A few ideas for what to do with a USB RTL-SDR receiver..
Test 1: Listen to your local radio stations using CubicSDR. I could not get SDRSharp to work with my NOOELEC USB RTL-SDR.
Test 2: Listen at 1090Mhz for aeroplane ADS-B transmissions.
https://en.wikipedia.org/wiki/Automatic_dependent_surveillance_%E2%80%93_broadcast
To decode the transmissions at 1090Mhz I used the Windows application from https://rtl1090.com/
https://www.jetvision.de/manuals/rtl1090imu.zip
RTL1090 is configured by default to use port 31011
Download Virtual Radar from http://www.virtualradarserver.co.uk/download.aspx
Then using Virtual Radar configure your receiver (Options --- Receiver) to use port 31011 to receive the feed from RTL1090
Test 3: Watch DVB-T
The drivers for DVB-T and SDR use are different according to the rtl-sdr website.
https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/
I download the drives that are recommended by the rtl-sdr guide. The link is to an application that includes Blaze media application
which requires a license. But there is also the drivers in the same zip file. So just install the drives from the driver
folder! This installed an "RTL2832UUSB" driver fr DVB-T.
Then using VLC add your local DVB-T frequency and bandwidth. To change channel just use the fast forward button in VLC.
Saorview frequencies
http://www.rtenl.ie/wp-content/uploads/2012/11/SAORVIEW-Frequencies-Rev-2.5.pdf
Test 4: Transmit and receive RTTY messages using an NTX2B transmitter in the unlicensed 434Mhz band.
You need to replace the driver for DVB-T with one suitable for CubicSDR. Rerun the Zadig application.
