Use the Drop Down menus for Task and Period on the Transmitter Detail View to
find the Historic Period to be signed.
In order to sign a live Period
the Period must be closed using either Start / Stop Logging or Tasking the transmitter.
Only once it have become historic it is possible to sign the data.
To
sign the data, click

to bring up
the following dialogue:
Figure 2 - Electronic Signature for Data
To sign the data, enter the reason for signing the data and your authority to sign,
and click