Re: Transrapid Maglev

[dbromage@metz.une.edu.au (David Bromage)]

David Cowans (davec@ozemail.com.au) wrote:
>On 7 May 1998 04:00:53 GMT, dbromage@metz.une.edu.au (David Bromage)
>wrote:
>
>>There could be another problem with running at such speeds (550km/h). As
>>such a service would be mainly aimed at the business market, it stands to
>>reason that many would be carrying digital mobile phones, some of which
>>would be used for connecting laptop computers. GSM phones use a doppler
>>system for calculating the distance between the phone and the tower, and
>>adjust the broadcast strength accordingly. At the sort of speed a
>>Transrapid would be doing, it would play havoc with the doppler and could
>>cause the phone to cut out. 
>
>Oh, what a pity....

You can't use a mobile phone in the air because it interferes with
navigation. The point I was trying to make is that the high speed
eliminates one of the selling points of the service to business
travellers.

Cheers
David