When the signals from two or more buried transceivers are closely aligned, preventing flagging or marking features from functioning.

Occasionally, the flagging or marking feature won’t work on a transceiver because there is signal overlap. Each transceiver transmits a signal with a unique cadence and strength. It becomes more difficult for a transceiver to separate these signals when there are three or four victims, or when the victims are close to each other because their signals are more likely to overlap.

Signal overlap makes it difficult for your beacon to distinguish between two separate burials. Credit: T. Lund