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Syncing Signals of Different Waveforms
Basic Waveform and Arbitrary Waveform
1. When the frequency of the waveform is less than or equal to 10 MHz, the sync signal
is a Pulse with approximately 50 ns pulse width and the same frequency as the
waveform.
2. When the frequency of the waveform is greater than 10 MHz, there is no sync signal
output.
3. Noise and DC waveforms will have no sync signal output.
Modulated Waveform
4. When internal modulation is selected, the sync signal is a Pulse with approximately
50 ns pulse width.
5. For AM, FM, PM and PWM, the frequency of the sync signal is the modulating
frequency.
6. For ASK, FSK and PSK, the frequency of the sync signal is the key frequency.
7. When external modulation is selected, there is no sync signal output. The [Aux
In/Out] connector on the rear panel is used to input the external modulating signal.
4.8 Reference Clock
The generator provides an internal 10 MHz clock source, which can output from the [10 Mhz
In/Out] connector in the rear panel. The same connector also accepts an external clock signal.
To select or change the clock source, follow the steps below:
1. Press the Utility button.
2. Press the Page 1/2 softkey.
3. Press the CLKSource softkey to select “Internal” or “External”.
If “External” is selected, the instrument will scan if there is a valid external clock signal
at the [10MHz In/Out] connector in the back panel. If there is no signal found, the
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