Following some recent research it has been found that in some instances OxTS products exhibit trigger bounce. Where on trigger press results in multiple recorded triggers.
For users using their own trigger switches the additions below can be added as a de-bounce circuit in between the trigger button and the 9-pin connector.
Furthermore adding the additional advanced commands below to your configuration via the NAVconfig options page has been found to help.
->gps1: UNLOG COM2 MARKTIMEB
->gps1: UNLOG COM2 MARK2TIMEB
A combination of the two above fixes in most situations will result in a 1:1 trigger input:recorded ratio.