Anritsu MS9740B - Page 124

Chapter 4 Changing Measurement Conditions
4-6
To set reference level:
When Level Scale is set to Log Scale, the reference level is called
Reference Level.
Note:
When Linear Scale is set, the bottom of the vertical axis become 0
W and cannot be changed.
1. Press
f2 Ref Level
or
Ref
.
The current reference level is displayed in the setting value input
field.
2. Enter the value using the rotary knob or keypad.
Press
Ref Lvl
to set the maximum level of waveform to the
reference level.
The setting reference level range is as follows.
Normal display: –90 to +30 dBm
Relative display: –100 to +100 dB
To set linear scale
1. Press
f4 Linear Level
.
The current settings are displayed in the setting value input field.
2. Select the value from
f1
to
f6
, or enter the value using the rotary
knob or keypad.
The setting linear scale range is as follows.
Normal display: 1 pW to 1 W
Relative display: 1 to 200 %
To set internal optical attenuator:
When the optical level is 10 mW (+10 dBm) or more, set the internal
optical attenuator as follows:
1. Press
f6 Opt.Att On/Off
.
2. When using the optical attenuator,
Opt. ATT On
is displayed in the
lower right of the screen.
3. Press
f6 Opt.Att On/Off
again to release the settings of the optical
attenuator.