User`s guide
SQUELCH
Option 102, 103, or 301 only.
adjusts the squelch level. The squelch level mutes weak signals and passes
strong signals. The squelch level affects the audio output only. If the internal
speaker is on, audio signals are not output unless the signal strength exceeds
the squelch threshold. The squelch level does not affect the rear-panel AUX
VIDEO OUT signal. Squelch level is indicated on-screen by the
unitless
numbers 0 to 100, with 0 being minimum squelch threshold (all signals are
passed), and 100 being maximum squelch threshold (no signals are passed).
The default squelch value is 0.
Front-Panel Key Access:
CRUX]
SRC ATN
Option 010 or 011 only. (Not available with HP 8590L.)
MAN AUTO
allows you to select between automatic and manual adjustment of the tracking
generator’s switching attenuator. The HP 85913 can be manually adjusted
from 0 to 60
dB
in 10
dB
steps. The HP 85933, HP 85943, HP 85953, and
HP 85963 can be manually adjusted from 0 to 56
dB
in 8
dB
steps. When
auto-coupled, the SRC ATN function automatically adjusts the attenuator to
yield the source amplitude level specified by the SRC PWR ON OFF
softkey
function. Set SRC ATM MAN AUTO so that MAN is underlined (decoupled) for
power sweeps greater than 10
dB
for the HP 85913 (or greater than 8
dB
for
the HP 85933, HP 85943, HP 85953, and HP 85963).
Front-Panel Key Access:
[AUX]
SRC PWR
OFFSET
SRC PWR
ON OFF
Option 010 or 011 only.
offsets the displayed power of the tracking generator (SRC). Offset values may
range from -100
dB
to + 100
dB.
Using the source-power-offset capability of the tracking generator allows you
to take system losses or gains into account, thereby displaying the actual
power delivered to the device under test.
Front-Panel Key Access:
C-1
Qwtion
010 or 011 only.
activates (ON) or deactivates (OFF) the output power of the tracking generator
(SRC). The power level can then be adjusted using the data keys, step keys,
or knob. Pressing any digit, 0 through 9, on the numeric keypad brings up
the selected terminator menu. The available output power level varies for
different spectrum analyzer models. See specifications and characteristics in
your calibration guide for specific information for your spectrum analyzer.
Front-Panel Key Access:
(AUX)
SRC PWR
Option 010 or 011 only.
STP SIZE
allows the user to set the step size of the source-power level, source-power
offset, and power-sweep range functions. The step size may be values from
-32.7
dB
to 32.7
dB.
The default setting is one vertical scale division.
Front-Panel Key Access:
[AUX]
START
FREQ
sets the frequency at the left side of the graticule. The left and right sides
of the graticule correspond to the start and stop frequencies. When these
frequencies are activated, their values are displayed below the graticule in
place of center frequency and span.
Front-Panel Key Access:
(FREQUENCY]
Key Descriptions 7-81