6-12
IM AQ1200-01EN
Explanation
Return Loss and Reflection Level
• You can select how reflections are displayed from two methods: return loss and reflection level. The
measured value for the display method that you have selected is displayed on the computed result
screen. For the operating procedure, see section 5.5.
• If “<” is displayed next to the return loss value, the measured waveform is saturated. If the waveform
is saturated, the actual reflection value is larger than the value shown. To prevent a waveform from
being saturated, you can:
• Select a large attenuation value, and perform the measurement again.
• Select Hi-Reflection for the average method, and perform the measurement again.
• Select a large pulse width value, and perform the measurement again.
• When reflections are small (less than or equal to about 0.5 dB), the return loss and reflection level
are not displayed.
6.5 Measuring the Return Loss or Reflection Level
