The Marco Polo tracking system operates like a “personal radar”. First, the handheld locator transmits a signal to the tag transceiver in your drone. Then, the transceiver sends a signal back that allows the locator to determine the bearing from your position to the lost drone. Finally, the locator processes the bearing and the received signal strength level once every 5 seconds and puts the results on the LCD display. The bearing indication becomes more and more sensitive as you approach your drone. And together with frequent updates, Marco Polo allows you to home in on your drone’s exact location, to within inches.