Carrier 8357 User's Guide download pdf (Page 61)

Keysight E8357D/67D & E8663D PSG User’s Guide 49

Basic Operation

Using the User-Defined RF Output Power Limit (Option 1EU, or 521 only)

Figure 2-2 User-Defined RF Output Limit Softkey Menu

The following example enables the RF Output power limit and changes the

value to 20 dBm.

1. To change the RF output limit value:

Press Amplitude > More > More > RF Output Limit Lock Adjust to Adjust.

2. To change the RF output limit value:

Press RF Output Limit > 20 dBm

By default, the RPG and increment/decrement controls are disabled to

avoid accidental changing of the RF output limit. Press the left/right

cursor hardkeys to select a digit and enable the RPG or use the keypad to

enter the dBm. The minimum settable value is 15 dBm. The maximum

settable value is the unleveled power of the instrument. For settings

accuracy, refer to the Data Sheet.

3. To prevent accidently changing the RF Output Limit level:

Press RF Output Limit Lock Adjust to Lock.

Amplitude > More > More

SCPI Commands:

To enable changing the RF output limit:

SCPI Command: [:SOURce]:POWer:LIMit[:MAX]:ADJust <ON|OFF|1|0>

SCPI Command: [:SOURce]:POWer:LIMit[:MAX]:ADJust?

To change the RF output limit:

SCPI Command: [:SOURce]:POWer:LIMit[:MAX] <ampl>

SCPI Command: [:SOURce]:POWer:LIMit[:MAX]?

This softkey is only

active when the RF

Output Limit softkey

is set to “Adjust”.

The default RF

Output Limit value is

shown in here.

When the amplitude

is within

1 dB of the RF

output limit value or

exceeds the RF

Output Limit value,

the value is

displayed in bold

text.

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Carrier 8357 User's Guide Page 61