Spectrum Masterâ„¢ User Guide : Secure-Environment Workplace : Spectrum Master Memory Types
 
Spectrum Master Memory Types
The instrument contains non-volatile disk-on-a-chip memory, EEPROM, and volatile DRAM memory. The instrument does not have a hard disk drive or any other type of volatile or non-volatile memory.
Disk-On-A-Chip (DOC)
DOC is used for storage of instrument firmware, factory calibration information, user measurements, setups, and .jpg screen images. User information stored on the DOC is erased by the master reset process described below.
EEPROM
This memory stores the model number, serial number, and calibration data for the instrument. Also stored here are the user-set operating parameters such as frequency range. During the master reset process, all operating parameters stored in the EEPROM are set to standard factory default values.
RAM Memory
This is volatile memory used to store parameters needed for the normal operation of the instrument along with current measurements. This memory is reset whenever the instrument is restarted.
External USB Flash Drive (not included with the instrument)
This memory may be selected as the destination for saved measurements and setups for the instrument. The user can also copy the contents of the internal disk-on-chip memory to the external flash memory for storage or data transfer. The external Flash USB can be reformatted or sanitized using software on a PC.
Refer to File Management for additional information on saving and copying files to the USB flash drive.