QuestaSDR - powerful and flexible cross-platform Software Defined Radio Application (SDR). Built-in scheduler architecture provides integrate plugins plugins kits and multi - UI. Typical applications are DXing Ham Radio Radio Astronomy and Spectrum analysis.

Support Hardware:
- RTLSDR Dongle
- HPSDR General
- HiQSDR General

Main features:
- Dark Universal Material application style
- Available up to 10 MHz bandwidth
- Wide band and IF spectrum view
- Many spectrum settings (FFT size waterfall FPS and color theme)
- AM/SSB/NFM/WFM demodulator
- RDS decoder
- Record AF file
- Frequency bookmarks
- Supported IF-adapter upconverter downconverter hardware
- Rig samplerate frequency level and iq disbalance calibrate
- WEB remote
- LAN remote
- Noise Treshold squelch
- Frequency Scanner
- RSSI Logger

To start using QuestaSDR you will need:
- RTL-SDR dongle
- USB OTG Cable - used to connect a RTLSDR to your Android device.

Connect the USB dongle to the USB-OTG then insert the free end of the cable into the USB port of your Android device and launch the QuestaSDR! Now you can listen to live frequency range shortwave VHF UHF.

Or use SDR server.

Feedback and bug reports are always welcome.

Please note that I am not responsible for any legal issues caused by the use of this application. Be responsible and familiarize yourself with local laws before using.