 The all measurement function can measure the following 29 parameters of the
source at the same time:
Voltage Parameters: Vmax, Vmin, Vpp, Vtop, Vbase, Vamp, Vupper, Vmid, Vlower,
Vavg, Vrms, Overshoot, Preshoot, Period Vrms, and Variance
Time Parameters: Period, Frequency, Rise Time, Fall Time, +Width, -Width, +Duty,
-Duty, tVmax, and tVmin
Other Parameters: +Rate, -Rate, Area, and Period Area.
 The all measurement function can measure CH1, CH2, CH3, CH4, and the MATH
channel at the same time. You can send the :MEASure:AMSource command to set
the source of the all measurement function.
The query returns CHAN1, CHAN2, CHAN3, CHAN4, or MATH. Multiple sources are
separated by commas.
:MEASure:AMSource CHANnel1,CHANnel3 /*Set the sources of the all measurement
function to CH1 and CH3*/
:MEASure:AMSource? /*The query returns CHAN1,CHAN3*/