Mode library
Timing, VIS, raster, and tone data
53 implementation-backed rows sit alongside 33 reference or verification rows so uncommon analog SSTV modes remain findable.
Open the technical spec sheetUK SSTV interest group
Slow Scan Television history, mode timing and receiving notes from a UK listener's bench.
Watch a known signal turn into a picture, then try the same recording. No radio is needed.
Lite 2.0: 3 free SSTV or Weather Fax receives.
A use is counted when a supported mode is identified, even if reception does not finish. Watching the demo here costs no receives.
Already receiving? Get Pro: SSTV Signal Desk for the full app with a one-time purchase. Read the trial and unlock rules.
Mode library
53 implementation-backed rows sit alongside 33 reference or verification rows so uncommon analog SSTV modes remain findable.
Open the technical spec sheetReceive
Use the UK receiving guide for ISS and satellite checks, HF listening notes, audio levels, SDR recordings, and replay checks.
Open the receiving guideChecked sources
Checked 2026-10-08T06:41:28Z: no active or upcoming dated SSTV window was found in the ARISS listing. The latest recorded window was SSTV Expedition 75 Series 33 featuring "Student Education", ending 2026-10-06T15:55:00Z, on 437.550 MHz (Robot 36). Satellite reference entries below require a separate schedule check.
Check public sourcesReceiving notes, new reference material and the latest public source checks.
Latest source check
Sources were checked at the time shown above. Public schedules can still change.
Checked 2026-10-08T06:41:28Z: no active or upcoming dated SSTV window was found in the ARISS listing. The latest recorded window was SSTV Expedition 75 Series 33 featuring "Student Education", ending 2026-10-06T15:55:00Z, on 437.550 MHz (Robot 36). Satellite reference entries below require a separate schedule check.
Read the activity logApp review
A close look at Lite's receive workflow, spectrum and waterfall, three-use allowance, saved images and permanent unlock, with the limits of our iOS checks stated.
Activity notebook
The completed 2-6 October ISS campaign, Robot 36 on 437.550 MHz, UK local times and records to keep after a pass.
The docs lead with history, mode families, timing comparisons, and per-mode pages rather than assuming one decoder or one operating style.
Compare a known test card with your own recording. The sample library includes analog SSTV, SSDV packets, DRM image services and Weather Fax line-rate strips.
Browse the sample libraryNotes are written from a UK listener's bench, with public satellite events, HF compatibility modes, and practical receiving setups kept in the same index.