Site Selection

Why Site Selection Matters

The GNSS signal travels from the GNSS satellite around 20,000km away, and arrives in GNSS receivers (Base Stations) with very weak power. The GNSS signal can be easily affected by its surroundings. To maintain a decent quality GNSS network, the GNSS antenna should be installed with an open-sky view without any obstructions. Any negative factors will result in bad GNSS signal quality. Obstructions and multipath interference from over-hanging trees will result in poor GNSS signal quality further. In the backend system, GEODNET monitors the GNSS signal quality and issue GEOD tokens based on the GNSS signal quality.

Always deploy the Base Station with a clear sky view following the 10-degree elevation angle rule and maintain stable power and Internet at the location! We recommend watching this YouTube video to learn how to maximize the performance of your Base Station.

The following pictures show how our existing miners chose their Base Station installation sites.

What is GNSS Signal SNR?

GEODNET adopts the GNSS signal SNR (Signal-to-Noise Ratio) on L1 as an indicator for each tracked GNSS signal quality. Please refer to the article: Measuring GNSS Signal Strength for details about GNSS signal SNR. Typical GNSS L1 SNR for each satellite should range from 37-45 for an acceptable installation. The GNSS signals with SNR below 32 will not be used in GEODNET backend algorithm. The following screenshot is the GNSS SNR signal from one online miner.