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The attenuator switch driver model number ( P 11713A) and address (28).
the attenuator switch driver selection and address. At this time, the only two choices
are the HP 11713A and `NONE'. If `NONE' is selected, the program will prompt you to
manually set the external 10 dB step attenuator each time it needs to be changed. Since
this is inconvenient, the use of an HP 11713A with a HP 8496G model attenuator is highly
recommended.
The frequency counter model number ( P 5342A) and address (02).
model number and its address are next. If `NONE' is selected, the program will use the
spectrum analyzer to measure frequency accuracy.
The voltmeter model number ( P 3456A) and address (22).
address are next, they are not currently used by this program.
The printer address (01).
all HP-IB printers should work equally well. For the DOS version, entering any valid number
except 10 will direct the output to the attached HP-IB printer. Selecting an address of 10 will
re-direct the output to the de ned Windows default printer. ypically this will be a printer
attached to the computer's parallel port or a networked printer.
The program directory and the mass storage unit speci er (the current MSI device).
program directory and Mass Storage Unit Speci er (MSUS) are next. hese should point to the
location of the CAL871XC program and all of its required data les (all the les contained on
the disk). If you are running this program from a
oppy 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. / ES S/ANALYZER/NE WORK/8713C). he entire length must be less than 80
characters (preferably less than 60 for easier viewing). he 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 rst run, the default will be the
current MSI device.
The data directory and MSUS.
should point to the location where the results of each DU will be stored (if applicable). he
data directory and MSUS are otherwise similar to the program directory, including the defaults.
The sensor's, external 10 dB step attenuator's, and xed attenuator's (pad's) serial
numbers (xxxx).
Six of the next seven entries will contain the LAS FOUR digits of the serial
numbers for the power meter sensors, the step attenuator, and the 20 dB attenuators. his
allows the program to load the proper correction values for each device.
he disk contains les that match these default serial numbers (xxxx), but the correction data
contained within these les is invalid (e.g. 100 percent for all sensor cal factors). his allows
the program to be run for experimental or training purposes only. As a precaution, a warning
message will be displayed if a default le is loaded.
The step attenuator's 40 dB card selection (3).
section. he HP 8496G step attenuator contains one 10 dB section, one 20 dB section, and two
40 dB sections. his step speci es which of the two 40 dB attenuator card sections of the
HP 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. he 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 identi cation, section 3 of the attenuator is
the section that is engaged when button #3 or #7 of the HP 11713A is lit.
his entry is not applicable if you are using a manual attenuator.
he printer address is next. No model number is needed here;
he next two entries are the data directory and MSUS. hese
While the voltmeter and
One of the next selections is the 40 dB step
Next is
he frequency counter
he
Performance T ests
1-17
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