J**.
Qorvo SPF5189Z LNA Works as specified.
I bought this to use as a 1090MHz ADS-B preamp. It uses the SPF5189Z LNA and works as specified. The gain and P1dB varies significantly over frequency as shown in the plot I attached. This is good to know if you are planning to use it at a different frequency. P1dB/OIP3 is reduced at lower frequencies which could become a factor if you plan to use it in a high RF environment.This does not come with a shield or filtering even though it is stated it does in the description.P1dB (IN/OUT)50MHz -8/17.5 dBm500MHz 1.7/23 dBm1GHZ 6.5/22.8dBm2GHz 12.5/22.5 dBm
J**N
Excellent for the money
Hard to beat in terms of performance per dollar. Some of the soldering isn't the best but it hasn't affected performance vs those that I've corrected.
M**N
Noise Figure much higher then 0.6 db, gain at 2Ghz only 9 db
Noise Figure much higher then 0.6 db, gain at 2Ghz only 9 db
D**7
Good for a 50MHz preamp
Seems well-built and worked out of the box. Gain & NF spec not verified but behavior is as expected.
