RIGOL DSA875 - Manual (Page 11)

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Using Notices
1. To use the tracking generator output terminal:
CAUTION
To avoid damage to the tracking
generator, the reverse power cannot
exceed +10 dBm when the frequency
less than 10 MHz; the reverse power
cannot exceed +20 dBm when the
frequency more than 10 MHz. The
reverse DC voltage cannot exceed 50 V.
2. To use the RF input terminal:
CAUTION
To avoid damage to the instrument,
for the signal input from the RF input
terminal, the DC voltage component
and the maximum continuous power
of the AC (RF) signal component
cannot exceed 50 V and +20 dBm
respectively.
Remote Control Overview
DSA800 supports communication with PC via USB, LAN or GPIB
(option) interface for remote control. The remote control is
realized on the basis of SCPI (Standard Commands for
Programmable Instruments) command set through two ways:
user-defined programming and PC software (such as RIGOL
Ultra Sigma). When the instrument is in remote mode, the
icon is displayed in the user interface and the front
panel keys (except Esc) are locked. At this point, you can press
Esc to exit remote mode.