GPS World recently published its 2017 State of the GNSS Industry Report with input from readers and experts around the world on specific questions to get their informed read on the state of the industry.   When asked to rank their concerns, the topic of “jamming, spoofing, and GNSS interference” was at the top of this list. The majority of respondents reported that they were “very concerned”or higher about this topic.  When asked to choose their preferences for GPS/GNSS backup, Low-Earth orbit satellites were one of the preferred choices – no solution received a higher percentage of first choice votes.    Link