Rf Data In - Keysight Technologies 81490A User Manual

Getting Started Getting Started with the Reference Transmitter Module
2. Move to [Unlock], and press Enter.
3. Enter the password, and press Enter.
4. Press Close.
The default password for the mainframe is "1234".
N OTE
Enabling and Disabling the Laser Output
Switch the laser on and off by pressing the Active button on
the front panel of the module.
The State parameter and the Active LED indicate whether
the module is emitting radiation.
If the the laser is active, the State parameter is On and the
Active LED on the front panel of the module is lit.
If the laser is inactive, the State parameter is Off and the
green LED on the front panel of the module is unlit.

RF Data In

Do not apply signals to the Data In that exceed -2V and +2V. Within this
C AU T I ON
range, the signal voltage must be less than 2V peak-to-peak.
The RF input is a 2.4 mm female RF connector. It is AC
coupled. The RF input signal should be less than 1Vpp. This
is the linear area of the E/O converter.
Values outside this range will overdrive the output signal.
If you have applied a signal that overdrives the output
1. Reduce the level of the input.
2. Turn the laser off and back on again.
Keysight 81490A Reference Transmitter Module User's Guide, Edition 3.0
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