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Old 24th Jan 2013, 10:06
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Contacttower
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Join Date: May 2007
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GPS affected by snow?

I'm sure I heard on the news recently with all the snow that drivers were finding their sat navs stopped working when it got very heavy.

I was very surprised to here this - I had always assumed that the frequency that GPS operates on, aprox 1200MHz and 1575MHz if I recall, should not be affected by/reflect off precipitation of any sort. Is this the case though? Could really large snow flakes in the air disturb the signal?

I wondered if perhaps it was physical snow accumulations on the car itself that were causing the signal to be lost.

Last edited by Contacttower; 24th Jan 2013 at 10:07.
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