Tue Feb 11, 2020 8:35 pm #1746054
From that doc we have the following
6.1. Schedule 5 of reference E (ANO) requires the carriage of radio navigation equipment in notified airspace. This pressure-altitude reporting transponder must be capable of operating in Modes A and C, and have the capability and functionality prescribed for Mode S
6.2. The requirements for transponders within a TMZ are detailed in
reference B (SERA) as follows
a) All flights operating in airspace designated by the competent authority as a
TMZ shall carry and operate Secondary Surveillance Radar (SSR)
transponders capable of operating on Modes A and C or on Mode S,
Looks to me that ANO requires mode S but SERA doesn't - so which is it?
I know I'm paranoid - that's why they're watching me!