A position sensor system (1500a; 1500b; 1500c) for determining a position of a sensor device (1520a; 1520b; 1520c) movable along a predefined path relative to a magnetic source (1510a; 1510b; 1510c) or vice versa, the position sensor system comprising: - said magnetic source (1510a; 1510b; 1510c) comprising a first plurality (N1) of magnetic pole pairs arranged along a first track (T1) having a first periodicity or pole distance, and comprising a second plurality (N2) of magnetic pole pairs arranged along a second track having a second periodicity different from the first periodicity, wherein a centreline of the first track (T1) is spaced from a centreline of the second track (T2) by a predefined track distance (dt), and wherein the first magnetic track (T1) is spaced from the second magnetic track (T2) by a non-coded region; - said sensor device (1520a; 1520b; 1520c) being configured for measuring a first set of at least two orthogonal magnetic field components (By1, Bz1; By1, Bx1, Bz1) at a first sensor location (P1), and for measuring a second set of at least two orthogonal magnetic field components (By2, Bz2; By2, Bx2, Bz2) at a second sensor location (P2), wherein the first sensor location (P1) is spaced from the second sensor location (P2) by a predefined sensor distance (ds) smaller than the predefined track distance (dt), in a direction transverse to the tracks (T1, T2); and wherein a projection of one or both of the first and second sensor position (P1, P2) is located vertically above said non-coded region; and wherein the sensor device (1520a; 1520b; 1520c) further comprises a processing unit configured for determining said position based on at least some of the measured signals (By1, Bz1, By2, Bz2). - said magnetic source (1510a; 1510b; 1510c) comprising a first plurality (N1) of magnetic pole pairs arranged along a first track (T1) having a first periodicity or pole distance, and comprising a second plurality (N2) of magnetic pole pairs arranged along a second track having a second periodicity different from the first periodicity, wherein a centreline of the first track (T1) is spaced from a centreline of the second track (T2) by a predefined track distance (dt), and wherein the first magnetic track (T1) is spaced from the second magnetic track (T2) by a non-coded region; - said sensor device (1520a; 1520b; 1520c) being configured for measuring a first set of at least two orthogonal magnetic field components (By1, Bz1; By1, Bx1, Bz1) at a first sensor location (P1), and for measuring a second set of at least two orthogonal magnetic field components (By2, Bz2; By2, Bx2, Bz2) at a second sensor location (P2), wherein the first sensor location (P1) is spaced from the second sensor location (P2) by a predefined sensor distance (ds) smaller than the predefined track distance (dt), in a direction transverse to the tracks (T1, T2); and wherein a projection of one or both of the first and second sensor position (P1, P2) is located vertically above said non-coded region; and wherein the sensor device (1520a; 1520b; 1520c) further comprises a processing unit configured for determining said position based on at least some of the measured signals (By1, Bz1, By2, Bz2). <EOS>