GW Instek GDM-8300 series User Manual - Manual (Page 64)

GDM-834X Series User Manual
64
Display
W
dB
S DC
m
dBm
measurement
Reference
resistance
Setting the
Reference
Resistance To set the reference resistance, use the Up and
Down arrow keys.
The selectable reference resistances are shown
below.
Selectable reference resistances
2 4 8 16 50 75 93
110 124 125 135 150 250 300
500 600 800 900 1000 1200 8000
View the result in
Watts When the reference resistance is less than 50Ω,
it is possible to calculate the power (in watts). If
the reference resistance is equal to or greater
than 50Ω, then this step can be ignored.
Press SHIFT → again to view the result in
watts.
Display
W
dB
S DC
m
Power measurement
and unit
Reference
resistance
W
Exit dBm
Measurement Press SHIFT → again to exit the dBm
measurement, or simply activate another
measurement function.