
2-44 Programming Guide
Programming Commands and Examples ESG Family Signal Generators
:OUTPut Subsystem
:OUTPut Subsystem
The RF output subsystem is used to set the controls and the parameters associated with
the signal generator’s RF output.
RF Output Circuit Protection Clear
:OUTPut:PROTection:CLEar
There is no query for this command.
This command resets the signal generator’s reverse power protection circuitry.
RF Output Circuit Protection Mode
:OUTPut:PROTection:MODE "NORMAL"|"8648"
:OUTPut:PROTection:MODE?
This command sets operating mode of the signal generator’s reverse power protection
circuitry. The choices are Normal and 8648. When set to Normal, the RPP can only be reset
by eliminating the source of the excess reverse power detected at the RF OUTPUT
connector, and then pressing Reset RPP or sending the remote command
OUTPut:PROTection:CLEar. When set to 8648, the RPP will be reset and the caution
message removed on any SCPI command. This mode is provided for compatibility with
systems that use the HP/Agilent 8648. It is only available when you have selected
8648A/B/C/D as the remote language. At all other times reverse power protection is set to
Normal.
CAUTION Operate in this mode with caution. Repeatedly tripping the RPP can cause
damage to the signal generator. It is still best to eliminate the source of the
excess reverse power and then reset the reverse power protection circuit by
pressing the
Reset RPP softkey or sending the remote command
OUTPut:PROTection:CLEar. You should not ignore RPP trips. Hardware
damage may occur before the RPP can protect the instrument.
The RPP reset mode is a persistent state, set to Normal at the factory; it is not affected by
an instrument preset or by a power cycle.
RF Output Circuit Protection Query
:OUTPut:PROTection:TRIPped?
This command queries the signal generator’s reverse power protection circuitry to
determine if it has been activated.
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