[TowerTalk] How accurate are iPhone Compass apps?

[W2RU - Bud Hippisley]

Very interesting, Mike....the testing against known headings that I did on MY iPhone was only AFTER updating it to iOS5 (which was a horrible mistake, but that's a story for a different reflector).

Bud, W2RU
 
On Jan 4, 2012, at 3:51 PM, Mike wrote:

> My iPhone4 iOS5 comes up 90 degrees off about half the time. Should be pointing N, 
> but is pointing E. It never did that with a previous OS.
> 73, Mike NF4L