Which factor is NOT typically associated with the dilution of GPS precision?

High satellite geometry refers to a favorable arrangement of GPS satellites in the sky that maximizes the accuracy of the positioning data received by the GPS receiver. When satellites are well spread out and positioned high in the sky, the receiver is able to triangulate its position with greater precision.

In this context, high satellite geometry actually enhances the precision of GPS signals rather than dilutes or degrades it. The other factors, including atmospheric conditions, solar flares, and geographical obstructions, can all contribute to a decrease in the quality and accuracy of GPS signals. For instance, atmospheric conditions can cause signal delays, solar flares can disrupt satellite signals, and geographical obstructions like tall buildings or mountains can block signals or cause multipath errors. Thus, high satellite geometry is not associated with a dilution of GPS precision, making it the correct answer.