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MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS
RXBRIGHT n Mode: FAX/SSTV Default: 4
Parameter:
n 0 - 9; specifying a certain set of TVBreak points
The RXBRIGHT command is used to select a certain set of TVBreak values for use with the
SSTV and Multi-Level FAX modes. The TVBreak sets within the RXBRIGHT command
control the brightness and contrast of the received SSTV and Multi-Level FAX pictures.
The smaller the RXBRIGHT number, the darker the received picture. The larger the
RXBRIGHT number, the brighter the received picture.
When the RXBRIGHT number set to 0, then the MFJ-1278B uses the current setting,
determined by the setting of the TVBreaks command. The TVBreaks command may have
been changed by the user to something other than the default. The default TVBreak setting
when RXBRIGHT is set to 0 is shown below:
0 TVB $80, $46, $47, $48, $4C, $4F, $52, $54, $59, $5C, $5E, $60, $63, $67, $69
If the RXBRIGHT command is a non-zero value, 1 through 9, the MFJ-1278B uses the
TVBreaks set that corresponds to the RXBRIGHT number. A list of the TVBreaks settings
within the RXBRIGHT command is shown below:
RXBR n TVBreak Values
0 TVB$80,$46,$47,$48,$4C,$4F,$52,$54,$59,$5C,$5E,$60,$63,$67,$69
1 TVB $80,$48,$4A,$4C,$4E,$50,$52,$54,$56,$58,$5A,$5C,$5E,$60,$62
2 TVB $80,$49,$4B,$4D,$4F,$51,$53,$55,$57,$59,$5B,$5D,$5F,$61,$63
3 TVB $80,$4A,$4C,$4E,$50,$52,$54,$56,$58,$5A,$5C,$5E,$60,$62,$64
4 TVB $80,$4B,$4D,$4F,$51,$53,$55,$57,$59,$5B,$5D,$5F,$61,$63,$65
5 TVB $80,$4C,$4E,$50,$52,$54,$56,$58,$5A,$5C,$5E,$60,$62,$64,$66
6 TVB $80,$4E,$50,$52,$54,$56,$58,$5A,$5C,$5E,$60,$62,$64,$66,$68
7 TVB $80,$4F,$51,$53,$55,$57,$59,$5B,$5D,$5F,$61,$63,$65,$67,$69
8 TVB $80,$50,$52,$54,$56,$58,$5A,$5C,$5E,$60,$62,$64,$66,$68,$6A
9 TVB $80,$51,$53,$55,$57,$59,$5B,$5D,$5F,$61,$63,$65,$67,$69,$6B