User Manual 53
Square: 1μHz to 50MHz
Ramp: 1μHz to 5MHz
Arb: 1μHz to 50MHz
Press
HopFreq1/HopFreq2/HopFreq3
to set the parameter. Use the numeric keyboard or
direction keys and knob to input the desired frequency value.
5.12 OSK Modulation
When OSK (Oscillation Shift Keying) modulation is selected, users can configure the generator to
output a sine signal with intermittent oscillation as shown in the figure below (the carrier waveform
is 100Hz and the OSK rate is 10kHz). The start-oscillation and stop-oscillation of the internal
crystal oscillator are controlled by the internal signal level or signal level at the
[Mod/FSK/Trig]
connector at the frount panel. When the internal crystal oscillator starts to oscillate, the instrument
starts to output the carrier waveform and when the internal crystal stops oscillating, the output
stops.
5.12.1 Select OSK Modulation
Press
Mod->Type->OSK
to enable this function.
When
Mod
is enabled,
Sweep
or
Burst
will be disabled automatically.
After OSK is enabled, the instrument will generate OSK waveform with the currently specified
carrier and modulating waveforms. To avoid multiple waveform changes, enable modulation
after configuring the other modulation parameters.
5.12.2 Carrier Waveform Shape
OSK carrier waveform can only be sine waveform. Press
Sine
at the front panel.