ESG Family Signal Generators Hardkey and Softkey Reference
Phase Modulation
User’s Guide 4-75
Ext 1 AC-Coupled
This softkey lets you input an external, AC-coupled, phase modulation
signal to the EXT 1 INPUT connector. The modulation signal is tested
for voltage and a display annunciator will report a high or low condition
if the voltage is >
±
3% of 1 Vpk.
The external 1 input has multiple uses but can be used for only one
modulation at a time. If, for example, you were using the external 1
input in an amplitude modulation configuration for
AM Path 1, and then
you configured
ΦMPath2 to also use the external 1 input, the signal
generator would turn off
AM Path 1 and assign the external 1 input to
your
ΦMPath2 configuration. For the purposes of this discussion, the
external 1 AC-coupled input is the same as the external 1 DC-coupled
source.
Softkey Location:
FM/ΦM hardkey > FM ΦM softkey ΦM > ΦM Source >
Ext 1 AC-Coupled
Ext 1 DC-Coupled
This softkey lets you input an external, DC-coupled, phase modulation
signal to the EXT 1 INPUT connector.
The external 1 input has multiple uses but can be used for only one
modulation at a time. If, for example, you were using the external 1
input in an amplitude modulation configuration for
AM Path 1, and then
you configured
ΦMPath2 to also use the external 1 input, the signal
generator would turn off
AM Path 1 and assign the external 1 input to
your
ΦMPath2 configuration. For the purposes of this discussion, the
external 1 AC-coupled input is the same as the external 1 DC-coupled
source.
Softkey Location:
FM/ΦM hardkey > FM ΦM softkey ΦM > ΦM Source >
Ext 1 DC-Coupled
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