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Welcome to the IREX question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.
Although ATIS and AWIS are approved sources for obtaining the actual QNH, they are not the only ones. An operator can obtain approval for his base to give the actual QNH via a company frequency. Also some aerodromes have AWIS available via mobile phone. In the case of mobile phones, you cannot use that method for flight planning because you cannot assume that you will have mobile coverage at the destination, but you can use the phone after you arrive to reduce the MDA by 100ft.