This is my measurement of the low cost filtered LNA with SAW filter for 435 MHz. It got it from AliExpress (link).
I used 20dB + 10dB (=30 dB) attenuators and calibrated my NanoVNA for 380 MHz to 510 MHz.
As you can see below the LNA performance well. Gain is aprox 23 dB (exact acoording to specification) and the bandwidth is aprox 15 MHz (a little bit more then the specification of 10 MHz BW).
