Output Power - Agilent Technologies N9913A User Manual

Trigger Slope
Determines which edge of an External trigger signal initiates a sweep.
 Press Sweep 3
 Then
 Then
 Then choose from the following:

Output Power

Set the power level out of the FieldFox to High, Low, or manually set power level
to a value between High and Low.
Generally, the high power setting is used when measuring passive, high-loss
devices to place the signal farther from the noise floor. However, for devices that
are sensitive to high power levels such as amplifiers, use the Low power setting.
For best measurement accuracy, use the Manual power setting at -15 dBm. After
calibration, the power level can be decreased for amplifiers, or increased for
higher dynamic range.
Caution Power Level settings in this mode will NOT change Power Level settings in other
modes. To help prevent damage to your DUT, use caution when changing modes
with your DUT connected to the FieldFox test ports.
How to set Output Power
 Press Meas Setup 4.
 Then
NA (Network Analyzer) Mode
Sweeps are initiated by the FieldFox internal circuitry. When
Internal
o
Sweep is set to Continuous, a new sweep begins automatically when the
previous sweep ends.
External A sweep is initiated on the rising or falling edge of an external TTL
o
signal at the Ref In/Trig In connector on the FieldFox top panel.
o When the FieldFox is armed for an external trigger signal,
annotated on the display.
o A sweep can NOT be initiated by an external signal while a sweep is in
progress.
o A sweep can NOT be initiated by an external signal when in HOLD mode.
Learn more about HOLD mode on page 49.
Trigger
Trig Slope
Sweep is initiated by the rising edge of signal at about 1.7 V.
Positive
o
Sweep is initiated by the falling edge of signal at about 1.0 V.
Negative
o
Output Power
High Sets output power to the maximum achievable power at all displayed
o
frequencies. Output power is NOT FLAT across the displayed FieldFox
frequency span. Please see the FieldFox Specifications (see page 232) for
expected power levels.
Low Sets output power to approximately –45 dBm, FLAT across the
o
displayed FieldFox frequency span.
Wait is
51