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Forum: London Transport November 22nd 06, 09:08 PM
Replies: 10
Views: 1,740
Posted By [email protected]
Wind turbines(?) Brighton Line

There is an ever increasing requirement for trackside devices such as
lubricator monitors, rail temperature monitoring points, weather
stations and so on that have very modest power requirements and...
Forum: London Transport September 11th 06, 04:36 PM
Replies: 5
Views: 1,323
Posted By [email protected]
Modern trains and electronic equipment?

So consider the situation, you are wishing to receive GPS which is a
very weak and very high frequency signal at about 1.2 to 1.5GHz with
corresponding wavelengths at 23 to 20cm whilst sitting in...
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