NEW: THE DECODE TAB SWLtools no longer just records and displays signals — it reads them. • Morse (CW). The app locks onto the tone by itself and measures the sending speed from the signal, so it follows hand-sent Morse as well as machine-sent. Each transmission starts on a new line when the operator hands over, and a side panel collects the callsigns heard, leaving out the ones that were only a misread of another. • RTTY, in both ITA2 and SITOR-B. • Weather fax (WEFAX). The chart builds up line by line as it arrives and can be saved straight to the photo library. • ACARS aircraft messages, with the ones carrying a position shown on a map. Decoded text can be saved, reopened later and shared. AUDIO CHAIN • I/Q sample-delay correction. USB audio adapters do not sample their two channels at the same instant, and that small gap puts a mirror image of every signal on the wrong side of the spectrum, growing worse away from centre. The delay can now be corrected, and the mirror drops out of sight. • The app tells you what your adapter can and cannot do — full I/Q spectrum, speaker monitoring — instead of letting you find out by trial. • A new audio diagnostics panel shows what iOS is actually doing with the signal: route, format, buffers, and whether the monitor has quietly taken the dongle away. • If microphone access is denied, the app now says so and explains why nothing can be received: iOS routes USB audio adapters through that same permission. • The screen no longer goes dark while a decoder is running. ELSEWHERE • All times, on screen and in saved files, are now UTC — the way radio logs are kept. • Recordings can be turned into a video to share. • Corrected instructions: listening through the phone while recording needs a two-channel interface, which the old text did not say.

Fixed several issues that recently arose due to conflicts between various settings in the audio section. Refactored the entire codebase to ensure greater app stability.

Stereo and mono inputs on the ADC converter are now handled differently. Improved control over signal levels and AGC. The tuned station is now centered in the spectrum and waterfall displays, making precise tuning easier. Added a zoom function to the spectrum and waterfall displays. Added a cursor to measure bandwidth, RTTY shift, etc. on the waterfall display. Bug fixes and stability improvements.

Now you can export the audio file as a video (.mov). In the video you can a couple of lines of text to describe the audio recording. It will be easier to share your recordings on social media. Fixed minor bugs.