Frequency hopping binary offset carrier (FH-BOC) signals use a wider band than other BOC signals, resulting in high signaltracking accuracy and low ambiguity for their correlation functions. Even with these improved metrics, ambiguities remain in correlationfunctions and could lead to false locking during code tracking. The FH-BOC signal is obtained from a time division multiple combiningmultiple BOC signals with different frequencies through a process called frequency hopping. This report outlines the common pulsecomponent between several sub-carriers of the FH-BOC signal. This pulse is correlated with the received signal and combined to design anunambiguous correlation function for the FH-BOC signal. Compared to the FH-BOC signal’s correlation function, the designedunambiguous correlation function is less affected by multipaths because more power is concentrated at the main peak.