DLx and SPEEDBOX
In this configuration, the GPS data is provided by the SPEEDBOX. The DL1 does not therefore require a GPS antenna. However, for the DL1 mk2, the files saved will not be time stamped if the DL1 does not have a GPS antenna attached, and therefore it is preferable, although not essential, to also add a GPS antenna to the DL1. For the DL1 mk3 this is not an issue, since it can correctly timestamp files using the incoming GPS serial data from the SPEEDBOX.
Please note that in this configuration it is important that both the SPEEDBOX and the DLx are configured to work together correctly. There is more information about this on these pages: