Comparing Two LNA's for HRIT/LRIT (GOES) Reception
LNA 0.05-4GHz RF Amplifier SPF5189 Signal Ultra Low Noise High Linearity NF0.6dB | eBay
LoRa Helium SPF5189 amplifier Day 5 - YouTube
Pieter Noordhuis on Twitter: "The new configuration has the SPF5189 behind the @nooelec SAWbird instead of in front. The +14dB was apparently enough to sometimes overload the SAWbird and impact signal quality.