Technical spec sheet
Analog SSTV mode spec sheet
This table separates 46 modes implemented in SSTV Signal Desk from historical and uncommon analog rows compiled from checked SSTV references. The table uses public VIS/N-VIS labels where a reference publishes them; app raw VIS identifiers and app timing fields are kept on the detail pages so implementation data is not confused with public mode specifications.
| Mode | Family | Status | Duration | Frame | VIS | Color | Sequence | Notes |
|---|---|---|---|---|---|---|---|---|
| AVT104 | AVT | Needs verification | 96 s listed for AVT104 | 256 x 256 | VIS not confirmed in checked sources | RGB | R-G-B | AVT104 is a reference-only analog SSTV row with 96 s duration, 256 x 256 raster, RGB color model, and VIS not confirmed in checked sources. |
| AVT125BW | AVT | Reference only | 133 s listed for AVT125 BW | 320 x 400 | VIS 80, 81, 82, 83 | BW | Y | AVT125BW is a reference-only analog SSTV row with 133 s duration, 320 x 400 raster, BW color model, and VIS 80, 81, 82, 83. |
| AVT16h | AVT | Needs verification | 16 s | 128 x 256 | VIS not confirmed in checked sources | BW or single RGB component | single component | AVT16h is a reference-only analog SSTV row with 16 s duration, 128 x 256 raster, BW or single RGB component color model, and VIS not confirmed in checked sources. |
| AVT16w | AVT | Needs verification | 16 s | 256 x 128 | VIS not confirmed in checked sources | BW or single RGB component | single component | AVT16w is a reference-only analog SSTV row with 16 s duration, 256 x 128 raster, BW or single RGB component color model, and VIS not confirmed in checked sources. |
| AVT188 | AVT | Needs verification | 196 s listed for AVT188 | 320 x 400 | VIS 76, 77, 78, 79 | RGB | R-G-B | AVT188 is a reference-only analog SSTV row with 196 s duration, 320 x 400 raster, RGB color model, and VIS 76, 77, 78, 79. |
| AVT24 | AVT | Supported in app | 22.502 s | 128 x 120 | VIS 64 (0x40; AVT normal code from public 64/65/66/67 set) | RGB | R-G-B | Historical Amiga Video Transceiver compatibility and reference decoding. |
| AVT32 | AVT | Needs verification | 32 s | 256 x 256 | VIS not confirmed in checked sources | BW or single RGB component | single component | AVT32 is a reference-only analog SSTV row with 32 s duration, 256 x 256 raster, BW or single RGB component color model, and VIS not confirmed in checked sources. |
| AVT48h | AVT | Needs verification | 48 s | 128 x 256 | VIS not confirmed in checked sources | RGB | R-G-B | AVT48h is a reference-only analog SSTV row with 48 s duration, 128 x 256 raster, RGB color model, and VIS not confirmed in checked sources. |
| AVT48w | AVT | Needs verification | 48 s | 256 x 128 | VIS not confirmed in checked sources | RGB | R-G-B | AVT48w is a reference-only analog SSTV row with 48 s duration, 256 x 128 raster, RGB color model, and VIS not confirmed in checked sources. |
| AVT8 | AVT | Needs verification | 8 s | 128 x 128 | VIS not confirmed in checked sources | BW or single RGB component | single component | AVT8 is a reference-only analog SSTV row with 8 s duration, 128 x 128 raster, BW or single RGB component color model, and VIS not confirmed in checked sources. |
| AVT90 | AVT | Supported in app | 90.004 s | 320 x 240 | VIS 68 (0x44; AVT normal code from public 68/69/70/71 set) | RGB | R-G-B | Historical Amiga Video Transceiver compatibility and reference decoding. |
| AVT94 | AVT | Supported in app | 93.750 s | 320 x 200 | VIS 72 (0x48; AVT normal code from public 72/73/74/75 set) | RGB | R-G-B | Historical Amiga Video Transceiver compatibility and reference decoding. |
| FAX480 | FAX | Supported in app | 138 s public catalog; app table 133.633 s without the 5-second FAX header | 512 x 480 image (+20 phasing lines) | No Robot VIS in Dayton FAX480 timing; OK2MNM catalog lists VIS 85 | BW | Y | FAX family analog SSTV operation and compatibility reference. |
| SP-17 | FAX | Reference only | 17 s | 128 x 256 | VIS 125 | BW | Y | SP-17 is a 17 s black-and-white analog image mode row, useful as a compact monochrome comparison point. |
