Frequently Asked Questions
Everything you need to know about Nomad drifters, communications, batteries and operations.
SouthTEK has benefited from lean manufacturing techniques from the automotive industry, allowing us to deliver high-end ocean instrumentation at a fraction of the typical cost.
Position sampling retrieves location data from GNSS systems and stores it in buoy memory. Transmission sends this data to the Internet via LD Manager for user access.
Operations can alternate sampling and transmission steps (e.g. hourly sampling with hourly transmission) or sample multiple positions before transmitting.
Sampling and transmission rates range from 1 minute to 24 hours.
Offshore Nomads use Iridium for global coverage, with higher communication costs.
Coastal Nomads use GPRS networks with two years of included communications, but operate only in coastal areas with mobile coverage.
Between 6 and 24 hours, depending on the level of discharge.
Search Mode progressively increases position sampling frequency as vessels approach the buoys for recovery, balancing tracking precision with Iridium communication costs.
Contact our resellers in your country or email SouthTEK directly. Partnership opportunities are available for prospective resellers.
Software is provided for free with the hardware, plus one recharger for the rechargeable batteries.
Coastal Nomads include two years of communications.
Offshore Nomads use customised Iridium plans tailored to individual customer needs.
Free browser-based software for operating and configuring buoys. Features include adjusting sampling rates, activating search mode, viewing positions on Google Maps and downloading data.
Yes, as many times as you wish.
Buoys with high-quality Lithium Polymer batteries can be reused an innumerable number of times.
Barometric pressure and water temperature are standard additions. Contact SouthTEK for other sensor options.
Coastal Nomads require GPRS coverage (shoreline to approximately 7 miles offshore).
Offshore Nomads operate anywhere on Earth.
Still got questions?
Our team is happy to talk you through deployments, communications plans and custom configurations.