5 of 133Secure Keys ........................................................................................................................114Program secure keys ............................................................................................114Clearing secure call keys ......................................................................................115View secure keys ..................................................................................................116Factory ................................................................................................................................117Restore defaults ....................................................................................................117Erase access levels ..............................................................................................118Erase secure call keys ..........................................................................................119Erase channels .....................................................................................................120Erase preset numbers ...........................................................................................121View data log ........................................................................................................122Programming Functions .............................................................................................................123Programming using the Barrett 2060 supervisory software ..................................123Programming using the Barrett cable P/N BCA90023/BCA204020......................123Programming a channel from the front panel........................................................124Transmit and receive frequencies .............................................................124Operating mode .........................................................................................125Selcall format .............................................................................................125Antenna socket selection...........................................................................125Deleting a channel from the front panel ................................................................127Installing the Barrett 2060 Interconnect ....................................................................................128Connectors .........................................................................................................................130Power connector ...................................................................................................130RS232 connector ..................................................................................................130BUS connector ......................................................................................................131Transceiver connector ..........................................................................................132Auxiliary connector ................................................................................................133