Here are complementary tests around the AM modulation with my 3.2.1 AWG version.
1) I went back to the original HW & SW : FP + Feeltech PC SW
CH1 = Sine 100 KHz 2Vpp on 50 ohms, no offset and CH2 = Sine 1000Hz 1.5Vpp Hi-Z, no offset
Vpp measured : 1.03V (normal) constant amplitude
click on AM button : nothing(100KHz carrier constant 1.03V amplitude)=> click on FM : nothing => click on FSK or PSK : ok => click on FM : nothing => click on AM : nothing
same behavior with CH2 ON
Note: when I modify freq or amplitude parameter on the FP, nothing is reported to the PC screen, old freq or amplitude displayed
2) I use fremen67 PC SW anf FP - same channels configuration
CH1 unmodulated : 1.03V constant amplitude
click on AM button (green) 776mV constant amplitude
CH2 on : 1.03V constant amplitude on CH1
AM button : inactive
click on FM button : ok FM modulation on scope
I restart both AWG and fremen67 PC SW
same behavior but I click on AM button after FM and AM mod works !
during all the test, FSK or PSK works.
Not easy to find out one's way in this.
Did anyone report same problem with the original SW ? if not with what Feeltech version ? I use V5.5
Cheers.
Dom