Rigol DG5071, Руководство пользователя

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RIGOL Chapter 4 Common Modulation Output
User’s Guide for DG5000 4-18
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square with
50% duty cycle, and the “shift” frequency at which the output phase shifts
between “carrier phase” and “modulating phase” is determined by “PSK Rate”.
2. External Source
When external source is selected, the generator accepts the external modulating
signal from the [ExtTrig] connector (see the following figure) at the rear panel.
Notice that, the [ExtTrig] connector used to control PSK modulation externally is
different from the [ModIn] connector used to control AM/FM/PM modulation
externally. In PSK modulation, [ExtTrig] has an adjustable edge polarity.
To Set PSK Rate
When internal source is selected, press PSK Rate to set the “shift” frequency at
which the output frequency shifts between “carrier phase” and “modulating phase”.

Input the desired rate value using numeric keyboard or knob.

The available rate ranges from 2 mHz to 1 MHz, and the default value is 100 Hz.
Notice that, this menu will be grayed out and disabled when external source is
selected.
To Set Modulating Phase
Press Phase to set the modulating phase.

Input the desired phase value using numeric keyboard or knob.

The available phase ranges from 0 º to 360 º, and the default value is 180 º.
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