This situation typically arises when changing the voltage unit setting, such as switching to dBm. The dBm unit is only valid for a 50 Ω output impedance, so if you select dBm while the output impedance is set to High Impedance, the system will automatically revert the impedance back to 50 Ω to ensure accurate voltage and power calculations.

Not part of the isolation passage, but the passages between are independent.

55011, 55012, 55013, 55014, 55015, 55022

1. Use any wave software to generate a waveform consisting of three segments: 
Paragraph 1:  A 10 MHz sine wave lasting for 1 second.
Paragraph 2:  20 MHz sine wave, lasting for 1 second.
Paragraph 3:  40 MHz sine wave, lasting for 1 second.
Import waveform file to UTG2062X
Insert the USB drive containing the waveform file (in. arb format) into the signal source.
Press Arb → Load, select the file and load it.
Press the Output key to start segmented waveform output.
2. Use sweep mode

In total modulation, the modulated waveform is usually composed of a carrier wave and a modulated wave. The amplitude of the carrier wave is multiplied by the modulation coefficient, and the amplitude of the modulated wave is multiplied by the modulation coefficient to obtain the output waveform.

The internal resistance of the signal source is 50 Ω.