B&K Precision 4052-4055 - Manual - Manual (Page 38)

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WARNING: Do not connect more than ± 6 V into the Modulation In terminal. This will
damage the instrument and void its warranty.
ASK (Amplitude Shift Keying)
Follow the steps below to setup ASK modulation output.
1. Configure your waveform with the desired frequency and amplitude, then press the
Mod button. Under Type, select ASK.
2. There are two parameters that can be adjusted: Key Freq and Source.
3. To adjust ASK frequency, select Key Freq option from the menu. Key frequency
parameter will be highlighted by the cursor on the first digit. Use the rotary knob or
the numeric keypad to enter the modulating frequency. This is the frequency at
which the output amplitude shifts between the carrier amplitude and 0.
4. Select Source and choose between Internal or External.
Internal – The modulating source will be generated internally.
External – Use external modulating source. Users can connect an external
signal into the rear BNC terminal labeled ExtTrig/Gate/FSK/Burst as the
modulating source.
WARNING: Do not connect more than ± 6 V into the rear terminal. This will damage the
instrument and void its warranty.