4-14
IM AQ6376-01EN
Explanation
Log Scale (REF LEVEL)
The setting range for the log scale reference level is -90.0–30.0 dBm. Settings can be
adjusted in steps of 0.1. The value changes in steps of 1 if you press the COARSE key.
Linear Scale (REF LEVEL)
The setting range for the linear scale reference level is 1.00 pW–1000 mW.
When 1.00 to 9.99 (pW, nW, μW, mW), can be set in steps of 0.01.
When 10.0 to 99.9 (pW, nW, μW, mW), can be set in steps of 0.1.
When 100 to 999 (pW, nW, μW, mW), can be set in steps of 1.
If you press the COARSE key you can change the setting in 1-2-5 steps,
for example: 1pW -> 2pW -> 5pW -> 10pW -> 20pW.
If you make a change such as changing 999 to 1.00 or 1.00 to 999, the instrument will be
changed.
(Example: Changing pW to nW or changing nW to pW)
One-Action Keys
This is the general name for a key that uses data from the active trace waveform (the
currently displayed waveform) to set measurement conditions.
Setting conditions requires that a waveform is displayed for the active trace.
PEAK → REF LEVEL
Sets the peak level of the waveform of the active trace to the reference level.
Displays the specified reference level (peak level value) and waveform in the reference
level setting screen. The reference level setting can be changed after being set initially.
The setting can be changed within the range of -90.0–+30.0 dBm for LOG scale, or 1.00
pW–1000 mW for linear scale. If the peak level value exceeds the allowed range, it is set
to the nearest value in the range and a warning is displayed.
MARKER→ REF LEVEL
This key is used to set the moving marker level as the reference level.
Displays the specified reference level and waveform in the reference level setting screen.
The reference level setting can be changed after being set initially. The setting can be
changed within the range of -90.0–+30.0 dBm for LOG scale, or 1.00 pW–1000 mW for
linear scale.
If the moving marker value exceeds the allowed range, it is set to the nearest value in the
range and a warning is displayed. In the following states, the MARKER → REF LEVEL
key is disabled.
• When the moving marker is OFF
• When both split screens are on HOLD
4.4 Setting the Reference Level