Tools · Open source
SSTV Encoder
Image encoder for Slow-Scan Television (SSTV) audio signals
Opens the official F-Droid page
About SSTV Encoder
Modes
Supported SSTV modes:
Martin Modes : Martin 1, Martin 2
PD Modes : PD 50, PD 90, PD 120, PD 160, PD 180, PD 240, PD 290
Robot Modes : Robot 36 Color, Robot 72 Color
Scottie Modes : Scottie 1, Scottie 2, Scottie DX
Wraase Modes : Wraase SC2 180
The mode specifications are taken from the Dayton Paper, JL Barber, "Proposal for SSTV Mode Specifications", 2000:
http://www.barberdsp.com/downloads/Dayton%20Paper.pdf
Image
To load an image:
tap "Take Picture" or "Pick Picture" menu button, or
use the Share option of an app like e.g. Gallery.
To keep the aspect ratio, black borders will be added if necessary.
Original image can be resend using another mode without reloading.
After image rotation or mode changing the image will be scaled to that mode's native size.
After closing the app the loaded image will not be stored.
Text Overlay
Actions for working with text overlays:
Single tap to add a text overlay.
Single tap on text overlay to edit it.
Long press to move text overlay.
Remove the text to remove a text overlay.
After closing the app all text overlays will be stored and reloaded when restarting.
Menu
How to install SSTV Encoder
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open SSTV Encoder from your app drawer.

