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Service Utilities Menu 1
his menu allows manual control of several sections of the A4 source and A5 receiver
assemblies. his can be a helpful tool in troubleshooting these circuits.
Caution
Most of these utilities
settings
as to the status of any settings, simply cycle the analyzer's line power. hese
settings will then be defaulted to the correct values.
: Goes to the Measurement Calibration Options menu. From this menu
Meas Cal Options
you can activate/deactivate the measurement calibrations and detector calibrations, as well as
access the View Array Master and View Array Interpolate menus (described in detail later).
: Goes to the Analog Bus menu. (See following pages.)
Analog Bus
: FOR FAC ORY USE ONLY.
IF Gain
: Results of several adjustments can viewed by selecting this key. While
Adj Test Results
this information is designed for factory use and can vary considerably from unit to unit, the
date and time that the last adjustment was done or modi ed can be helpful information. his is
updated each time an adjustment is performed. However, this date will be lost if the correction
constants are not stored to EEPROM before power is cycled. Date format is as de ned under
the
menu.
et Clock
,
elect Array
Display Array
the same data. Information displayed is the stored correction for the indicated parameter.
Assuming no adjustments have been performed since power was cycled, this represents the
correction constants stored in EEPROM.
Viewing this data is useful in determining the measured raw performance of the analyzer, as
well as the quality of the adjustment procedure used to store the correction constant data.
Since this data represents the correction constants determined by performing the adjustments,
it is also an indication of how the adjustments were performed. If any of these arrays show
signi cant discontinuities, suspect either a hardware problem in the analyzer, or a hardware
problem in the equipment used to perform the adjustment.
Data displayed is always the full band correction regardless of the current start/stop
frequency settings. Absolute values are generally o set by a signi cant amount, so meaningful
information can only be derived from the relative values. able 5-4 lists all of the analyzer's
thirty-nine correction arrays along with a brief description and typical value ranges.
: Leads to the Service Utilities Menu 2 and Service Utilities Menu 3 which allow
Next Menu
you to manually control the ALC DAC, step attenuator, and LO power.
are for factory use only
can result in improper operation or inaccurate results
: hese two selections are virtually identical and both display
. Modi cation of any values or
. If in doubt
Serv ce Related Menus
5-7
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