# Signal Generator output voltage

Newbie: I have a signal generator set (I hope!) to output a 60htz, 12v sine wave. When I put a DMM set for AC across the output I measure < 5v?? I expected either 12v peak to peak, or 8.5 RMS. What am I missing?

• FeelTech FY6800
• CH1=SINE ON
• FREQ: 0.050 KHz
• AMPL: 12.0000V
• OFFS: 0.00
• DUTY: 50.00% (not changeable)
• PHASE: 0.0°

DMM AC 0.421 V RMS

• What signal generator, and how did you configure it? – Jeroen3 Sep 27 '18 at 6:15
• Note that nearly all signal generators specify their output voltage amplitude in Vpeak (not Vpeak-peak and also not Vrms). Also nearly all signal generators specify that voltage when a 50 ohm load is applied. Your DMM is not a 50 ohm load, so then you would get double the voltage. Also most DMMs specify AC voltage in Vpeak (not Vpeak-peak) or Vrms (cheap DMMs might fake the RMS value though). – Bimpelrekkie Sep 27 '18 at 6:23
• Updated question with settings. Strangely 2 x 0.421 is more or less the RMS of 12V peak – Keith Whittingham Sep 27 '18 at 13:53