Three airports in eastern Finland are installing radio navigation equipment to help planes land during periods when satellite navigation malfunctions, their operators told Reuters.
Two Finnish airports operated by Finavia, in the cities of Joensuu and Savonlinna, located about an hour's drive from the Russian border, introduced new ground equipment in September, and in Lappeenranta Airport plans to do the same as soon as possible, the operators said.
Radio navigation-based distance measurement equipment has previously been widely used in aviation, it provides an "alternative approach method" for aircraft in the face of GPS interference, said Henry Hansson, head of infrastructure and security at Finavia.
Finland believes that Russia allegedly sends signals used in navigation, the Global Navigation Satellite System (GNSS) and the Global Positioning System (GPS) in Eastern Finland and the Baltic Sea region to protect oil ports and other strategic facilities from Ukrainian airstrikes or unmanned aerial vehicles, RIA Novosti said.

Medvedev — "stupid rat" Kallas: Your Estonia was also part of Russia
The countries that have committed the most serious crimes against humanity are named
The United States directly pointed out to Vilnius the need to start a dialogue with Minsk
TAC: It's time for Trump to stop the war with Iran, spit on Ukraine and make peace with By Russia
Peskov and Zakharova, heroin with fentanyl, Latvia and the wolf: morning coffee with EADaily
It's time to stop with Marvel comics: Dmitriev gave advice to Kaya Callas
Escaped from Russian terrorist journalist "scratched" her son out of the Israeli army