| FAST FM | Kenwood FAST FM | Reference only | 13 s | 320 x 240 | VIS 90 | YCrCb | Y-RY-BY | Kenwood FAST FM is a very fast 13 s YCrCb row; the OK2MNM note marks its VIS behavior as odd parity. |
| HQ1 | Martin | Reference only | 90 s | 320 x 256 | VIS 41 | YCrCb | Y-RY-BY | Martin HQ1 is a high-quality Martin-family reference mode using color-difference coding rather than the classic Martin RGB line order. |
| HQ2 | Martin | Reference only | 112 s | 320 x 256 | VIS 42 | YCrCb | Y-RY-BY | Martin HQ2 is a longer high-quality Martin-family reference mode with the same 320 x 256 raster as HQ1. |
| HQ3 | Martin | Needs verification | 63 s | 320 x 144 | VIS unknown in OK2MNM table | YCrCb | Y-RY-BY | Martin HQ3 is listed as a 63 s, 320 x 144 YCrCb high-quality Martin-family mode, but the checked table does not publish its VIS code. |
| HQ4 | Martin | Needs verification | 51 s | 320 x 144 | VIS unknown in OK2MNM table | YCrCb | Y-RY-BY | Martin HQ4 is listed as a 51 s, 320 x 144 YCrCb high-quality Martin-family mode, but the checked table does not publish its VIS code. |
| M1 | Martin | Supported in app | 114.297 s | 320 x 256 | VIS 44 (0x2C) | RGB | G-B-R | Classic HF color SSTV and compatibility testing. |
| M2 | Martin | Supported in app | 58.064 s | 320 x 256 | VIS 40 (0x28) | RGB | G-B-R | Martin family analog SSTV operation and compatibility reference. |
| M3 | Martin | Reference only | 57 s | 320 x 128 | VIS 36 | RGB | G-B-R | M3 is a reference-only analog SSTV row with 57 s duration, 320 x 128 raster, RGB color model, and VIS 36. |
| M4 | Martin | Reference only | 29 s | 320 x 128 | VIS 32 | RGB | G-B-R | M4 is a reference-only analog SSTV row with 29 s duration, 320 x 128 raster, RGB color model, and VIS 32. |
| MC110-N | MMSSTV | Supported in app | 109.703 s | 320 x 256 | N-VIS 0x14 (20; MMSSTV narrow-band code) | RGB | R-G-B | Software-era analog SSTV operation and MMSSTV compatibility. |
| MC140-N | MMSSTV | Supported in app | 140.426 s | 320 x 256 | N-VIS 0x15 (21; MMSSTV narrow-band code) | RGB | R-G-B | Software-era analog SSTV operation and MMSSTV compatibility. |
| MC180-N | MMSSTV | Supported in app | 180.363 s | 320 x 256 | N-VIS 0x16 (22; MMSSTV narrow-band code) | RGB | R-G-B | Software-era analog SSTV operation and MMSSTV compatibility. |
| ML180 | MMSSTV | Supported in app | 180.208 s | 640 x 496 | Extended VIS 0x8523 (34083; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| ML240 | MMSSTV | Supported in app | 239.733 s | 640 x 496 | Extended VIS 0x8623 (34339; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| ML280 | MMSSTV | Supported in app | 280.406 s | 640 x 496 | Extended VIS 0x8923 (35107; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| ML320 | MMSSTV | Supported in app | 320.091 s | 640 x 496 | Extended VIS 0x8A23 (35363; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP110-N | MMSSTV | Supported in app | 109.832 s | 320 x 256 | N-VIS 0x04 (4; MMSSTV narrow-band code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP115 | MMSSTV | Supported in app | 115.464 s | 320 x 256 | Extended VIS 0x2923 (10531; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP140 | MMSSTV | Supported in app | 139.528 s | 320 x 256 | Extended VIS 0x2A23 (10787; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP140-N | MMSSTV | Supported in app | 139.530 s | 320 x 256 | N-VIS 0x05 (5; MMSSTV narrow-band code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP175 | MMSSTV | Supported in app | 175.373 s | 320 x 256 | Extended VIS 0x2C23 (11299; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP73 | MMSSTV | Supported in app | 72.964 s | 320 x 256 | Extended VIS 0x2523 (9507; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MP73-N | MMSSTV | Supported in app | 72.966 s | 320 x 256 | N-VIS 0x02 (2; MMSSTV narrow-band code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MR115 | MMSSTV | Supported in app | 115.285 s | 320 