User Manual

SIGLENT
SSG5000X User Manual 49
from 0.01% to 100%. The relationship between the modulation depth m and the
carrier sideband level difference ΔP is satisfied: ΔP=6.02-20*log (m)
When the “Ext” modulation source is selected, the sensitivity of the external
modulation source level amplitude to the modulation depth is 50%/V. For example,
the modulation depth is 100% when the external modulation signal is 2Vpp (offset
is 0V), and the modulation depth is 50% when the external modulation signal is
1Vpp (offset is 0V).
When selecting the “Int+Ext” modulation source, the modulation depth set is the
internal source modulation depth + the external source modulation depth, and the
internal source modulation depth is assigned = the external source modulation
depth. For example, if the modulation depth is set to 100%, the modulation depth
assigned to the internal source is 50%, the external source modulation depth is 50%,
and the external modulation sensitivity is 25%/V. If the external modulation signal
is 2Vpp (the offset is 0V), then the modulation depth is 100%.
Frequency Modulation (FM)
Enter the FM interface
1. Click the MOD icon in the main interface to enter the MOD interface. The MOD
interface displays the AM page by default. Then switch to the FM modulation