Agilent Technologies 3847A, Operation And Service Manual

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1-4
Operation
Quick Overview
4. Increment Set Keys
When you press a FUNCTION key, that function becomes the active function. Press INCR
SET to view or change the increment value for the active function. Press
⇑
or
⇓
at any time
to change the active function setting by the increment value. (If Option 1EP is present and
the signal generator is in the ENCODER mode, these keys have alternate functions.)
If Option 1EP is present and the signal generator is in the ENCODER mode, the
INCR SET
key functions as a START/STOP key. This key starts or stops any pager encoding activity.
In addition, in this mode, the
⇑
and
⇓
function as PREV and NEXT keys. These keys let
you move the blinking cursor between each parameter when you are entering the pager
encoding settings.
5. Knobs
The knobs are always active when the instrument is in local (front panel) control. Turn
them to increase or decrease the frequency or the amplitude of the RF output. Press
⇐
or
⇒
, next to each knob, to adjust the knobs resolution.
Press
REF SET
, next to each knob, to set the displayed value as the reference value and
turn on the reference mode. Press
REF ON/OFF
to turn on and off the reference mode
without changing the reference value. When the reference mode is on, the displayed value
indicates the offset between the reference value and the RF output signal.
If Option 1EP is present and the signal generator is in the ENCODER mode, the
AMPLITUDE/ENCODER knob is used to enter a setting for a pager encoding parameter.
6. MEMORY
memory registers allow you to save instrument setups and recall them whenever you wish.
Press
SAV
and enter a two-digit register number to save the instrument’s current settings.
To recall the settings, press
REG
and enter the register number. The arrow keys allow you
to recall registers in numerical sequence. You can arrange your registers in up to ten
different sequences.
The number of the currently selected sequence and the last register selected are always
displayed in the lower-left corner of the display to help you keep track of where you are in
your testing process. (If Option 1EP is present, the sequence and register are not displayed
on any pager encoding menu.) The memory register examples provided in Chapter 1a,
“Operation Examples,” show you how to create a sequence and how to delete or add
registers in your sequence.