Service manual

8510XF Network Analyzer Systems 3-37

Operation

LO Power

If {LO LEVEL / EXTERNAL} is selected, the LO source performs its own leveling,

using an external detector.

{LO LEVEL / LEVELING OFF} is selected, the LO source is set to the unleveled

mode.

LO Power Settings The {LO POWER SETTINGS} softkey calls up a submenu (see “LO Power

Settings” below).

LO Power On/Off The softkeys {LO POWER /ON} and {LO POWER /OFF} activate and deactivate LO

source power.

LO Power Settings [SYSTEM] {MORE} {LO POWER CONFIG} {LO POWER SETTINGS} calls up the submenu

which is shown on the right of Figure 3-20 on the previous page.

NOTE The functions represented on this submenu will not work if {LO LEVEL /

SYSTEM}

is selected on the [SYSTEM] {MORE} {LO POWER CONFIG} menu (see “LO

Power Conﬁguration” on page 3-36). These functions are not used during

normal operation of the system; they are made available for service use, or

for unusual measurement situations.

LO Source Power {LO SOURCE POWER}, followed by a number, speciﬁes a power level setting for

the 83621B LO source, in dBm.

LO Source Slope {SLOPEON} and {SLOPE OFF} are used to enable and disable power slope for the

LO source.

{SLOPE ON}, followed by a number, speciﬁes the power slope

setting for the LO source, in dB/GHz.