The description for this says that it has...
The description for this says that it has an arrow and distance meter, but it only has one antenna, is the arrow not actually a direction indicator. If not what are they talking about?
From what I've heard, the arrow does not point to indicate direction like those on a multiple antenna device. Instead, it grows larger to indicate signal strength. When the arrow is at it's longest, the device will be pointing in the direction along the flux line towards (or away from) the transmitting beacon.
This is similar to the arrow on the Ortovox M2 (which I have used)
The arrow gets bigger when you are pointed more directly toward the signal. It is super intuitive you understand what you are looking at directly.