On Tuesday the US House of Representatives Subcommittee on Coast Guard and Maritime Transportation held a hearing on Blue Technology. In his written testimony, Mr. Michael Jones, President of the Maritime Alliance, discussed GPS jamming and spoofing as a maritime problem:

“Likewise, jamming and spoofing of GPS is a major concern in maritime. In the last several years we have seen an increase in this activity with container ports idled, AIS safety systems disabled, and ships’ positions being reported miles from their actual locations. GPS’ vulnerability to disruption is a significant obstacle to safe use of remotely-operated and autonomous systems. One way to address this is by establishing an e-Loran system to complement and backup GPS.”

Congressman Garamendi also commented about the many problems associated with relying entirely on GPS for PNT services.