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I took this from the Help File:
Embedded Commands -- change speed, pause, and repeat Speed changes may be inserted into a message. Speed change commands are inserted between swuare brackets []. [sNN] sets the speed to NN WPM. For example [s25] changes the speed to 25 WPM.
The Speed Revert command , [S] (no number after the S) sets the speed back to what it was before the last speed change command. For example:
CQ CQ CQ DE AN1EIS[S15] AN1EIS[S] 'BT TNX FER THE CALL OM
Supposing the speed set in the WPM control of the form is 20WPM, the speed is changed to 15 WPM after sending the call the first time, then reverts to the normal speed (20 WPM) after sending the call the second time.
Speed changes may also be performed relative to the current speed. This is great for programming function keys that may be sent at different speeds depending on the capabilities of the other operator. [S50%] sets the speed to half of what it was. [s125%] increases the speed to 125% of the current speed, or an additional 25% faster. [s100%] is a valid command, but has no effect, since the new speed is 100% of, or the same as, the old speed.
CQ CQ CQ DE AN1EIS[S75%] AN1EIS[S] 'BT TNX FER THE CALL OM
Assuming that the original speed was 20WPM, the speed would be changed to 15WPM (75% of 20WPM), then would revert to 20WPM after sending the call the second time. If the original speed was 30WPM, the speed would change to 23WPM, then back to 30WPM.
The letter S in the speed change command may be in upper or lower case. The S in the speed change command may be omitted, except for the Speed Revert command [s].
Note that the Speed Revert command [S] sets the speed back to what it was before the last speed change command. So, in this example, supposing the beginning speed was 20 WPM, the speed would end up being 15 WPM, not 20WPM.
CQ CQ CQ DE WN4AZY [15] WN4AZY[30] 'bt tnx fer the call[s].
Speed change commands will never set the speed to lower than 5 WPM or faster than 99 WPM. If you are transmitting at 5 WPM initially, [s80%] will not change to 4 WPM. It will continue transmitting at 5 WPM. If you are transmitting at 10 WPM and send [s30%] the resulting speed will be 5 WPM, not 3 WPM.
Do not forget the closing bracket ]. If you do, the rest of the message will be ignored.
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