ORIGINAL MESSAGE:
On Mon, 11 Feb 2013 12:41:17 -0500 (EST), WA3FRP wrote:
>I think that this is incorrect. As I remember, USOS is enabled on the
>receiver's end and adds the extra LTRS on space. I don't believe that the
>transmitting station sends a LTRS character along with each SPACE character
>that it detects. This is a carryover from the mechanical teleprinter age when
>USOS was enabled in Teletype and other similar machines. Does anyone have a
>counter to this claim?
REPLY:
I think you're right. If I recall correctly, when a space is detected by
either the transmitter or receiver, they each reset themselves back to FIGS
case, but no actual FIGS character is sent. The slowdown comes when the
space is followed by more numbers, in which case another FIGS character is
sent. If only letters are being sent, the space only causes a reset, not an
actual sent character.
Does that sound right?
Bill, W6WRT
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