Geeky GPS question (PCI card, possibly off-topic)

In article .com, Ben Hallert wrote:
Followup question, while doing this to get the current data is its own
rewards, I wonder if there would be any implications for
IFR-worthiness? I imagine it depends on what the POH supplement says
about where the data can come from.

I'm guessing it would invalidate the IFR-ness. I certainly would be
hesitant to fly hard IFR behind data I reverse engineered, then generated
myself. But the panel-mount in question is VFR-only anyway.

Tina Marie
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