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Welcome to the TrigNet Web Application
HERE YOU CAN:
Download high-precition 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 life 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 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) Please refer to the Mount point list provided on the FTP site.
RTK solutions will be generated anywhere inside the three Virtual Reference Station networks:
1) Western Cape: Cape Point, Cape Town, Hermanus, Langebaan, Gordons Bay, Malmesbury and Stellenbosch.
2) Gauteng: Benoni, Brits, Bronkhorstspruit, Ermelo, Heidelberg, Krugersdorp, Middelburg, Pretoria, Rustenburg, Secunda, Soshanguwe and Vereeniging.
3) Kwa-Zulu Natal: 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, 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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