Agilent Technologies 85032B/E 50 Specifiche Pagina 255

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8712ET/ES and 8714ET/ES Correction Constants and Firmware
RF Network Analyzers Storing and Recalling Correction Constants (CC)
Service Guide 8-3
analyzer should be kept in a safe place and write-protected so that it cannot be
accidentally erased. Generally, this disk will never be needed unless the CPU assembly
needs to be replaced.
New correction constants can be generated by performing the built-in adjustment routines.
(Refer to Chapter 2, “Adjustments,for detailed information.) Results from these
adjustments are always stored in volatile RAM. The user can then transfer this data to
either the internal floppy disk or the permanent EPROM.
The following correction constants procedures can be performed:
“Storing Correction Constants to Disk” on page 8-3 (used to make a backup copy)
“Loading Correction Constants from Disk” on page 8-3 (this places them into volatile
RAM)
“Storing Correction Constants to EPROM” on page 8-4 (permanently overwrites
existing CCs with what is currently in RAM)
“Installing Correction Constants from Disk” on page 8-4 (a combination of loading CCs
from disk and storing to EPROM)
Storing Correction Constants to Disk
This will copy the current contents of the analyzer's CC data that is contained in RAM to
the internal disk drive. The instrument writes (or overwrites) a file named "CC_DATX,"
where X is the last digit of the analyzer's model number. This is generally used to make a
backup copy and may be very useful if the analyzer ever needs servicing.
1. Insert a formatted disk into the internal disk drive. (If needed, format the disk with the
file utilities menu under ).
CAUTION Do not format the correction constants disk shipped with the analyzer unless
you are certain that the data on it is no longer needed.
2. Press .
Loading Correction Constants from Disk
This will load a copy of the CC data that is on disk into temporary RAM. Once in RAM, the
analyzer will continue to use that data until turned off. A warning message will be
displayed if some adjustments have not been done or if the serial number contained in the
file does not match the instrument serial number. To permanently save this data to
EPROM, you must also subsequently select .
1. Insert the proper correction constants disk into the internal disk drive.
2. Press .
SAVE RECALL
SYSTEM OPTIONS
Service
Update Corr Const
Store CC To Disk
Store CC to EPROM
SYSTEM OPTIONS
Service
Update Corr Const
Load CC From Disk
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