This is a bit string contained in one character representing the least significant two nibbles of the GPS fault status word. Unfortunately, SNMP numbers the bits in the reverse order, so that the enumerated values are backwards from the description contained in the User's Manual for the fault status field returned by the gpsstat command. Each bit indicates a fault when set. Currently defined fault states encoded in this value: Bit 7: DAC controlling the TCXO is near the high or low limit. Bit 6: Time Figure of Merit has been >= TFOM Fault Level for 1 hour. Bit 5: Field Programmable Gate Array (FPGA) did not configure properly. Bit 4: FLASH memory had a write fault. Bit 3: GPS receiver communication fault. Bit 2: GPS reference time fault (fails sanity checks). Bit 1: NTP daemon is not polling the GPS reference clock. Bit 0: GPS antenna or feedline is shorted or open. ATTENTION: This object is deprecated for use in snmpget queries due to a defect in reporting for one specific combination of bits. It remains in this MIB for use with the gpsTrapFaultStatusChange object, where it reports accurately. Use the new gpsFaultNibble0Status and gpsFaultNibble1Status objects for polling via snmpget.