Speakerguy
Active Member
Hi,
Does anyone know of a method to accurately determine altitude up to about 1/2 mile? I've seen GPS modules that measure altitude but they are only accurate to +/-35m, which is problematic when trying to land something This would be on an RC plane for an auto-pilot like device.
ETA: Actually I could use two methods, one for high altitude stuff and the other for landing (where the accuracy is super important but it doesn't need to be good to a 1/2 mile).
Does anyone know of a method to accurately determine altitude up to about 1/2 mile? I've seen GPS modules that measure altitude but they are only accurate to +/-35m, which is problematic when trying to land something This would be on an RC plane for an auto-pilot like device.
ETA: Actually I could use two methods, one for high altitude stuff and the other for landing (where the accuracy is super important but it doesn't need to be good to a 1/2 mile).
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