Variable Voltage Source (Opt. 309); How To Make Voltage Source Settings - Keysight A Series User Manual

System Settings
System Configuration

Variable Voltage Source (Opt. 309)

An internal DC source, available with Opt. 309, may be used to provide power
for external devices. The maximum power available is 8 watts.
The voltage is output through an SMB (m) output connector located on the
left-side panel. See the connector in
An optional SMB (f) to BNC (m) bias-tee power cable is available with Keysight
part number: N9910X-713.
The following status line is provided near the top of the FieldFox screen.
Figure 30-9
Voltage Source Status Line
1. Voltage source state: ON, OFF, TRIPPED.
2. Voltage setting from 1.00 V to 32.00 V with.01 V resolution.
3. Current: The amount of current (in Amperes) being drawn from the source.
4. Max Current: A conservative estimate of maximum current possible given

How to make Voltage Source settings

1. Press System 7 >
2. Then
Then choose:
— Then Voltage x.xx V Using
—
Keysight N9927-90020 User's Guide
IMPORTANT! Noise Figure mode uses DC variable voltage source (VVS) –
(Option 309) during the measurements. The voltage might be as high as
28V during the measurement. During the noise figure measurement,
always make sure there are no voltage sensitive devices connected to the
DC SMB output port. Refer to
– CPU2 Only)," on page
When you initially change the FieldFox mode to Noise Figure, the FieldFox
displays the following message for ten seconds:
"Ensure your Noise Source is connected to the VVS DC Output
It (VVS) will be driven up to +28V during the measurement".
the present voltage setting. The actual 'trip' level may be slightly different.
System Configuration
Source ON OFF
keypad, enter a value between 0.001 and 32 volts.
Clear Overload If the voltage source becomes 'TRIPPED' press to re-enable
the voltage source output. Then set
Chapter 28, "Noise Figure Mode (Option 356
649.
"Left Side Panel" on page
Voltage Source
>
to enable and disable the voltage source output.
arrows, the rotary knob, or numeric
Source
53.
ON.
765