Robot mode
Robot B/W 36
Robot B/W 36 is the 36 s monochrome Robot row with component-specific VIS entries; green is commonly used for BW images in the OK2MNM note.
Reference onlyMode 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.
Mode spec
| Short name | BW36 |
|---|---|
| Support status | Reference only |
| Spec status | Reference timing row from the OK2MNM SSTV mode-list PDF. |
| Duration | 36 s |
| Frame | 240 x 320 |
| Data lines | 320 |
| Public VIS | VIS 13, 14, 15 |
| Standard VIS code | 0x0D, 0x0E, 0x0F (13, 14, 15) |
| Extended/N-VIS | No |
| Color model | BW |
| Component sequence | Y |
| Line rate | 200 lpm |
| Public timing profile | Mode-list row gives 36 s total duration, 320 scan lines, 240 columns, and 200 lpm; line-level porch timing is not part of this catalog row. |
Strengths
- BW36 has a concrete catalogue row: 36 s, 240 x 320, BW, VIS 13, 14, 15.
- BW36's Y component order and 200 lpm line rate make it useful for comparing airtime, raster, and colour structure against related modes.
Tradeoffs
- BW36 is not app-supported yet, so the 36 s / 240 x 320 row should be treated as reference data rather than a verified transmit preset.
- BW36 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 BW36 as BW, VIS 13, 14, 15, 36 s, 320 lines, 240 columns, 200 lpm. Robot monochrome 36-second variant.
- SSTV Handbook Chapter 5: List of SSTV modesSSTV Handbook - accessed 2026-08-24Reference for analog SSTV mode names, VIS codes, durations, line counts, column counts, and line rates.