A systematic rectangular search pattern for isolating the signal of an additional buried transceiver in a multiple burial rescue situation.
There are two common techniques for handling signal overlap in a multiple burial scenario. Both employ a systematic search pattern that is used to get closer to the second burial and identify when the transceiver switches signals to the second burial. In the micro search strip method, the rescuer searches in 3-meter search strips away from the first burial, paying close attention to any unexpected change in the distance reading, which should be showing the distance back to the first burial. This method can be more efficient in steep terrain than the 3-circle method because you can move systematically downhill. If this method is ineffective, you can turn the first beacon off from transmitting once it is recovered from below the debris.