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Digital Modulation, Internal and
External
Both generators offer a
comprehensive set of digitally based modulations.
The internal modulation source can
use any of the standard or arbitrary waveforms within
the generator (including noise) thus removing the need for an external
modulation source. A modulating frequency between 1uHz
and 20kHz can be specified.
An external modulation input enables
any external waveform source to be used when required.
The bandwidth is DC to 20kHz.
AM, FM and PM Sine, square, ramp or
arbitrary waveforms can be modulated using amplitude,
frequency or phase modulation.
Amplitude depth is variable from
0.0% to 120.0%, frequency deviation from zero to Fmax/2,
and phase deviation from -360.0 to +360.0 degrees.
PWM Pulse width modulation is
available for the pulse function using any standard or
arbitrary waveform including noise.
Pulse width deviation is variable
between 0% and 100%.
FSK Frequency shift keying between
any two frequencies is available for sine, square, ramp
or arbitrary waveforms using the internal trigger
generator or an external trigger signal.
The internal trigger generator is
variable between 2mHz and 1MHz with 9 digit resolution. |
