Morse Mania vs Weather Balloon Hunter

In both the receiving and sending modes, the app starts with the easiest letters (E and T) and moves to more complicated ones. Once you master all the letters, it teaches you numbers and other symbols, and then proceeds to Prosigns, Q-codes, abbreviations, words, Callsigns, phrases and sentences. ---------------------------- Features: - 135 levels teach you to recognize (receive) 26 Latin letters, numbers, 18 punctuation marks, 20 non-Latin extensions, procedure signs (prosigns), Q-codes, most popular abbreviations, words, callsigns, phrases and sentences. - Another 135 levels teach and train you to send the Morse code. - 5 output modes: audio (default), blinking light, flashlight, vibration and light + sound. - 7 different keys for sending Morse code (e.g. iambic key). - 52 challenge levels test and consolidate your knowledge. - Custom level: create your own level to practice symbols of your choice. Save your own list of symbols and load anytime. - NEW! “Playground” to test and train your Morse code sending skills. - Smart learning: custom level choice is pre-populated with symbols where you made the mistakes most recently. - Support for external keyboard. - Hints (for free!) when you need help. - Explore mode: if you want to hear the symbols, or see a list of prosigns, Q-codes & other abbreviations and hear their sound representation. - 4 themes to choose from, from bright to dark. - 9 different keyboard layouts: QWERTY, AZERTY, QWERTZ, ABCDEF, Dvorak, Colemak, Maltron, Workman, Halmak. - Randomize letter/symbol positions for each level (to ensure you're not just learning the position of the symbols on the keyboard). - Absolutely no ads. - Works completely offline. ---------------------------- Completely customize the app: - Adjustable speed: from 5 to 45 WPM (words per minute). Less than 20 is not recommended though, as it doesn't help you to actually learn the language. - Adjustable sound frequency: 400 to 1000 Hz. - Adjustable Farnsworth speed: from 5 to 45 WPM. Determines how long are the spaces between letters. - Adjustable difficulty level for sending the Morse code. - Disable/enable the progress circle in Settings. - Settings for progress speed, review time, time pressure and lives in challenges. - Setting for background noise: to better support some Bluetooth earphones that keep disconnecting from the phone while you play, or just to make it more challenging. - Ability to jump to the past levels to revise, or skip some if you're already familiar with certain characters. - Ability to reset mistakes and levels. ---------------------------- Read our dedicated blog posts to get the most out of the game. Have any comments, questions or advice? Don't hesitate to email us, we'll reply right away! ---------------------------- Links: - Privacy Policy: http://morse.countrymania.net/privacy - Terms of Use: http://morse.countrymania.net/tos Have fun learning!

Track and recover weather balloons with professional-grade tools used by the global amateur radio community. BalloonHunter connects to MySondyGo devices via Bluetooth and integrates with the SondeHub APRS network for comprehensive real-time balloon tracking. KEY FEATURES Dual Connectivity - MySondyGo BLE - Direct connection to RadioSondyGo devices for real-time telemetry - SondeHub APRS - Automatic fallback to global amateur radio network - Smart polling adjusts API cadence based on data freshness (15s to 5min to 1hr) Professional Prediction - Tawhiri API - Leverages CUSF's professional trajectory prediction engine - Real-time updates every 60 seconds during flight - Accurate burst and landing point calculations with uncertainty mapping - Adaptive parameters use live descent rates when available Hunter-Focused Interface - Map-centric design optimized for field tracking operations (70% map view) - Live overlays show balloon track, prediction path, landing zones, and your position - Smart route recalculation only when needed: - Off-route detection (50m+ deviation) - Landing point movement (100m+ shift) - Transport mode changes (car/bike) - Apple Maps navigation with one-tap routing - Landing change alerts during CarPlay navigation (300m+ shifts) - Heading mode with compass-locked view for directional navigation Advanced Tracking - 7-state telemetry state machine for robust operation - Automatic BLE/APRS switching with 30-second debounce - Background Bluetooth support for continuous connection - Local data persistence with CSV export capability - Offline track viewing from cached data TECHNICAL DETAILS - Requires iOS 17.6 or later - Bluetooth and location permissions required - Internet connection needed for APRS and predictions - Works with or without MySondyGo hardware - Free and open source - no ads, no tracking, no accounts PERFECT FOR - Weather balloon enthusiasts and chasers - Amateur radio operators (hams) - High-altitude balloon (HAB) recovery teams - Educational institutions launching research balloons - Anyone interested in atmospheric science PRIVACY & DATA - All location data stays on your device - No personal information collected - No user accounts or registration required - Open source code available on GitHub - Full privacy policy included Built for the weather balloon tracking community by HB9BLA.