In the "ADS-B Out" equipped airplane I fly, traffic information is provided on the moving map GPS display. What traffic am I actually seeing? Is it only other ADS-B equipped aircraft, or all primary/secondary radar returns? Why am I seeing any traffic at all, I thought traffic information was only available in an "ADS-B In" equipped airplane? Also, why do I only get traffic information when I remain in the vicinity of Class B airspace (in my case, SoCal approach control airspace)? When I venture further afield traffic information is no longer available on the moving map GPS. Thanks in advance for any clarification you could provide.
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