TAP (Tersus Advanced Positioning) is a satellite-based precise point positioning service developed by Tersus GNSS, which allows users to achieve centimeter-level high-precision positioning worldwide. With TAP, the GNSS rover receiver will not need to work with the local RTK base station or CORS, but directly receives corrections broadcast by the satellites, such as ephemeris error, satellite clock error, etc.

With only single GNSS receiver, no need Base, no need network, TAP can achieve centimeter-level high-precision positioning worldwide and is particularly significant in marine surveying, precise agriculture, and autonomous driving industries.

Initialization time: <3min

Accuracy: horizontal 15mm and vertical 30mm

Coverage: Global

Service availability: 99.99%

Tersus TAP service is delivered by geostationary satellites(L band) or Internet(back up)

Tersus TAP coordinates are computed in ITRF2020 and the current epoch; Tersus android field collection software Nuwa can configure the frame and epoch conversion parameters to convert the TAP results to the local coordinate system.

No, you may move the receiver while waiting for it to initialize. The initialization time will be similar whether the receiver is static or not.

Activating TAP service is very easy. Simply place the receiver in an open air environment at the designated activation time and ensure it remains powered on to activate it through L-band.

TAP offers flexible subscription options, typically on an annual basis. You can subscribe at any time. Please note that the expiration of the TAP service does not affect the normal functionality of RTK features.

Currently, several OEM boards, including the MX206 and BX50 TAP series, support TAP. Additionally, TERSUS GNSS receivers such as OSCAR-TAP and LUKA-TAP are compatible. More models will be added to TAP support in the future.