B&K Precision 4052-4055 - Manual - Manual (Page 37)

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3. To adjust DSB frequency, select DSB Freq option from the menu. DSB-AM frequency
parameter will be highlighted by the cursor on the first digit. Use the rotary knob or
the numeric keypad to enter the DSB modulating frequency.
DSB Freq adjustable range: 2 mHz – 20 kHz
Note: Adjustable range is dependent on the carrier frequency.
4. Select Shape to choose the shape of the modulating waveform. Options are: Sine,
Square, Triangle, UpRamp, DnRamp, Noise, Arb.
UpRamp = Upward ramp waveform
DnRamp = Downward ramp waveform
Arb = This will be the waveform that is currently loaded from within the arb function
menu. To change, follow the instructions in the previous section.
5. Select Source and choose between Internal or External.
Internal – The modulating source will be generated internally using the DSB
Freq and Shape as defined in the previous steps.
External – Use external modulating source. Users can connect an external
signal into the rear BNC terminal labeled Modulation In as the modulating
source. DSB Freq, and Shape options will not be available.