SDR input circuit protection

To protect the SDR dongles and also the RSP1 clone, doing some research on the web, I created this small "Protection Circuit" to adapt to my RTLSDR and the RSP1 clone with Msi2500 chip (see here). The inductance of the inductor at the input is 470 μH (maybe a little less, maybe a little more). Any antiparallel, pulsed, high-frequency diode, for example 1N4148. 😀

 

 

 

No signal loss 😆