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Vester mode

Vester Color FAX

Vester Color FAX is a long 414 s, 512 x 480 RGB facsimile-style row, kept separate from short SSTV modes because of its much longer airtime.

Reference only

Mode sample

BBC-style colour test card and app-generated audio

The image is generated locally for this mode's raster. For supported modes, the audio sample is encoded from that image with the SSTV Signal Desk transmitter code, then published as lossless FLAC for static playback.

No app-generated audio sample is published for this reference-only mode because no matching transmitter entry exists in the app code.

Vester Color FAX SSTV BBC-style colour test card
Vester Color FAX test card, 512 x 480

Mode spec

Short nameVester Color FAX
Support statusReference only
Spec statusReference timing row from the OK2MNM SSTV mode-list PDF.
Duration414 s
Frame512 x 480
Data lines480
Public VISVIS 86
Standard VIS code0x56 (86)
Extended/N-VISNo
Color modelRGB
Component sequenceR-G-B
Line rate74.832 lpm
Public timing profileMode-list row gives 414 s total duration, 480 scan lines, 512 columns, and 74.832 lpm; line-level porch timing is not part of this catalog row.

Strengths

  • Vester Color FAX has a concrete catalogue row: 414 s, 512 x 480, RGB, VIS 86.
  • Vester Color FAX's R-G-B component order and 74.832 lpm line rate make it useful for comparing airtime, raster, and colour structure against related modes.

Tradeoffs

  • Vester Color FAX is not app-supported yet, so the 414 s / 512 x 480 row should be treated as reference data rather than a verified transmit preset.
  • Vester Color FAX still needs implementation-grade porch, sync, and pixel timing before an app-generated WAV/FLAC sample can be published with the same confidence as supported modes.

Source notes

OK2MNM SSTV Handbook chapter 5 lists Vester Color FAX as RGB, VIS 86, 414 s, 480 lines, 512 columns, 74.832 lpm. Vester color facsimile mode listed in analog SSTV mode taxonomies.