x 256 | Extended VIS 0x4923 (18723; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MR140 | MMSSTV | Supported in app | 140.374 s | 320 x 256 | Extended VIS 0x4A23 (18979; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MR175 | MMSSTV | Supported in app | 175.192 s | 320 x 256 | Extended VIS 0x4C23 (19491; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MR73 | MMSSTV | Supported in app | 73.298 s | 320 x 256 | Extended VIS 0x4523 (17699; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| MR90 | MMSSTV | Supported in app | 90.195 s | 320 x 256 | Extended VIS 0x4623 (17955; MMSSTV 16-bit code) | YCrCb | Y-RY-BY | Software-era analog SSTV operation and MMSSTV compatibility. |
| BW12 | Monochrome | Supported in app | 12.001 s | 160 x 120 | VIS 6 (0x06; green BW component, public component set 5/6/7) | BW | Y | Short black-and-white image transmission and compatibility testing. |
| BW8 | Monochrome | Supported in app | 8.028 s | 160 x 120 | VIS 2 (0x02; green BW component, public component set 1/2/3) | BW | Y | Short black-and-white image transmission and compatibility testing. |
| TV-1 | MSCAN | Reference only | 320 s | 320 x 256 | VIS 104 | RGB | R-G-B | MSCAN TV-1 is a long 320 s RGB software-era mode row, kept for compatibility with historical MSCAN references. |
| TV-2 | MSCAN | Reference only | 320 s | 320 x 256 | VIS 105 | RGB | R-G-B | MSCAN TV-2 is listed with the same duration and raster as TV-1 but a different VIS and line rate. |
| P3 | Pasokon | Supported in app | 203.064 s | 640 x 496 | VIS 113 (0x71) | RGB | R-G-B | Pasokon family analog SSTV operation and compatibility reference. |
| P5 | Pasokon | Supported in app | 304.596 s | 640 x 496 | VIS 114 (0x72) | RGB | R-G-B | Pasokon family analog SSTV operation and compatibility reference. |
| P7 | Pasokon | Supported in app | 406.128 s | 640 x 496 | VIS 115 (0x73) | RGB | R-G-B | Pasokon family analog SSTV operation and compatibility reference. |
| PD120 | PD | Supported in app | 126.112 s | 640 x 496 | VIS 95 (0x5F) | YCrCb | Y-RY-BY-Y | High-compatibility satellite and event SSTV mode with more detail than Robot 36. |
| PD160 | PD | Supported in app | 160.894 s | 512 x 400 | VIS 98 (0x62) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| PD180 | PD | Supported in app | 187.065 s | 640 x 496 | VIS 96 (0x60) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| PD240 | PD | Supported in app | 248.017 s | 640 x 496 | VIS 97 (0x61) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| PD290 | PD | Supported in app | 288.702 s | 800 x 616 | VIS 94 (0x5E) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| PD50 | PD | Supported in app | 49.688 s | 320 x 256 | VIS 93 (0x5D) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| PD90 | PD | Supported in app | 89.995 s | 320 x 256 | VIS 99 (0x63) | YCrCb | Y-RY-BY-Y | Higher-resolution color work where longer transmission time is acceptable. |
| J120 | Proskan | Reference only | 120 s | 320 x 240 | VIS 100 | RGB | R-G-B | Proskan J120 is a 120 s, 320 x 240 RGB row from the Proskan family. |
| BW24 | Robot | Reference only | 24 s | 240 x 320 | VIS 9, 10, 11 | BW | Y | Robot B/W 24 is a monochrome Robot row with component-specific VIS entries listed for red, green, and blue component use. |
| BW36 | Robot | Reference only | 36 s | 240 x 320 | VIS 13, 14, 15 | BW | Y | 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. |
| C12 | Robot | Reference only | 12 s | 160 x 120 | VIS 0 | YCrCb | Y-RY-BY | Robot Color 12 is the 12 s Robot color-difference row; it is useful for understanding the short Robot color family below Robot 24/36/72. |
| C24 | Robot | Reference only | 24 s | 160 x 120 | VIS 4 | YCrCb | Y-RY-BY | Robot Color 24 is the catalog form of Robot 24: 24 s, 160 x 120, YCrCb color-difference coding. |
| C36 | Robot | Reference only | 36 s | 320 x 240 | VIS 8 | YCrCb | Y-RY-BY | Robot Color 36 is the catalog form of Robot 36, the highly compatible 36 s mode often used for public ISS SSTV. |
