BASIC OPERATION 
53 
Vertical Scale Units 
 
Change the vertical units for both linear or 
logarithmic scales.  
> More[F7]>Y Axis[F1] and then 
choose the desired units.  
2.  The units are changed accordingly. 
dBm, dBmV, dBuV, 
Watts, Volts 
Reference Level Offset 
 
The Reference Level Offset function sets an 
offset value to the reference level to compensate 
for any loss or gain from an external network or 
device. 
The offset value does not affect the input 
attenuation or the on-screen trace. 
This setting will change the reference level 
readout, the scale readout and the marker 
readout. 
> More[F7]>RefLvlOffset[F4] and set 
the offset level and unit.  
2.  To remove the offset level, set the reference 
offset to 0 dB. 
The AMP icon is displayed at the bottom 
of the screen.