Reference Level Calibration; Figure 1-9 . Peaked Signal To Reference Level - Agilent Technologies 8560E User Manual

Reference Level Calibration

Recalibrating the reference level is usually necessary only when the
ambient temperature changes more than 10 degrees Celsius. Because
the spectrum analyzer continually monitors and reduces any IF errors,
executing the reference-level calibration is seldom necessary.
The reference-level calibration function
analyzer internal gain to be adjusted. When the calibrator signal is
connected to the input, selecting a reference level equal to the
calibrator amplitude will display the signal at top-screen.
1. Turn the markers off by pressing
2. Press
3. Press
4. To calibrate the spectrum analyzer, use the knob on the front panel
5. To store the value, press the
Figure 1-9 Peaked Signal to Reference Level
Chapter 1
. This accesses a menu of calibration routines. The fifth
CAL
function on this new list, labeled
calibrate the amplitude of the instrument.
to activate the function.
REF LVL ADJ
and adjust the peak of the signal to the reference level as shown in
Figure 1-9. Note the number that appears in the active function
block (number 0 in this example). This number ranges from −528 to
+528 (−33 to +33 in earlier instruments). It is a relative value
indicating how much amplitude correction was required to calibrate
the spectrum analyzer. The number is usually around 0.
If the amplitude is at either end of the range, or if it cannot be
adjusted to a value within this range, consult the calibration guide.
or storing a value using the data keys, the entry must be terminated
with the key, located in the lower-right corner of the analyzer.
ENTER
Reference Level Calibration
REF LVL ADJ
, then
MKR MARKERS OFF
, allows you to
REF LVL ADJ
softkey. When entering
STORE REF LVL
Quick Start Guide
allows the
.
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