Phase modulation of GPS signal on the carrier wave with method BPSK
<a href="//commons.wikimedia.org/w/index.php?title=User:Enemy&amp;action=edit&amp;redlink=1" class="new" title="User:Enemy (page does not exist)">Enemy</a>
2008-05-07
<span class="int-own-work" lang="en">Own work</span>