Translations:KAVAN V20 - Quickstart guide/38/en

A "Range Check" voice alert will sound every few seconds to confirm that you are in range check mode. A pop-up window on the display will show the receiver UID and the VFR % and RSSI values to evaluate the reception quality. Under ideal conditions, when the transmitter and receiver are both 1 m above the ground, the Alarm should appear at a distance of approximately 30 m from each other.