SWLtools vs Morse Dot Messenger

SWLtools: The Companion for Shortwave Listening Enthusiasts SWLtools is an app designed specifically for Shortwave Listening (SWL) enthusiasts who want to enhance their listening experience. It records what you hear, shows you the band, and reads the digital modes that carry text on the air. Whether you are a hobbyist or a dedicated DXer, SWLtools supports your activity from the antenna to the logbook. DECODING THE ON-AIR TEXT MODES Point the app at a signal and it turns it into readable text. - Morse (CW). The app follows the tone by itself and measures the sending speed from the signal, so it keeps up with hand-sent Morse as well as machine-sent. A side panel collects the callsigns it has heard, and each transmission starts on its own line when the operator hands over. - 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 your photo library. - ACARS aircraft messages, with the ones carrying a position shown on a map. Decoded text can be saved, reopened later and shared. All times, on screen and in the saved files, are UTC — the way radio logs are kept. SPECTRUM AND WATERFALL If your receiver provides an IQ output, SWLtools displays the real-time spectrum and spectrogram. Visually explore the bands and gain deeper insight into the signals you are receiving. Where the two channels of a USB adapter do not arrive perfectly in step — a common trait of audio codecs — a sample-delay correction removes the mirror image that would otherwise appear beside every signal. AUDIO RECORDING AND STORAGE Easily record and store audio directly from your receiver. Capture signals from around the world and listen to them again whenever you want, or turn a recording into a video to share. OPTIMIZED FOR THE BELKA RECEIVER SWLtools was designed to work seamlessly with the Belka receiver. It is the perfect companion for outdoor listening sessions, letting you record your DX, explore frequencies with the spectrum view, or read a weather fax from the field. The app is optimized for low power consumption when displaying the spectrum and waterfall, making it ideal for portable use. REQUIREMENTS To use SWLtools you need an inexpensive USB audio adapter (ADC/DAC) connected to your iOS device. These affordable dongles typically provide a microphone input and a headphone output, which is enough to record, to decode, and to show a single-channel spectrum. A two-channel audio interface does more: it carries a true I/Q pair, so the spectrum shows the full band above and below the tuned frequency, and it is the only kind that can play the receiver's audio through the iPhone speaker while you listen. The app tells you which class of device you have connected and what it allows, and an audio diagnostics panel shows exactly what iOS is doing with the signal if something does not sound right. Note: please make sure your receiver is compatible with the app's features and that you have the required accessories for optimal performance.

Transform your phone into a powerful Morse code communication device! MorseMessenger lets you send and receive Morse code messages using your phone's flashlight, screen, haptic feedback, and sound. Perfect for emergencies, camping, learning, or just having fun with this timeless communication method. KEY FEATURES: Multiple Transmission Methods • Flashlight - Visible signals up to 3 miles away • Screen - Bright display morse signals • Haptic - Feel the dots and dashes • Sound - Audible beep tones Smart Visual Decoder • Point camera at any flashing light source • AI-powered recognition for accurate decoding • Real-time translation to readable text • Works with distant signals Audio Decoder • Detect morse code from beeps and tones • Automatic frequency detection • Filter background noise Emergency Features • SOS Loop Mode - Continuous distress signal • Quick emergency phrases • No internet required • Works anywhere, anytime Learn Morse Code • Interactive morse code chart • Common jargon and prosigns • Practice with preset phrases • International and American morse support Message History • Save all sent and received messages • Quick message replay • Export and share your communications Customizable Settings • Adjust transmission speed • Enable/disable hardware features • Choose morse standard • Dark mode support PERFECT FOR: Emergency Situations - When cellular networks fail, morse code works Camping & Hiking - Signal across distances without cell service Amateur Radio - Practice for ham radio licensing Education - Learn historical communication methods Military & Scouts - Essential survival skill training Maritime Communication - Traditional naval signaling Privacy - Communicate without digital traces WHY MORSE CODE? In today's digital age, morse code remains one of the most reliable forms of communication. It requires minimal equipment, works over vast distances, and functions even when modern technology fails. Whether you're in an emergency, learning a new skill, or exploring communication history, MorseMessenger puts this powerful tool in your pocket. PROFESSIONAL GRADE Built with precision timing and advanced signal processing, MorseMessenger delivers professional-quality morse code transmission and reception. Our AI-enhanced decoder can recognize signals even in challenging conditions. NO ADS. NO SUBSCRIPTIONS (Basic Features) Core morse code functionality is completely free. Optional premium features unlock unlimited message history and advanced decoding. SUPPORTED STANDARDS: • International Morse Code (ITU) • American Morse Code (Railroad) • Custom timing adjustments Download MorseMessenger today and master the art of morse code communication!