Robot36 - SSTV Image Decoder

Ahmet Inan

About this app

Following SSTV modes are supported:

Robot Modes: 36 & 72
PD Modes: 50, 90, 120, 160, 180, 240 & 290
Martin Modes: 1 & 2
Scottie Modes: 1, 2 & DX
Wraase Mode: SC2-180

Old B/W or unsupported modes can be viewed in "Raw" mode.

On detection of the calibration header of a supported mode, the resulting image will be automatically saved to the "Pictures" directory and can be seen in the Image gallery.

With version 2, running the decoder in the background will not be supported anymore.

Ratings and reviews

Hey Ahmet, this app works really well at decoding, and that's without using a HAM radio and just playing back SSTV audio from YouTube. One note, and this doesn't affect the rating: it seems like Scottie DX peaks out the microphone and causes the app to switch to RAW for second intervals, which causes cyan-line artifacting that prevents images in that format from saving. Not your fault though, just a side effect of my mic being just OK. Everything else works great though!

Nice SSTV receiver app. I've been using it for a long time now. But at least for me the v. 2 is a regression. PD290 is finally back, but from my tests always fails to properly synchronize and cuts off large portion from right of the image. The spectrum analyzer also looks worse than v. 1 and as the description says, the app is no longer made for running in background. Improvement is only in audio settings control, but since I don't use those I returned to version 1.48 from F-Droid archive.

It wasn't designed to do phone calls. Amazing how the decoder can automatically select format. Creates interesting effects when the encoder is played through an amplifier. Would like to try this in a large reverberation sized room. Working best when at lower volume not loud enough to bounce off of walls. Scottie DX is actually the only mode that doesn't smear my profile picture. I've got this encoder and decoder set on 3 of my devices. I've sent my profile picture to myself through every single mode this pair can do. Looking forward to the day I can actually use them with a radio or even home phone.

What’s new

- added Latin American Spanish translation
- added spectrogram and made default
- added option to switch back to frequency plot
- updated libs and tools