Well Neville a few specs from the RSP Duo receiver I have which is literally about the size of a Swan Vestas matchox.
You plug it in to a USB port and an aerial. (It gets it's power from the USB.)
Now the shocking bit …
Frequency coverage: 1 kHz to 2 GHz (no gaps.)
All the control of course comes from software on a PC, which is pretty much free (there are many SDR software packages out there.)
Now I accept people (and I'm sort of one of them in a way) prefer some proper knobs and dials to mooch about on the airwaves, but when I bought the FLEX the seller also included a DJ Midi controller which you can plug into the computer and map the SDR controls to various knobs and dials so you can actually turn and switch things rather than mouse click. You know, just like on an Atalanta ..
I haven't got round to fiddling with that yet, as I've got about six gazillion more controls to figure out what they do.
If you look at the link I posted above you get a flavour of what SDR is about. (I can sadly report I was using that link on my phone to listen to some morse a few weeks ago in the pub !!!
) I got some funny looks.
Have I finally gone Portis in the Head.
