Hi David.
I live in the southern part of the state of Florida, and from my observations, it seems AO-27 turns on when it's near the center of the USA. From looking at the footprint, that puts me in range for perhaps 5 minutes, and most of Mexico for about the same amount of time. This of course is when the bird is usable for me.
You can check the official AO-27 homepage, where there is a link for the status of the satellite for a 24 hour period here: http://www.ao27.org/AO27/index.shtml
73 de W4AS Sebastian
On Apr 26, 2009, at 9:58 PM, David Giles wrote:
Hello to all in the northern hemisphere.
It is well known that AO-27 is only activated for limited periods in the northern hemisphere. But what is the furtherest south that it can be heard? Also, is it only activated near North America or is it turned on every orbit?
73 de David VK5DG