New SSTV mode
--FAST FM--FORMAT
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1. 1-second 1900 Hz tone |
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2. Comprising 1200Hz, 1300Hz, 1100Hz, 1300Hz, 1100Hz, 1100Hz, 1300Hz, 110Hz, 110Hz and 1200Hz signals every 30ms using VIS signal 0.8 second code DAH |
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3. 5-bit start position identification signal diffused by bit synchronizing signal 62ms 31-bit M series F9A42BB0H (LSB invalid). First 4 bits of signal are "1". Last bit is "1"1 bit is 12.4ms. Accordingly, one clock of the diffusion carrier is 400ms. High signal is 3912Hz, and Low signal is 3288Hz |
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4. 240-raster signal 53.6ms x 240 lines = 12.87 seconds1 raster signal (35.2+0.4+17.6+0.4=53.6ms) Y-color difference signal is sent in 4:2:0 format. Y (brightness signal) 35.2ms, black 2800Hz and white 440Hz FM modulation 352 bits are sent by 100ƒÊs clock. Blanking 0.4ms 3600Hz tone is sent for 0.4ms. Color difference signal (odd lines Cr, even lines Cb) 17.56ms white and black (zero) 3600Hz, and are modulated at 3600Hz}800Hz, and the blanking 0.4ms 3600Hz tone is sent for 0.4ms. |
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5. 1-second 1900 Hz tone |
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6. Band required for signal transfer: 1000Hz to 6200Hz |
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Robot 36 |
Fast FM mode |
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Modulation Method |
SCFM |
SCFM |
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Max image frequency |
850Hz |
3200Hz |
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Sub-carrier frequency |
White 2300Hz Black 1500Hz |
4400HzA2800Hz |
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Synchronizing Frequency |
1200Hz |
1200Hz |
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Max deviation |
}550Hz |
}800Hz |