[GreenKeys] RTTY confusion

[steve bennett]

Hello,
  I have been Googling all day and finding conflicting information.Maybe someone can set me strait.
I have the following questions about 45.45 Bd 170 split RTTY.
1) Does a hole punched in a tape represent mark or space?2) Which is a one and which is a zero? mark or space?3) What are the tone frequencies for mark and space? (I see NEW and OLD mentioned)4) How many seconds is a mark or space? (at 45.45 Bd)5) How many seconds is a stop bit?6) When I look at a Baudot chart and see A = 11000 which bit is sent first?

Thanks,-Steve

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