User Manual

Set BPSK rate
The frequency between carrier phase and modulation phase can be set. After you use
BPSK function, you can set BPSK rate, which is in the range of 2mHz~1MHz and 100Hz
by default. You can change it with multi-functional knob and direction key on the interface
for using PSK function or by pressing Param Rate .
Set modulation phase
Modulation phase is change in phase of waveform subject to PSK modulation relative to
carrier phase. The range of BPSK modulation phase is 0˚~360˚. You can change it with
multi-functional knob and direction key on interface for using PSK function or by pressing
Parameter → Phase2 .
Comprehensive example
First make the instrument run in BPSK mode, and then set an internal sine wave of 2kHz
and 2Vpp as carrier signal. Finally set carrier phase and initial modulation phase to be 90 ˚,
frequency between phases to be 1kHz and PN code to be PN15. The specific steps are as
follows:
Use BPSK function
Press s Menu → Type → BPSK successively (press soft key Type to select if Type is
not highlighted) to use BPSK function.
Set carrier signal parameters
Press Carrier Type Sine to select carrier signal as sine wave. The default carrier
signal is sine wave, so it is unnecessary to change in this example.
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