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Welcome to the TrigNet Web Application
HERE YOU CAN:
Download high-precision GNSS files in RINEX format (Receiver Independent) FREE OF CHARGE.
Generate user-defined RINEX formatted data files utilising the Reference Data Shop Utility;
View the TrigNet Sensor Map. A live map indicating all TrigNet stations and their current status.;
Get access to the TrigNet real-time correction service to enhance positioning precision.
>>> It eliminates the need for users to set up their own base stations, offering centimeter-level accuracy.
REGISTRATION:
Users MUST register on the Trignet website in order to access the real-time service FREE OF CHARGE.
The registration information will only be used for the statistical monitoring of downloaded data.
INTRODUCTION TO TRIGNET:
TrigNet is South Africa's CORS network. A national network of, continuously operating Global Navigation Satellite System (GNSS) base stations.
It is managed from a control centre at the Chief Directorate, National Geospatial Information (CD:NGI), located in Cape Town, South Africa.
It provides free, high-precision GNSS data for agriculture, surveying, mapping, engineering, and scientific applications, through both post-processing and real-time services.
TrigNet have over 6000 registered users and play a critical role in providing a reliable GNSS service in South Africa.
TRIGNET'S REAL-TIME SERVICE:
What is required to connect to the TrigNet reel-time service?
Internet Protocol (IP) address: 196.15.132.2
Internet Port : 2101
User Security : Username and password.
Select the MOUNT POINT to receive RTK corrections from.Single base or a virtual referance station (VRS).
Single base RTK connections are available from all 70 TrigNet stations. (GPS and Glonass observations).
Two Multi-constellation TrigNet stations exist (Cape Town and Pretoria) track GPS, GLONASS, Galileo, and BeiDou signals.
>> Example: Sbok-SB (single base) or RTKNetKZN (VRS Network)
For drones, please refer to the "Mount Point list" provided on the FTP site.
Most field receivers load a sourcetable (list of mount points) for users to select from.
RTK solutions will be generated anywhere inside the three VIRTUAL REFERANCE STATION networks:
1) Western Cape (RTKNetWCape): Cape Point, Cape Town, Hermanus, Langebaan, Gordons Bay, Malmesbury and Stellenbosch.
2) Gauteng (RTKNetGauteng): Benoni, Brits, Bronkhorstspruit, Ermelo, Heidelberg, Krugersdorp, Middelburg, Pretoria, Rustenburg, Secunda, Soshanguwe and Vereeniging.
3) Kwa-Zulu Natal (RTKNetKZN): Durban, Greyton, Ixopo, Kokstad, Ladysmith, Mooi River, Pietermaritzburg, Port Shepstone, Scottburg, Stanger and Westville.
TRIGNET'S POST PROCESSING DATA SERVICE:
Trignet data files conform to international standards and specifications and in RINEX 3 format.
All post processing products refer to UTC (South African Standard Time (SAST) - 2 hours)
The "Reference Data Shop" utility on the TrigNet website allows users to generate their own data files by selecting multiple stations, set a preferred epoch rate and output format (Rinex2/Rinex3).
The utility is able to generate data files for a user session on the current day after the hour.
ftp://ftp.trignet.co.za
The TrigNet FTP site contain an extensive data archive of GNSS data files and a folder called Station Information with important information,
including issued coordinate lists for TrigNet stations (Local-Hart94 and ITRF values), mount point names, maps (VRS networks etc), detailed instructions on downloading data files on the FTP site etc.
The daily/hourly RINEX files will be available at 8AM on the following day.
Data files are arranged by Julian days containing 1sec_daily, 30sec_daily and 1sec_Hourly files.
CONTACT DETAILS:
Tel:021 6584364 or switchboard at 021 6584300
E-mail: trignet@dlrrd.gov.za
Date of last update: 12 February 2026
Disclaimer: No guarantee is given that all data will be available at all times.
Equipment and/or communication failures may result in data loss or delay in data retrieval.
That said TrigNet maintain an excellent track record of above 95% availability.
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