How to make Power settings

Use one of the following methods to set port power.

Using front-panel hardkey [softkey] buttons

Using Menus

1. Press Power

2. then [Power] or [Power and Attenuators]

1. Click Stimulus

2. then Power or Power and Attenuators

Power dialog box help

This dialog provides basic control of source power for a specific port.

See Power and Attenuators dialog box.

Power On (All Channels)  Check to enable source power for all channels. Only turns power ON if channel power setting is ON or Auto.

Port 'n'  Active source port for which power is being set.

Port Power  Sets the power level for the specified port.

Power Sweep

Start / Stop Power  Set the start and stop power values of a power sweep.

• These settings are only available when Sweep Type is set to Power Sweep.

• You can Zoom to easily change the start and stop power levels in a power sweep. Learn how.

Power Slope

Not available on M937x models.

Power and Attenuators dialog box help

Defines and controls the source power and attenuation for the active channel.

External sources can be controlled from this dialog. Learn more.

Power On (All Channels)  Check to enable source power for all channels. Only turns power ON if channel power setting is ON or Auto.

Port Powers Coupled

• Coupled (checked)  The power levels are the same at each test port. Set power at any test port and all test ports change to the same power level.

• Uncoupled (cleared)  The power levels are set independently for each test port. Uncouple power, for example, if you want to measure the gain and reverse-isolation of a high-gain amplifier. The power required for the input port of the amplifier is much lower than the power required for the output port. A power sweep can also be performed with uncoupled power.

Name  Lists the analyzer test ports.

State

• Auto  Source power is turned ON at the specified test port when required by the measurement. This is the most common (default) setting. See also Power ON and OFF during Save / Recall, User Preset, and Preset.

• ON  Source power is ALWAYS ON, regardless of measurements that are in process. Use this setting to supply source power to a DUT port that always requires power, such as an LO port. This could turn OFF power at another test port. Learn about internal second source restrictions.

• OFF  Source power is never ON, regardless of the measurement requirements. Use this setting to prevent damage to a sensitive DUT test port.

Port Power  Sets the power level at the output of the source.

• See ECal Module Compression Level

Start / Stop Power  Available ONLY when sweep type is set to Power Sweep. Set the start and stop power values of a power sweep. Learn how to set Power Sweep.

• You can specify whether to maintain source power at either the start power or stop power level at the end of a power sweep. Learn more.

• A power sweep can be performed with uncoupled power. Different power ranges can be swept in the forward and reverse directions.

Leveling Mode

• Internal - Source correction factors are used to provide a flat output power within specifications.  NO internal circuitry is used to level the output power. Therefore, the source will NEVER become unleveled.

• Receiver Rx - Receiver Leveling. Select a receiver to use for leveling the source. Learn more.

Channel Power Slope

Not available on M937x models.

Offset and Limits  Launches the Power Offset and Limits dialog.