Low-cost permanent GNSS station

Dual-frequency carrier-phase GNSS receiver for continuous oparation

We provide an affordable yet fully functional GNSS permanent station that delivers accuracies close to those achieved with survey-grade equipment. The device supports three satellite navigation systems: GPS, GLONASS, and Galileo. It records dual-frequency code and phase observations, enabling computations using any technique (including RTK and PPP), also in real time. The acquisition interval is up to 10 Hz. The device is started with a single button and requires no additional operation while running.

The compact receiver is water- and dust-tight (IP67 rating), allowing uninterrupted operation in any environmental conditions. Thanks to its low weight and small dimensions, the external antenna is easy to mount on a variety of objects. The device is mains-powered (230 V, battery, or power bank) and consumes about 10 kWh over a month of continuous operation. In the event of a temporary power loss, the device will resume operation once power is restored. Data transmission takes place via Ethernet or 2.4 GHz Wi-Fi. Internet access is not required for the receiver to function properly, but it enables remote management, continuous monitoring of its status, streaming of observations (RTCM3), or their automatic archiving in the cloud (RINEX files). Without internet access, files are saved to the device’s internal memory (256 GB).

Sieć low-cost we Wrocławiu

A city-scale test network of permanent GNSS stations

The device’s reliability and functionality are confirmed by a demonstrator: a network of GNSS stations deployed across the city. The stations were installed on university grounds and, thanks to the kindness of local residents, on private buildings as well. The first units went live in autumn 2024, and the experience gained during this period allowed us to identify and fix minor software gaps, as well as to assess the quality of the observations and the results they produced.
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The website was created as part of the project "Precise real-time GNSS positioning – an online service," financed by the National Centre for Research and Development under the LIDER XIII programme, agreement no. LIDER13/0075/2022 of 15 March 2023