SWLtools 4+

SWTtools is for the SWL who needs to record an audio recording from the receiver to archive the dxes. If an IQ output is available you can display spectrum and waterfall.

SWLtools: The Companion for Shortwave Listening Enthusiasts!

SWLtools is an app designed specifically for Shortwave Listeners (SWL) who want to enhance their listening experience. Whether you're a hobbyist or a dedicated listener, SWLtools offers features that help you in your activity.

Key Features:
Record and Store Audio: Easily record and store audio files directly from your receiver. Capture the sounds of the world right from your device and play them back whenever you want.

Spectrum and Spectrogram Display: If your receiver is equipped with an IQ output, SWLtools allows you to visually display the spectrum and spectrogram (waterfall). Experience real-time signal visualization and gain deeper insights into the frequencies you are exploring.

Optimized for the Belka Receiver
SWLtools was designed to work seamlessly with the Belka receiver.
SWLtools is perfect when you are outdoor and you want to record your dx or explore the frequencies with the spectrum view.
The app has been optimised to save power when you display the spectrum and the spectrogram (waterfall).

Requirements
To use SWLtools, you'll need a cheap two-way digital-to-analog and analog-to-digital converter connected to the USB port of your iOS device. These affordable dongles feature a microphone input and headphone output, enabling pass-through of the audio signal for recording or IQ signal for spectrum display.

Not Just for SWL!
While SWLtools is perfect for shortwave listening, it’s also versatile enough for any scenario where you need to record an audio signal coming out from a line.

Note: Please ensure your receiver is compatible with the app functions and that you have the necessary accessories for optimal performance.