Max depth problem...

[deadfish]

I downloaded a trial version of MacDive to see if it will do everything I need before I switch. One observed oddity: I have several dives where the "Max Depth" reported is different than the actual maximum depth that I can see if I mouse over the deepest point on the graph. For example, I have a dive where the deepest point on the graph is 34.30 feet, and the max depth in the table is reported as 32.81. I also have a dive where the max depth reported is greater than the deepest point in the graph. The "Max Depth" reported in the computer itself seems to match the graph data.

I am using a Shearwater Petrel.

I can imagine a case where the reported max depth would be greater than the deepest depth in the graph if the Petrel records the deepest instantaneous value, but that value just isn't captured in the graph because of sampling rate. But I can't imagine why I have a dive where there are actual sampled data points that are deeper than the max depth that MacDive is reporting.

Any ideas what is going on?

Jon

[nick]

The first part is correct - on most devices the max depth is recorded independently so you may not see a sample at that actual depth. As for being shallower, that's odd.

The data is just being read directly off the Petrel from memory. I could add a check to ensure that if a sample is deeper than it is fixed. Ideally I would need your data to verify the issue, so please drop me an email for instructions.

[swerdna]

Same boat here, Shearwater Predator. Let me know if you need additional data. Thanks!

[nick]

The predator is a different issue, it is resolved for the next update.

[swerdna]

Great, thanks for the quick reply.