A system for locating a catheter includes a catheter with a locatable tip and a hardware platform. The locatable tip can include a magnetic field generator. The hardware can include a plurality of sensor clusters and control circuitry. Each of the sensor clusters can measure a magnetic field generated by the magnetic field generator. The control circuitry can receive signals from the first, second, and third sensors clusters based on the measured magnetic fields and display a graphical representation for a position of the locatable tip.