Agilent Technologies 8590 Series Service Manual page 603

PRESEL DAC Preselector DAC
D Note that this function is available for 8592L, 8593E,
ESCRIPTION
8595E, and 8596E spectrum analyzers only.
Peaks the YTF preselector by manually adjusting the
YTF fine-tune DAC. The front-panel entry range for the
DAC is from 1 to 3840.
The analyzer firmware adds the entered value to an
8-bit value (0 to 255), yielding a result between 1 and
4095. This result then drives the 12-bit YTF fine-tune
DAC.
Be sure to use either
the
PRESEL DAC
R S
ELATED OFTKEYS
PRESEL DEFAULT
QP DET ON OFF Quasi-Peak Detector On/Off
D Note that this function is available for 8590 E-Series
ESCRIPTION
spectrum analyzers, 8591C cable TV analyzers, and
8594Q QAM analyzers only.
QP DET ON OFF
R S
ELATED OFTKEYS
QP RST ON OFF
QPD OFFSET
QP GAIN ON OFF Quasi-Peak GAIN On/Off
D Note that this function is available for 8590 E-Series
ESCRIPTION
spectrum analyzers, 8591C cable TV analyzers, and
8594Q QAM analyzers only.
QP GAIN ON OFF
(20 dB).
Note that the reference level offset is not changed. The
marker readout and reference level readout must be
divided by 10 to obtain the correct amplitude readout.
Chapter 13
PRESET
to an initial value of 2048.
CAL YTF
turns the quasi-peak detector on or off.
QP GAIN ON OFF
amplifies the video signal ten times
Softkey Descriptions
Softkey Descriptions
or to set
PRESEL DEFAULT
603