SKPOS®

Slovak real-time
positioning service

News from SKPOS – 1st half of 2024


Launch of 3rd generation BeiDou (BeiDou-3) corrections

On 13 May 2024, we started the distribution of 3rd generation BeiDou (BeiDou-3) real-time corrections in the network solution. It brings you up to 7 more satellites on average, lower PDOP values and more stable fixed solution in situations where the sky is partially obscured. BeiDou-3 corrections are available at following mountpoints:

For more information about BeiDou-3 system, please refer to the Manual section.

Comparison of the number of satellites during 24-hour observation
Comparison of the number of satellites during 24-hour observation

Change of GNSS receivers at SKPOS stations

In April and May, old Trimble NETR9 receivers in central and eastern Slovakia were replaced with new Trimble Alloy receivers supporting BeiDou-3.

Trimble Alloy receivers
Trimble Alloy receivers

Increased solar activity

We are now in the 25th cycle of solar activity, which was predicted to peak in 2025. However, as you can see in the graph, the situation is even worse, because the values of the expected maximum have already been higher this year. Increased solar activity can cause problems with your measurements, especially during the noon hours. During these hours, we recommend monitoring the status of the ionosphere, which is available after logging SKPOS Online Datashop. You can find answers to frequently asked questions about that problem for example, on the solar cycle page.

Solar activity (blue) and predicted values (red).
Solar activity (blue) and predicted values (red). Source: https://www.swpc.noaa.gov/products/solar-cycle-progression

SKPOS Control Software upgrade

We have upgraded the SKPOS Control software TPP to version 5.1.1. The new version includes a number of improvements and bug fixes in post-processing data generation, in the SKPOS Online Postprocessing application and it supports new receiver types.


Antenna replacement at SKPB station

At the SKPB reference station (Považská Bystrica), an antenna was replaced with a new Trimble Zephyr 3 geodetic.

Replaced antenna at SKPB station
Replaced antenna at SKPB station

Receiver firmware upgrade

All SKPOS receivers have undergone a firmware upgrade to the latest version. The biggest benefit of the latest firmware version is a technology called “Trimble IonoGuard”, which suppresses increased ionospheric activity.


Record number of simultaneous connections

During the second week of April, we set a new record for the number of simultaneous connections, with 772 in one second. This was 82 more connections than the last year´s record.

Number of connections on 11 April 2024
Number of connections on 11 April 2024

Presentation of the activities of the SKPOS National Service Center

At the GNSS seminar in Brno we presented the activities of the SKPOS National Service Centre. The Presentation is available on the SKPOS website.

Presentation about activities of the SKPOS National Service Center
Presentation about activities of the SKPOS National Service Center