Table of Contents
Advertisement
Measurements Applications
Measuring Signal-to-Noise Ratios
4 To select the wavelength reference for measuring the noise, do the following steps:
a Press WL REF, and
• press AUTO to let the instrument interpolate the wavelength,
or
• press USER to select the last wavelength manually entered.
b If you chose USER, you can specify the wavelength by pressing USER WL. Use
the
softkey to select the digit that requires editing. Use the
to change the value.
c Press RETURN.
5 While the signal-to-noise measurements are displayed, you can press PEAK anytime
to select the signal with the highest power.
72
and
softkeys
Advertisement
Table of Contents
