The product is a Software Defined GNSS receiver that is capable of exploiting the angle-of-arrival of GNSS signals through software processing alone (Supercorrelation) to provide higher levels of sensitivity, accuracy and integrity. The role of the product is to provide unique multipath mitigation, non-line-of-sight signal rejection, anti-spoofing and spoofer localisation capabilities without requiring encryption, authentication messages or multi-element antenna arrays.