Search device for locating a transmitter, in particular an avalanche-victim search device

A method for localizing a transmitter comprising:

• positioning a search device at a plurality of search angles;
• receiving transmitter signals from a transmitter at a momentary search direction using an antenna operatively connected to the search device;
• receiving magnetic field signal representative of the earth's magnetic field;
• generating processed signals based on the transmitter signals relative to the magnetic field signals, the processed signals including at least one angle signal representing a reception field strength assigned to a search angle;
• and
• generating an output signal representative of the processed signals and displaying the output signal to a user.

Method of localizing a transmitter, in particular the transmitter of an avalanche victim,

• wherein to scan a search region a search device is swiveled by a user through a range of search angles that covers the search region;
• transmitter signals sent out by the transmitter are received from momentary search directions by a search antenna of the search device;
• processed signals are generated from the transmitter signals;
• and
• result signals that represent the processed signals are output to the user;
• wherein sensor signals related to the earth's magnetic field are displayed to the users as processed signals by way of result signals, and to each search direction there is assigned a fixed search angle (φ) relative to the earth's magnetic field (μ);
• wherein angle signals, each of which indicates a reception field strength (σ) at a search angle(φ), are generated from the transmitter signals (r) and the associations of search direction and angle;
• and
• wherein a transmitter search angle, at which the transmitter is situated, is calculated with reference to the angle signals and a result signal is sent out that represents the transmitter search angle.