Spectrum SDR (RTL-SDR)

This application is about having a bit of fun with those amazing little RTL-SDR dongles, whilst listening to AM/FM/SSB radio signals. It's nice and easy to use so why not give it a try?

• Covers the full frequency range of your RTL-SDR dongle.
• AM and FM, wide and narrow, SSB
• FFT and Waterfall displays.
• Sample rates 240000 Hz to 2160000 Hz.
• Bias tee control.
• 75 presets over 5 pages.
• Gain controls.
• Squelch.
• Flexible display options, hide things you don't need to see.
• Built-in help.

The application needs to be connected to an instance of rtl_tcp running on a remote computer, most likely over WiFi. You will need a good network connection for this to work reliably, particularly when using higher sample rates. Unless you have unusually fast WiFi it is unlikely that you will be able to reliably use the higher sample rates. The only way to completely avoid this problem is to use a wired ethernet connection. This would obviously require an external ethernet adapter to be attached to your mobile device.

We hope you enjoy using this application.