Velleman HPS50 - Manual (Page 32)

32
HPS50 PersonalScope TM
6. dBV measurement (dBV ac).
The measured signal (ac only) is converted to dBv
(0dB= 1V).
7. dBm measurement (dBm ac).
The measured signal (ac only) is converted to dBm
(0dB= 0.775V).
8. dB measurement (dB ac).
The measured signal (ac only) is converted to dB
(0dB= dBref*)
9. True RMS readout (Vrms ac+dc)
The true RMS value of the wave (ac+dc) is
calculated and converted to voltage.
10. dBV measurement (dBV ac+dc).
The measured signal (ac+dc) is converted to dBv
(0dB= 1V).
11. dBm measurement (dBm ac+dc).
The measured signal (ac+dc) is converted to dBm
(0dB= 0.775V).
12. dB measurement (dB ac+dc).
The measured signal (ac+dc) is converted to dB
(0dB=dBref*)
Fig 26
9 10
8 7 12 11
Meter readout
*dB ref
Select dBref to set the user defined reference for
dB measurement, the selected meter will be set for
dB measurement