The invention relates to a method for locating a source (12) of at least one disrupting wave interfering with a radio navigation signal (14) transmitted by a satellite (16), characterised in that said method includes the following steps: receiving (20) at least one characteristic of a radio navigation signal (22) transmitted by a satellite disrupted by a disrupting source (12) via at least one receiving member (21) having at least one line of sight (Lv) with reduced gain, changing the setting of the line of sight (Lv) and measuring the value (M) of said at least one characteristic received by said at least one receiving member for each setting, and determining the direction (Dir) of the disrupting source (12) relative to said at least one receiving member according to changes in the value measured (M) relative to a reference value (Ref) of the radio navigation signal.
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