CoronaSDR vs Simple Morse Code Keyboard

Explore the radio spectrum from your iPhone or iPad. CoronaSDR connects to an RTL-SDR receiver through a rtl_tcp server on your local network, bringing live tuning, audio, spectrum, and waterfall displays to your screen. LISTEN AND EXPLORE • Receive AM, narrow FM, wide FM stereo, USB, LSB and CW. • Find signals with the live spectrum and waterfall. • Tune by dragging across the spectrum and adjust receive bandwidth, squelch, and gain. • Scan saved stations or a frequency range. • Keep listening in the background with system playback controls. NEW: CW AND FT8 DECODING • Turn a selected CW signal into text, with listening-pitch and decoding-speed controls. • Receive FT8 messages with a message history, details, and text sharing. • Mute listening audio while decoding continues in the foreground. • Freeze displayed results to read them while reception continues. CW and FT8 decoding are receive-only and currently experimental. Decoding requires an active receiver connection and pauses when the app moves to the background. Some signals and messages may be missed. FT8 reception times are estimates. SAVE YOUR STATIONS • Organize favorites with tags. • Import and export station lists in CSV or TSV format. • Return to saved frequencies and listening modes. ADJUST YOUR RECEIVER • Set gain and frequency correction in PPM. • Control direct sampling, offset tuning and bias tee where supported by your receiver and server. • Adjust audio filters, audio gain control and noise blanking. • Use deep links to open listening actions. REQUIREMENTS • iPhone or iPad running iOS 18 or later. • An RTL-SDR receiver connected to a running rtl_tcp server on your local network. • A suitable antenna for the signals you want to receive. Receiver hardware, antenna, and server are required separately. Available frequencies and reception quality depend on your equipment and setup. CoronaSDR is free and open source.

Type in Morse Code — anywhere on iOS. A full system Morse Code Keyboard that replaces your standard one with a real CW keyer. Send a text, write an email, or post to social — all in dits and dahs. Built for ham radio operators who want authentic CW feel on mobile, and for learners who pick up the code fastest by using it every day. Keying Styles • Straight Key • Single Paddle • Iambic Paddle • Adjustable WPM Supported Morse Code Alphabets • ITU International • Spanish • Russian • Ukrainian • Bulgarian • Greek • Hebrew • Arabic • Persian • Kurdish • Japanese Wabun (Kana code) Designed for iOS • System-wide Morse Code Keyboard — works in every app • Portrait and landscape layouts • Low-latency input tuned for high WPM • Fully configurable Morse Code Keyboard For experts: the responsiveness and timing controls you need to send clean code at speed. For beginners: the best Morse Code trainer is daily use. Replace your keyboard, build muscle memory, and learn Morse code without "studying" it. Download the Morse Code Keyboard today and put a key in your pocket. 73!