Agilent Technologies 8590 Series Service Manual page 608

Softkey Descriptions
Softkey Descriptions
STORE FLATNESS Store Flatness
D
Avoid pressing the
CAUTION
softkey. All the flatness-correction constants will be lost if
pressed accidentally.
R
ELATED
STP GAIN ZERO Step-Gain Zero
D
SWEEP RAMP Sweep Ramp
D
608
Note that the
ESCRIPTION
only after entering the −2001 Hz passcode prior to
pressing the
After entering new flatness-correction constants, use
STORE FLATNESS
INIT FLT
S
EDIT FLATNESS
OFTKEYS
Disables the two 20-dB step-gain amplifiers on the A12
ESCRIPTION
amplitude control assembly. While disabled, the A12
assembly provides the same gain for all reference-level
settings of −10 dBm and below.
The two amplifiers are disabled as part of the A14 Log
Amplifier adjustment procedure in
PRESET
Displays the RAMP signal from the Sweep-Ramp
ESCRIPTION
Generator on the A7 analog interface assembly. The
RAMP signal has a range of −10 V to +10 V. A
positive-going ramp extending from the lower-left
corner of the screen to the upper-right corner
represents a normal RAMP signal.
Refer to
information.
STORE FLATNESS
and
CAL EDIT FLATNESS
to store them in nonvolatile memory.
softkey when pressing the
to reset the step-gain amplifiers.
Chapter 6 for additional LO troubleshooting
softkey is accessible
softkeys.
STORE FLATNESS
is
INIT FLT
Chapter 2 . Use
Chapter 13