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8712ET/ES and 8714ET/ES Performance Checks

RF Network Analyzers Performance Test Software

Service Guide 1-17

The printer address (01). The printer address is next. No model number is needed

here; all GPIB printers should work equally well. For the DOS version, entering any valid

number except 10 will direct the output to the attached GPIB printer. Selecting an address

of 10 will redirect the output to the deﬁned Windows default printer. Typically this will be

a printer attached to the computer's parallel port or a networked printer. On the DOS

version (HP BASIC for Windows), the default address is set to 10.

The program directory and the mass storage unit speciﬁer (the current MSI

device).

The program directory and Mass Storage Unit Speciﬁer (MSUS) are next. These

should point to the location of the CAL871XE program and all of its required data ﬁles (all

the ﬁles contained on the disk). If you are running this program from a ﬂoppy disk, the

program directory entry should be blank. If using an HFS or SRM system, the entire

directory name should be entered here (e.g. /TESTS/ANALYZER/NETWORK/8712E). The

entire length must be less than 80 characters (preferably less than 60 for easier viewing).

The MSUS, which indicates the physical address of the disk drive, also has an 80-character

limit. For the DOS version, this is typically just the drive letter (for example, C:). When the

program is ﬁrst run, the default will be the current MSI device.

The data directory and MSUS. The next two entries are the data directory and

MSUS. These should point to the location where the results of each DUT will be stored (if

applicable). The data directory and MSUS are otherwise similar to the program directory,

including the defaults.

The sensor's, external 110 dB step attenuator's, and ﬁxed attenuator's (pad's)

serial numbers (xxxx).

Six of the next seven entries will contain the last four digits of

the serial numbers for the power meter sensors, the step attenuator, and the 20 dB

attenuators. This allows the program to load the proper correction values for each device.

The disk contains ﬁles that match these default serial numbers (xxxx), but the correction

data contained within these ﬁles is invalid (e.g. 100 percent for all sensor cal factors). This

allows the program to be run for experimental or training purposes only. As a precaution, a

warning message will be displayed if a default ﬁle is loaded.

The step attenuator's 40 dB card selection (3). This selection is choice of the 40 dB

step section. The 8496G step attenuator contains one 10 dB section, one 20 dB section, and

two 40 dB sections. This selection speciﬁes which of the two 40 dB attenuator card sections

of the 8496G step attenuator is to be used; section 3 or 4. Enter the value (3 or 4) for which

you have calibration data.

For example, when the step attenuator was calibrated, one of the two 40 dB sections was

selected for the 40, 50, 60, and 70 dB attenuation value. The data corresponding to the

selected 40 dB section must be input to ensure valid measurement data when using

attenuations of 40 dB or greater. For purposes of identiﬁcation, section 3 of the attenuator

is the section that is engaged when button #3 or #7 of the 11713A is lit.

This entry is not applicable if you are using a manual attenuator.

The beeper (on). The last selection will suppress or enable the beeper, as desired.

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