Division (a) Aeroplanes operated under IFR or at night, or when required by the applicable airspace requirements, shall be equipped with radio communication equipment that, under normal radio propagating conditions, shall be capable of:F1

conducting two-way communication for aerodrome control purposes;

receiving meteorological information at any time during flight;

conducting two-way communication at any time during flight with those aeronautical stations and on those frequencies prescribed by the appropriate authority; and

providing for communication on the aeronautical emergency frequency 121,5 MHz.