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SSTV Encoder icon

SSTV Encoder

Image encoder for Slow-Scan Television (SSTV) audio signals

License
Apache-2.0
Package
om.sstvencoder
Category
Connectivity
Latest version
2.14 · Aug 27, 2026
Minimum Android
Android 6

Download 2.14

Screenshots

SSTV Encoder screenshot 1 SSTV Encoder screenshot 2

Description

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

Available menu options:


• "Play": Sends the image

• "Stop": Stops the current sending and empties the queue

• "Pick Picture": Opens an image viewer app to select a picture

• "Take Picture": Starts a camera app to take a picture

• "Save as WAVE File": Creates a wave file in the Music folder in SSTV Encoder album

• "Transform Image":


• "Rotate": Rotates the image by 90 degrees

• "Reset": Resets image rotation and scaling



• "Modes": Lists all supported modes

All versions

VersionReleasedMinimum AndroidSize
2.14 Aug 27, 2026 Android 6 2.8 MB
2.13 May 29, 2025 Android 5.0 2.6 MB
2.12 Jan 10, 2025 Android 5.0 2.6 MB
2.11 Aug 18, 2024 Android 5.0 2.6 MB
2.10 Jan 22, 2024 Android 5.0 2.4 MB
2.9 Sep 1, 2023 Android 5.0 2.4 MB
2.8 Mar 11, 2023 Android 5.0 2.4 MB
2.7 Dec 5, 2022 Android 5.0 2.4 MB
2.6 Nov 5, 2022 Android 5.0 2.4 MB
2.5 Mar 3, 2021 Android API 15 1.4 MB

From the developer (GitHub)

APK files published by the developer on GitHub. They are signed by the developer and may not install over the other builds on this page (different signature). Links open github.com.

Version2.14 · Aug 31, 2026
app-release.apk 2.8 MB
Version2.13 · May 24, 2025
app-release.apk 2.6 MB
Version2.12 · Jan 12, 2025
app-release.apk 2.6 MB

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