This morning I heard an article on the BBC about the Event Horizon Telescope. This is a project that connects radio telescopes all over the planet using GPS time to synchronize the data to create a virtual radio telescope the size of the earth, with increased resolution. That reminded me that at one time there was a possible use for the GPS in a FlexRadio to use timestamps for diversity reception on two (or more) separate radios. Does anyone know if anything has been done with this? Are the VITA packets timestamped with GPS times?