Mode families

Analog SSTV modes are timing contracts.

A mode tells a decoder how to interpret sync pulses, porches, component order, image dimensions, VIS or extended identification, and audio tone mapping. The family names are shorthand for those timing contracts.

Modes currently supported by SSTV Signal Desk

ModeFamilyStatusDurationFrameVISColorSequenceNotes
AVT24AVTSupported in app22.502 s128 x 120VIS 64 (0x40; AVT normal code from public 64/65/66/67 set)RGBR-G-BHistorical Amiga Video Transceiver compatibility and reference decoding.
AVT90AVTSupported in app90.004 s320 x 240VIS 68 (0x44; AVT normal code from public 68/69/70/71 set)RGBR-G-BHistorical Amiga Video Transceiver compatibility and reference decoding.
AVT94AVTSupported in app93.750 s320 x 200VIS 72 (0x48; AVT normal code from public 72/73/74/75 set)RGBR-G-BHistorical Amiga Video Transceiver compatibility and reference decoding.
FAX480FAXSupported in app138 s public catalog; app table 133.633 s without the 5-second FAX header512 x 480 image (+20 phasing lines)No Robot VIS in Dayton FAX480 timing; OK2MNM catalog lists VIS 85BWYFAX family analog SSTV operation and compatibility reference.
M1MartinSupported in app114.297 s320 x 256VIS 44 (0x2C)RGBG-B-RClassic HF color SSTV and compatibility testing.
M2MartinSupported in app58.064 s320 x 256VIS 40 (0x28)RGBG-B-RMartin family analog SSTV operation and compatibility reference.
MC110-NMMSSTVSupported in app109.703 s320 x 256N-VIS 0x14 (20; MMSSTV narrow-band code)RGBR-G-BSoftware-era analog SSTV operation and MMSSTV compatibility.
MC140-NMMSSTVSupported in app140.426 s320 x 256N-VIS 0x15 (21; MMSSTV narrow-band code)RGBR-G-BSoftware-era analog SSTV operation and MMSSTV compatibility.
MC180-NMMSSTVSupported in app180.363 s320 x 256N-VIS 0x16 (22; MMSSTV narrow-band code)RGBR-G-BSoftware-era analog SSTV operation and MMSSTV compatibility.
ML180MMSSTVSupported in app180.208 s640 x 496Extended VIS 0x8523 (34083; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
ML240MMSSTVSupported in app239.733 s640 x 496Extended VIS 0x8623 (34339; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
ML280MMSSTVSupported in app280.406 s640 x 496Extended VIS 0x8923 (35107; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
ML320MMSSTVSupported in app320.091 s640 x 496Extended VIS 0x8A23 (35363; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP110-NMMSSTVSupported in app109.832 s320 x 256N-VIS 0x04 (4; MMSSTV narrow-band code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP115MMSSTVSupported in app115.464 s320 x 256Extended VIS 0x2923 (10531; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP140MMSSTVSupported in app139.528 s320 x 256Extended VIS 0x2A23 (10787; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP140-NMMSSTVSupported in app139.530 s320 x 256N-VIS 0x05 (5; MMSSTV narrow-band code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP175MMSSTVSupported in app175.373 s320 x 256Extended VIS 0x2C23 (11299; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP73MMSSTVSupported in app72.964 s320 x 256Extended VIS 0x2523 (9507; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MP73-NMMSSTVSupported in app72.966 s320 x 256N-VIS 0x02 (2; MMSSTV narrow-band code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MR115MMSSTVSupported in app115.285 s320 x 256Extended VIS 0x4923 (18723; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MR140MMSSTVSupported in app140.374 s320 x 256Extended VIS 0x4A23 (18979; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MR175MMSSTVSupported in app175.192 s320 x 256Extended VIS 0x4C23 (19491; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MR73MMSSTVSupported in app73.298 s320 x 256Extended VIS 0x4523 (17699; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
MR90MMSSTVSupported in app90.195 s320 x 256Extended VIS 0x4623 (17955; MMSSTV 16-bit code)YCrCbY-RY-BYSoftware-era analog SSTV operation and MMSSTV compatibility.
BW12MonochromeSupported in app12.001 s160 x 120VIS 6 (0x06; green BW component, public component set 5/6/7)BWYShort black-and-white image transmission and compatibility testing.
BW8MonochromeSupported in app8.028 s160 x 120VIS 2 (0x02; green BW component, public component set 1/2/3)BWYShort black-and-white image transmission and compatibility testing.
P3PasokonSupported in app203.064 s640 x 496VIS 113 (0x71)RGBR-G-BPasokon family analog SSTV operation and compatibility reference.
P5PasokonSupported in app304.596 s640 x 496VIS 114 (0x72)RGBR-G-BPasokon family analog SSTV operation and compatibility reference.
P7PasokonSupported in app406.128 s640 x 496VIS 115 (0x73)RGBR-G-BPasokon family analog SSTV operation and compatibility reference.
PD120PDSupported in app126.112 s640 x 496VIS 95 (0x5F)YCrCbY-RY-BY-YHigh-compatibility satellite and event SSTV mode with more detail than Robot 36.
PD160PDSupported in app160.894 s512 x 400VIS 98 (0x62)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
PD180PDSupported in app187.065 s640 x 496VIS 96 (0x60)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
PD240PDSupported in app248.017 s640 x 496VIS 97 (0x61)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
PD290PDSupported in app288.702 s800 x 616VIS 94 (0x5E)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
PD50PDSupported in app49.688 s320 x 256VIS 93 (0x5D)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
PD90PDSupported in app89.995 s320 x 256VIS 99 (0x63)YCrCbY-RY-BY-YHigher-resolution color work where longer transmission time is acceptable.
R24RobotSupported in app24.002 s160 x 120VIS 4 (0x04)YCrCbY-RY-BYRobot family analog SSTV operation and compatibility reference.
R36RobotSupported in app36.002 s320 x 240VIS 8 (0x08)YCrCbY-RY-BYFast color SSTV, commonly associated with public ISS SSTV reception.
R72RobotSupported in app72.005 s320 x 240VIS 12 (0x0C)YCrCbY-RY-BYRobot family analog SSTV operation and compatibility reference.
S1ScottieSupported in app109.632 s320 x 256VIS 60 (0x3C)RGBG-B-RScottie family analog SSTV operation and compatibility reference.
S2ScottieSupported in app71.094 s320 x 256VIS 56 (0x38)RGBG-B-RScottie family analog SSTV operation and compatibility reference.
SDXScottieSupported in app268.894 s320 x 256VIS 76 (0x4C)RGBG-B-RScottie family analog SSTV operation and compatibility reference.
SC2-120WraaseSupported in app121.743 s320 x 256VIS 63 (0x3F)RGBR-G-BWraase family analog SSTV operation and compatibility reference.
SC2-180WraaseSupported in app182.038 s320 x 256VIS 55 (0x37)RGBR-G-BWraase family analog SSTV operation and compatibility reference.
SC2-60WraaseSupported in app61.544 s320 x 256VIS 59 (0x3B)RGBR-G-BWraase family analog SSTV operation and compatibility reference.