eglnyt
No information I have encountered mentions Primary or Secondary Radar. What is known is that military radar continued to work.
Luftfartsverket are adamant about the solar flares:
LFV utreder onsdagens radarstörning - www.lfv.se
LFVs initiala analys visar en tydlig korrelation mellan tiden för solstormen och störningarna i radarsystemen. Ett antal radarstationer blev överbelastade och behövde startas om.
– Vi kommer nu att utreda konsekvenserna av gårdagens händelse, fortsätter Olle Sundin.
My translation:
The first analysis by LFV shows clearly a link between the time for solar storm and the disturbances in radar systems. A number of radar stations was overloaded and needed to reboot.
- We will now investigate the consequences of yesterday's incident, Olle Sundin continues.