Operation
Model 8642A/B
DETAILED OPERATING INSTRUCTIONS
The Detailed Operating Instructions are organized into major categories that are decribed
on the previous page under the "Introduction to Section III". Each operating instruction
begins on a right facing page for easy accessibility. This . \eans that sometimes you will see
a blank page before the beginning of an operating instruction. Each of the Detailed
Operating Instructions provides specific, function-related information. We have arranged
each of these instructions in the following format:
Description
The information given under "Description" provides an overall description of the
function(s) to be discussed in that particular operating instruction. The Signal Generator's
front-panel functions are divided into three types: Key Functions, Shift Key Functions,
and Special Functions.
Key Functions. Key functions are labeled directly on the key that accesses the function.
You can access a key function by pressing the key directly. In these instructions, we show
the key function's label in capital letters surrounded by what resembles a key shape (for
example, fTFlEQ~1 or [ AMPTD ) ).
Shift Key Functions. Shift key functions are labeled in blue above the key that accesses
the function (for example, REF SET or REL ZERO). You can access a shift key function
by first pressing the blue 1 SHIFT"") key (which causes the display to show "SHIFT") and
then the key under the blue label. In these instructions, we show the shift key function's
blue label in capital letters (for example, REF SET) followed by the actual key you need to
press to access that function. That is, we would show:
REF SET (( SHIFT I I FREQ
1
).
Special Functions. You can turn on a special function by pressing SPCL (
1
SHIFT 1 1 - i ),
then by keying in the code number of the desired special function. (After you select a
special function, its code and description are displayed, ','ou can cl^ar this message from
the display by pressing the
1
SHIFT ) key twice.)
Procedures
The "Procedures" provide examples to show you how to operate the function (or functions)
explained in the "Description". Before each example, we instruct you to select Instrument
Preset to put the Signal Generator in a known state so that your instrument will display
identical settings as in the display portion of our examples.
HP-IB Codes
All HP-IB codes relevant to that operating instruction are listed.
Comments
The "Comments" add extra information about the function(s) that might be valuable.
Related Special Functions
The "Related Special Functions" list and describe some special functions that might apply
to the mam function.
Related Operating Instructions
This listing refers you anywhere else in the Detailed Operating Instructions that will
provide related information about the topic or topics you are reading about.
3-2
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