User Manual

SIGLENT
SSG5000X User Manual 52
frequency offset of the RF output.
⚫ When the modulation source is set to “Ext”, it is related to the amplitude of
the external input modulation signal. The offset of RF output = amplitude of input
signal × external modulation sensitivity.
⚫ When the modulation source selects “Int+Ext”, the set value is the maximum
value of the total offset, the internal source accounts for 50%, and the external
source accounts for 50%. RF output offset = set value × 0.5 + external input signal
amplitude × external modulation sensitivity.
External modulation sensitivity
The display shows the unit offset quantized by the amplitude of the externally
modulated signal, which is equal to the maximum offset when the external
modulation input is full scale. When the “Int+Ext” modulation source is enabled,
the internal and external each account for 50% of the maximum offset, so when the
external source inputs a full scale signal, it only accounts for 50% of the maximum
output offset.
Note: The modulation function must be activated to modulate the output signal.