RTL_SDR V3 with supplied whip antenna just receiving FM broadcast
Posted: Wed Apr 21, 2021 2:28 pm
I am trying rtl-sdr V3 using Sdrsharp or eirher HDSR SW in Win10 environment using supplied whip antenna but the only broadcasts I can receive (very well) are the local FM station and rarely (less well) some communication in 144Mhz and 433Mhz band. No air band at all nor any HF broadcast whatsoever: just noise. I configured "direct sampling Q branch" to receive HF bands but that didn't help. I suspect the dongle is saturated by the FM stations in my area since I receive images of FM broadcasts in 25Mhz band so I wonder now if a notch FM filter (such as Flamingo) would actually solve the issue but I'd like to have a confirmation on this by anyone who came across this experience before investing additional 25$ to the initial 28$ dongle cost.