Slow-scan television (SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. A literal term for SSTV is narrowband television. Analog broadcast television requires at least 6 MHz wide channels, because it transmits 25 or 30 picture frames per second (see ITU analog broadcast standards), but SSTV usually only takes up to a maximum of 3 kHz of bandwidth. It is a much slower method of still picture transmission, usually taking from about eight seconds to a couple of minutes, depending on the mode used, to transmit one image frame. Since SSTV systems operate on voice frequencies, amateurs use it on shortwave (also known as HF by amateur radio operators), VHF and UHF radio.
More : wikipedia
Ressources about SSTV, for SSTV, WEFAX and digital SSTV, by Martin OK2MNM :
Formats of slow-scan TV transmission, image resolution, transmission time and characteristics :
Online tool to convert an image to a SSTV wav file.
Review : encoding tested and approved
MultiScan 2 is amateur radio software for receiving and sending Slow Scan Television (SSTV) pictures. There are two versions of the program: MultiScan 2 which is build for OS X 10.5 and runs on PowerPC or Intel Mac with 1GHz+ processor and MultiScan 2SL, optimized for OS X 10.6 and runs on Intel Macs (32 and 64 bit). MultiScan 2 supports the following analog SSTV formats (digital SSTV is not supported):
sstv transmission tested with a FM transmitter/receiver
works well !
includes also PSK31, RTTY, FAX, PACKET, and more modes of decoding
MultiScan is amateur radio software for receiving and sending Slow Scan Television (SSTV) pictures.
encoding seems to work well
difficulties to decode
If you want an SSTV app that will show you the DX you've been missing, Black Cat SSTV is for you.
SSTV program for the Linux platform with several functions written by ON1MH Johan
Slow Scan TV - Pictures over RADIO
A page with ressources linked to the subject on la Labomedia wiki
The project "World Wide Wave" documented here and presented during an open studio session @ la Générale in july 2023
(source wikipedia EN) : Using a receiver capable of demodulating single-sideband modulation, SSTV transmissions can be heard on the following frequencies:
Band Frequency Sideband
(source wikipedia FR): Fréquences SSTV utilisées par les radioamateurs
Région 1 - Europe, l'ouest du Moyen-Orient, Afrique, le nord de l'Asie
Fréquences SSTV utilisées hors radioamateurs