| C72 | Robot | Reference only | 72 s | 320 x 240 | VIS 12 | YCrCb | Y-RY-BY | Robot Color 72 is the longer 72 s Robot color-difference row, trading airtime for more chroma detail than Robot 36. |
| R24 | Robot | Supported in app | 24.002 s | 160 x 120 | VIS 4 (0x04) | YCrCb | Y-RY-BY | Robot family analog SSTV operation and compatibility reference. |
| R36 | Robot | Supported in app | 36.002 s | 320 x 240 | VIS 8 (0x08) | YCrCb | Y-RY-BY | Fast color SSTV, commonly associated with public ISS SSTV reception. |
| R72 | Robot | Supported in app | 72.005 s | 320 x 240 | VIS 12 (0x0C) | YCrCb | Y-RY-BY | Robot family analog SSTV operation and compatibility reference. |
| DX2 | Scottie | Reference only | 136 s | 320 x 256 | VIS 80 | RGB | G-B-R | DX2 is a reference-only analog SSTV row with 136 s duration, 320 x 256 raster, RGB color model, and VIS 80. |
| S1 | Scottie | Supported in app | 109.632 s | 320 x 256 | VIS 60 (0x3C) | RGB | G-B-R | Scottie family analog SSTV operation and compatibility reference. |
| S2 | Scottie | Supported in app | 71.094 s | 320 x 256 | VIS 56 (0x38) | RGB | G-B-R | Scottie family analog SSTV operation and compatibility reference. |
| S3 | Scottie | Reference only | 55 s | 320 x 128 | VIS 52 | RGB | G-B-R | S3 is a reference-only analog SSTV row with 55 s duration, 320 x 128 raster, RGB color model, and VIS 52. |
| S4 | Scottie | Reference only | 36 s | 320 x 128 | VIS 48 | RGB | G-B-R | S4 is a reference-only analog SSTV row with 36 s duration, 320 x 128 raster, RGB color model, and VIS 48. |
| SDX | Scottie | Supported in app | 268.894 s | 320 x 256 | VIS 76 (0x4C) | RGB | G-B-R | Scottie family analog SSTV operation and compatibility reference. |
| Vester Color FAX | Vester | Reference only | 414 s | 512 x 480 | VIS 86 | RGB | R-G-B | 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. |
| SC1-24 | Wraase | Reference only | 24 s | 128 x 128 | VIS 16 | RGB | R-G-B | SC1-24 is a reference-only analog SSTV row with 24 s duration, 128 x 128 raster, RGB color model, and VIS 16. |
| SC1-48 | Wraase | Reference only | 48 s | 256 x 128 | VIS 20 | RGB | R-G-B | SC1-48 is a reference-only analog SSTV row with 48 s duration, 256 x 128 raster, RGB color model, and VIS 20. |
| SC1-48Q | Wraase | Reference only | 48 s | 128 x 256 | VIS 24 | RGB | R-G-B | SC1-48Q is a reference-only analog SSTV row with 48 s duration, 128 x 256 raster, RGB color model, and VIS 24. |
| SC1-96 | Wraase | Reference only | 96 s | 256 x 256 | VIS 28 | RGB | R-G-B | SC1-96 is a reference-only analog SSTV row with 96 s duration, 256 x 256 raster, RGB color model, and VIS 28. |
| SC1-BW16 | Wraase | Reference only | 16 s | 256 x 120 | VIS 21, 22, 23 | BW | Y | Wraase SC1 B/W 16 doubles the B/W 8 airtime and horizontal columns while keeping the 120-line row. |
| SC1-BW24 | Wraase | Reference only | 24 s | 128 x 256 | VIS 25, 26, 27 | BW | Y | Wraase SC1 B/W 24 is a 24 s monochrome SC1 row with 128 columns and 256 listed lines. |
| SC1-BW32 | Wraase | Reference only | 32 s | 256 x 240 | VIS 29, 30, 31 | BW | Y | Wraase SC1 B/W 32 is the 32 s monochrome SC1 row with 256 columns and 240 listed lines. |
| SC1-BW8 | Wraase | Reference only | 8 s | 128 x 120 | VIS 17, 18, 19 | BW | Y | Wraase SC1 B/W 8 is an 8 s monochrome SC1 row with component-specific VIS entries for red, green, and blue component use. |
| SC2-120 | Wraase | Supported in app | 121.743 s | 320 x 256 | VIS 63 (0x3F) | RGB | R-G-B | Wraase family analog SSTV operation and compatibility reference. |
| SC2-180 | Wraase | Supported in app | 182.038 s | 320 x 256 | VIS 55 (0x37) | RGB | R-G-B | Wraase family analog SSTV operation and compatibility reference. |
| SC2-30 | Wraase | Reference only | 30 s | 320 x 128 | VIS 51 | RGB | R-G-B | SC2-30 is a reference-only analog SSTV row with 30 s duration, 320 x 128 raster, RGB color model, and VIS 51. |
| SC2-60 | Wraase | Supported in app | 61.544 s | 320 x 256 | VIS 59 (0x3B) | RGB | R-G-B | Wraase family analog SSTV operation and compatibility reference. |