Another SSR code to remember when flying in EASA-land. 🙃  Also note: it replaces the 7 minute rule if you lose COMs while under radar service aswell, increasing it to 20 mins,  regardless radar services or not.

"New air traffic procedures for lost communications and emergency descent took effect across EU airspace on May 1 under updates to the Standardised European Rules of the Air (SERA).

These revisions, which apply in all EU member states regardless of national AIP publication status, include a second transponder code for IFR operations.

“The most notable difference is the introduction of a new SSR code 7601.”

The revised rules require IFR aircraft that lose communications but elect to continue flying in visual meteorological conditions to squawk 7601, a new SSR code introduced in SERA 14083.

Aircraft that continue on an IFR clearance without diverting in VMC must still use 7600, the long-established lost comms code"

 

 

Easier than the one on China:

back to DEP airport: change between 7600 and 7601 in 30sec. interval twice and leave it in 7600

to TO ALTN: change between 7600 and 7602....as above.