Agilent Technologies 8590 Series Service Manual page 594

Softkey Descriptions
Softkey Descriptions
FM OFFSET FM Offset
D Note that this function is available for 8593E, 8594E,
ESCRIPTION
8594Q, 8595E, and 8596E spectrum analyzers
equipped with Option 102, AM/FM Speaker and TV
Sync Trigger, only.
Use
FM OFFSET
center-screen with no modulation on the carrier. This
function is useful for adjusting the carrier offset when
FM GAIN
frequency deviation. The
routine calibrates an initial center-screen offset.
Use
FM OFFSET
demodulation circuitry. The CAL OUT signal can be
used in place of an unmodulated carrier signal.
1. Connect the CAL OUT signal to the analyzer input
and make the following instrument settings.
2. Press the following keys.
594
to adjust the horizontal trace for
is set for a modulated signal with a small
CAL FREQ
to do a functional check of the
PRESET
..............................................300 MHz
FREQUENCY
............................................................0 Hz
SPAN
................................................................5 MHz
BW
...............................................−20 dBm
AMPLITUDE
AUX CTRL
DEMOD
(ON)
DEMOD ON OFF
(FM)
DEMOD AM FM
CAL
MORE 1 of 3
MORE 2 of 3
SERVICE DIAG
MORE 1
MORE 2
MORE 3
MORE 4
FM OFFSET
self-calibration
Chapter 13