Labels:text | diagram | line | plot | number | parallel | font OCR: Pal into DTTB Protection with real Off Air Pal signals either side of DTTB Channel 8 5 0 -5 -7 MHz COFDM 6 MHz 8VSB -10 Note: Channel 7 only has a -15 single monophonic Sound carrier which is 10 dB below the Vision carrier level -20 Protection Ratio D/U (dB), -25 -30 -35 -40 + -2000 -1500 -1000 -500 0 500 1000 1500 2000 Channel 8 DTTB Frequency Offset (kHz)
