Aviation Altimeters and 5G – the Most Important Questions

Co-existence between different technologies has long been the foundation of sound management of the radio spectrum – ensuring that citizens derive the maximum benefit from this resource. In this updated report, we take a look at some of the most important questions with regards to 5G and aviation altimeters, and how they can be addressed.

Currently, 5G networks in over 53 countries are using spectrum in 3.3-4.2 GHz (the 3.5 GHz range). Roughly 80% of 5G network launches have used this band so far, totalling around 160 networks.. In late 2021 to early 2022, global concern was raised that aircraft altimeters authorised to use the 4.2-4.4 GHz band would be impacted by 5G networks operating in the 3.5 GHz range.

Altimeters are a function of aircraft safety and as such, building appropriate margins into their protection is important.

So, does 5G affect altimeters?

There have been no instances of interference caused by altimeters from 5G and concerns have now calmed. However, the GSMA remains committed, as do our members, to collaborating with civil aviation to ensure that that 5G and aviation continue to safely co-exist. We will continue to work with national governments and international bodies to ensure that citizens around the world reap the maximum benefits of 5G.

Download the report, and find out about some of the most important questions with regards to 5G and aviation altimeters, and how they can be addressed.

Also, learn more about 5G spectrum here.