Agilent Technologies E5503A Manual de usuario Pagina 19

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Chapter 1 19
E5500 Phase Noise Measurement System Product Security
70421A, N5501A 6.6 GHz Downconverter Instrument memory
70421A, N5501A 6.6 GHz Downconverter
Instrument memory
Summary of instrument memory
The 70421A and N5501A phase noise downconverters do not store any measurement parameters while
in the power off state.
Memory
Type and
Size
Writable During
Normal Operation?
Data Retained When
Powered Off?
Purpose/
Contents
Data Input
Method
Location in
Instrument and
Remarks
Sanitization
Procedure
Volatile
Memory
DRAM
128 KB
Yes No Stores current
measurement state
for the 70421A and
N5501A
downconverters
User
Modifiable
A6 PS/Controller
board
Cycle power
Non-Volatile
Memory
EEPROM
2 KB
No Yes Stores model #,
serial #, options,
calibration constants
during calibration
Non - User
Modifiable
A6 PS/Controller
board
Not required, no
measurement
data present
Non-Volatile
Memory
EPROM
1 MB
No Yes Firmware for
instrument operation
Non - User
Modifiable
A6 PS/Controller
board
Not required, no
measurement
data present
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