1 or 2 HF required in Gander/Shanwick OCA

[stevegg5]

I'm trying to find anything that tells me that 2 HF are required on the NATS.

Everything I read say comms for selected route and a SATCOM can be used as backup.
But nothing specifies 2 LR Comms required which leads me to believe 1 HF would be OK.

Any one point me to any official document. I've been through the AIPs.

[davidjh]

Try NAT MNPS manual. I seem to recall that one (1) HF was all that was required, but that could have changed.

[Willit Run]

and that would be page 11 !

You need to be able to transmit and receive on two appropriate frequencies, but that can be with the same radio. Your MEL might say differently and the relief maybe a SATcom, maybe not.