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1-26
Special krnction Operation
2.
Now press the SPCL key alone. Pressing the
SPCL key without entering
a number causes the HP 8902A to display which special functions (1-10)
have been set.
If
you previously entered the 7.2 special function, a 2 should
now appear in the seventh display digit position. The display shows a zero
in each of the other display positions to indicate that these special functions
are still set to their automatic (default) operating condition. Use this capa-
bility to review or verify the special function
settings
that you have selected.
entering a number causes the instrument to display the special function
setting (1-10) actually being used. (Note that a 2 still appears in the
seventh display digit position.) The other digits represent the settings
automatically selected for the measurement mode the HP 8902A is
currently in.
Use
this capability when you are interested
in
knowing what
settings the instrument is currently using to make its measurements.
and return to the previously selected measurement mode.
3. Press the SPCL key again. Pressing the SPCL key twice without
4.
Press the
CLEAR
key to exit the special function display
The Speck/
FUnCfiOn
/f7fOfmafiOf7
PU//-OUf
Card
The Special Function Information pull-out card enables an experienced
user to quickly access special function operating information. A block
diagram on the card shows which portions of the circuitry are controlled
by special functions 1-10. A table of operating conditions for each
special function (1-10) is provided below the block diagram. Special
functions 11-39 are listed above the block diagram along with a brief
description of their function. (Refer to the measurement reference
chapters (2 through 4) and the applications chapter (5) to find out how
special functions can help
you
expand your measurement capabilities.)
Errors, Dashes
and Other Help
The HP 8902A Measuring Receiver keeps
you
informed of its operating
status by placing error and dash codes in its display. The Operating
Information pull-out card enables you to quickly access a brief description
of each code. The measurement reference chapters (2 through 4)
in this guide provide a listing of the errors and problem conditions
for each of the measurement modes. Each code listing includes a
description and recommended recovery action. (Refer to reference
chapters (2 through 4) for help in solving your measurement problems.)
Congratu/ations
You are now familiar with each of the basic measurement capabilities of
the HP 8902A. From now on, you can rely on the HP 8902A for making
your frequency, modulation, audio, power, and level measurements.
The rest of this guide will enable you to expand and extend the
HP 8902A's measurement capabilities even further. If the scope of
your applications goes beyond the contents of this guide, refer to
the HP 8902A Operating and Calibration Manual for further details.
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Chapters
