on
Jon has some spectrum scanning projects in which he uses our LNA and FM notch filters. It's interesting how he puts them into die-cast boxes. This is something we get asked about all the time. You can read about the projects here and here. Jon's wireless projects are definitely worth reading about.
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.
FM reception using the 40 dB LNA and HackRF
Posted by GPIO Labs on
David Goldstein sent in a few pictures that show FM reception without and with the 40 dB LNA. A significant gain in performance with the LNA. Thanks David!
Considerations when using high-gain LNAs
Posted by GPIO Labs on
Some of our LNAs provide in excess of 40 dB of gain and operate over a wide frequency range. The primary application of these products is to amplify weak signals by increasing the signal-to-noise ratio at the receiver.