On 06/03/2015 15:07, rickman wrote:

I didn't know about these things. Pretty amazing. A UHF/VHF tuner for
under $10 on eBay. Which one do you have?

I have 3 (because they are so cheap) they are are just generic usb TV
dongles based on the RT2832 chipset.
They are remarkably versatile devices and can pull in a lot of
interesting data. There is a thriving community online, they can tell
you far more than I can.

You do have to be prepared to get you hands dirty with some coding as
off-the-shelf sdr software for the devices are not quite there but all
the various bits are available you just need to stitch the code together
yourself.

You can even use them for radio astronomy - I have not tried this but it
could be fun.

Andy