“…As a general summary of alternatives for external communication, it can be noted that, (𝑖), short range (about 1 km to 2 km) typically use wireless LAN (Stelzer and Jafarmadar, 2011) or XBee radio communications (Santana-Jorge et al, 2017), (𝑖𝑖) mid range, and when the ASV is situated in areas of mobile network communication coverage (typically coastal areas), typically use Universal Mobile Telecommunications System (UMTS)/General Packet Radio Service (GPRS) (Stelzer and Jafarmadar, 2011) or 3G/GPRS (Santana-Jorge et al, 2017) mobile communications via the mobile phone network, and, (𝑖𝑖𝑖) oceanic long range, i.e., without mobile network access, is based on Iridium SBD satellite communications. The relative availability, costs, bandwidth, and real-time abilities of these different modes of communication have been analysed in (Stelzer and Jafarmadar, 2011).…”