For some reason, the 1800Z feed appears to have missed the transmission in the archive, as the file is only 24 minutes long.
That's really odd.
I tried listening to the archive, but (in the webplayer that the archive opens in), the recording always stops at 7:03, and no matter how hard I try, I can't get anything between there and about 7:16. Are the missing minutes contained in that gap? And apparently missing in there is whatever calls involved avoiding the a collision.
It's obvious as well that it's a different female voice on local after the gap...