User Manual

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Output Units: You can set the output amplitude in Vpp, Vrms, or dBm. Vpp is available for
all functions. For sine, square, ramp and pulse, Vrms can also be used. The output units for
amplitude can also be set to dBm if the external load is currently set to ‘non High Z’.
Use the numeric keypad to enter the desired magnitude and then press the appropriate
softkey to select the units.
The convert relationship between Vrms and Vpp is subject to waveform, see below table:
Waveform
Vpp
Vrms
Sine 2.828Vpp 1Vrms
Square, Pulse 2Vpp 1Vrms
Ramp 3.464Vpp 1Vrms
The relationship among dBm and Vrms and Vpp is subject to waveform and load,
dBm＝ 10×log10(P/0.001), while, P＝ (Vrms)2/Load
If waveform is sine, set 50Ωload, the convert among three output units is shown below,
Vpp
Vrms
dBm
10.0000 Vpp 3.5356 Vrms 23.98 dBm
6.3246 Vpp 2.2361 Vrms 20.00 dBm
2.8284 Vpp 1.0000 Vrms 13.01 dBm
2.0000 Vpp 707.1 mVrms 10.00 dBm
1.4142 Vpp 500.0 mVrms 6.99 dBm
632.5 mVpp 223.6 mVrms 0.00 dBm
282.9 mVpp 100.0 mVrms -6.99 dBm
200.0 mVpp 70.7 mVrms -10.00 dBm
10.0 mVpp 3.5 mVrms -36.02 dBm