5.Panel Operation
Figure 5-26: OSK user interface
How to set the parameters of OSK
(1) Set carrier wave shape:
OSK carrier wave can only be sine wave. Press to set the carrier
wave shape.
(2) Press the Mode function key, press the NextPage softkey three more
times, then press the OSK softkey to enter OSK user interface.
Note: If Sine wave has not been selected, OSK in the menu is
unavailable.
(3) Set carrier wave parameters:
Press to display the waveform and parameters of the carrier wave.
You can change the parameters of the carrier wave. Press the
corresponding carrier waveform key to return to the modulation mode
interface or press the Mode key to return to the modulation selection
mode.
(4) Select modulating wave source:
OSK uses internal modulation source, and the modulating wave is set as
a Square with 50% duty cycle.
(5) Set OSK rate:
Press the Frequency softkey to set the OSK rate. The intermittence time
and oscillate time of the output signal is determined by OSK rate (for
internal source). The range is 2 mHz – 100 kHz.
(6) Set oscillate time:
Oscillate time is the oscillation period of internal crystal oscillator. The
settable range of the oscillate period is related to the OSK rate currently
selected. Press the Osc Time softkey to set the oscillate time. The range
is 8ns - 250s.
SUM (Sum Modulation)
The modulated waveform consists of the carrier wave and the modulating
wave. For SUM, the amplitude of the carrier wave varies with the
instantaneous voltage of the modulating wave. The SUM user interface is
shown below.
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