UKC

Altimeter basics

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 tingle 30 Oct 2016
I have Just purchased a second hand altimeter, I have never had one before so I am completely new to how they work, but I noticed that it becomes inaccurate after a day or so, is the done thing to check your map and set your altitude manually at the start of the day ?
 IPPurewater 30 Oct 2016
In reply to tingle:

I'm guessing you have an aneroid altimeter, which works on air pressure. Set it at the start of each day, when you are at a known altitude. As the air pressure can vary as fronts come through, it is advisable to check and reset it when you reach a subsequent point of known height.
OP tingle 30 Oct 2016
In reply to IPPurewater:
That's what I suspected thanks very much
Post edited at 17:59
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