RTK ASSIST Services

Platform:

OEM719, OEM729, OEM7500, OEM7600, OEM7700, OEM7720, PwrPak7, CPT7, CPT7700, SMART7, SMART2

RTK ASSIST and RTK ASSIST PRO are subscription features that enable centimetre-level accuracies to be maintained through extended RTK corrections outages using TerraStar Corrections Services and the NovAtel Precise Point Positioning (PPP) engine. RTK ASSIST will maintain RTK-dependent operations through RTK corrections outages for as long as 20 minutes. RTK ASSIST PRO will maintain RTK dependent operation through unlimited RTK corrections outages. RTK ASSIST PRO also enables independent centimetre-level PPP positioning in areas where there is no RTK base or network coverage.

Hardware platform and antenna requirements, obtaining a subscription and confirming operation is described in TerraStar Corrections Services.

RTK ASSIST services are available as soon as the rover receiver has at least one valid RTK solution and has received the RTK ASSIST correction data. If an RTK correction outage occurs, then RTK ASSIST will maintain RTK mode until the subscription-permitted RTK ASSIST duration is exceeded. A shorter, user-defined RTK ASSIST time out can also be set using the RTKASSISTTIMEOUT command. Normal RTK operation will seamlessly resume if RTK corrections are restored at any point while RTK ASSIST is operating.

RTK ASSIST will report the RTK solution type that was present before RTK corrections were lost, unless the estimated solution standard deviation exceeds the threshold set by the RTKINTEGERCRITERIA command. If this occurs, then integer RTK solutions will be downgraded to their float RTK equivalent.

RTK ASSIST is enabled by default, but can be disabled using the RTKASSIST command. To monitor the status of RTK ASSIST, view the RTKASSISTSTATUS log.