CAP670 also has some interesting info on Annex 11:
Note 1: The ICAO Standard for “Automatic recording of surveillance
data”, set out in paragraph 6.4.1 of Chapter 6 in Annex 11 “Air
Traffic Services” (Thirteenth Edition, Amendment 43), requires
the automatic recording of “surveillance data from primary and
secondary radar equipment or other systems (e.g. ADS-B, ADS-C)
used as
an aid to air traffic services”.
Note 2: Surveillance data used “
as an aid to air traffic services” shall
mean all surveillance data
displayed to the controllers either as part
of a surveillance display or safety nets for which visual indications
will be provided to controllers
on screen, derived from surveillance
data.
What ICAO means is that an ATC service should record surveillance data (primary radar, secondary radar) and radio transmissions such that it can help in incident and accident investigtion.
ICAO does provide some guidance, however it is by no means prescriptive .
I am 100% sure DSB is writing nonsense in the Appendix.
The text in ICAO Annex 11 paragraph 6.4.9 refers to automatic recording.
The Dutch Safety Board position is that this includes the recording of all data, including raw data.
ICAO was consulted on this matter and ICAO concurs on the Dutch Safety Board position on this matter.