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Generating an ask modulated waveform – Teledyne LeCroy WaveStation Waveform Generator Operators Manual User Manual

Page 43

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Operator’s Manual

922700-00 Rev A

37

B

Generating an ASK Modulated Waveform

After selecting the Mod → ASK (Amplitude Shift Keying) operator button,
WaveStation shows the ASK Operation menu and corresponding Display
and Detail dialogs.

Press adjacent Operation buttons and use the Digital Input Front Panel
Controls to make specific adjustment/selection parameter choices. For
more information on getting to this point, see Navigating Interfaces,
Adjusting Parameters, and Making Selections (on page 11).

ASK modulation represents digital data as variations in the amplitude of a
carrier wave. The amplitude of an analog carrier signal varies in accordance
with the bit stream (modulating signal), keeping frequency and phase
constant.

Mod → ASK Operation menu selections and parameters include Key Freq,
Type, and Source as follows:

Key Freq - This parameter sets the frequency at which the output
amplitude shifts between the carrier amplitude and 0. The internal
source frequency range is 2 MHz to 50 kHz.

Type - Amplitude Shift Keying Modulation.

Source - Select Internal or External. If External is selected, use the
Trig/Gate/Fsk/Burst connector on the Back Panel.