SSTV Signal Desk

Decode Slow Scan Television (SSTV), ham-radio and ISS signals into images, or turn your own pictures into transmit-ready audio.

Receive live signals through the microphone or decode supported audio files. SSTV monitors the spectrum, adjusts frequency and slant, and lets you keep useful partial decodes when a transmission ends early.

Prepare and transmit images in a broad range of Martin, Scottie, Robot, PD, Pasokon, monochrome, FAX and AVT modes. Save decoded images and generated WAV files in clear RX/TX archives.

Built for iPhone, iPad and Mac:
• Guided Simple and Advanced modes
• Station profile and QSO logbook
• Private iCloud sync across devices and editions
• Professional Signal Desk with live spectrum
• On-device decoding and encoding
• Automatic frequency and slant correction
• Partial-image saving for useful incomplete decodes
• Mode guide with timing and resolution details
• Receive and transmit history
• Doppler-aware satellite tracking, pass reminders and provider-aware tuning
• SSDV and advanced digital image reception, callsign overlays, FSK/CW IDs, templates and automation
• Portrait and landscape layouts
• Localized interface in 12 languages

For amateur-radio operators, satellite listeners and anyone curious about pictures carried by sound.