Hi Leif

If you are ready to invest a bit then look at and purchase one of these models. Then you have a first call SDR Radio and secondly by downloading the Spectrum Analyzer software on this link ?

. On this page The SDR Uno software is also to download which is the software for SDR Radio application. The are several other SDR radio software which is supporting the various SDRPlay units.

For a lower budget and get started above 50MHZ then anumber of low cost USB stick can be used and then visit the

? where there is a lot of information to study

Look also under the supported software

And for the USB dongles

Good luck

Kind regards

Kurt ?

?

Can you recommend one/a few which can do that? I have not found a SDR which could do that.
Leif