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I'm sorry I don't really understand the question. Dip is generally
corrected by weights. So take a northern compass south and card tilts and develops a dip error. The dip in the south is gernerally in the opposite direction to that in the north if you like to think about it that way. Cheers MC Simple Simon wrote: This magnet also has a north pole that aligns itself opposite of the Earth's poles. Does a southern hemisphere compass, in order to minimize card dip, have the magnet placed the opposite direction on the south side of the card? S.Simon "The_navigator©" wrote in message ... You are correct. The dip would throw the card off and might be a problem. In fact some tasco binocs with built in compass sold here did not work for the reason! No compass seeks the pole(s). They just align themselves with local field. If you look at a large scale chart with variation the lines can often wander a great deal (let alone the local anomalies). Cheers MC Simple Simon wrote: Since the north magnetic pole is not resting upon the surface of the Earth compasses made for Northern Hemisphere use are usually weighted on the card on the southern side to keep the card more level as the north side of the card seeks out the north pole buried well inside the Earth. Are the compasses you Australian and New Zealand ******s use weighted any differently? What if you were going to sail to Canada or something. Would your southern compass work in the Northern hemisphere? Also does you compass really seek the North magnetic pole or is it made backwards to seek the south magnetic pole. Enquiring minds want to know . . . S.Simon |
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