Measuring Return Loss And Insertion Loss; On-Screen Messages; Table 19 Return Loss Application On-Screen Messages - Agilent Technologies 8163A Manual

Applications
NOTE

Table 19 Return Loss Application On-Screen Messages

280
All manuals and user guides at all-guides.com

Measuring Return Loss and Insertion Loss

To measure return loss and insertion loss insert a Return Loss module and
a Power Sensor module into the Agilent 8163A/B Lightwave Multimeter.
Connect the Return Loss Module to the Power Sensor Module via the
Device Under Test (DUT). Both values are shown simultaneously on the
display depending on the calibartion and configuration status. You can
freeze the measurement values during measurement either by pressing
the "Hold/Cnt" softkey or by using a foot pedal if this option has been
enabled via the "Config" hardkey. (See "How to Configure your Foot
Pedal" on page 71 for further details). For general information on
measuring return loss and insertion loss, please refer to"Return Loss
Measurement" on page 163.
The Return Loss Application always uses the first available power meter
channel on dual power meters.

On-Screen Messages

Agilent 8163A/B Description
Message
Hold Either the Hold/Cnt Softkey or the foot pedal have been
pressed to freeze the measurement value
UnCal Application has not performed a calibration cycle with select-
ed wavelength. If dual wavelength is selected, at least one
wavelength is uncalibrated.
NoH There is an Optical Head Interface module inserted in the
mainframe that does not have an Optical Head connected to
it. No measurement is possible using this channel until you
reconnect an optical head
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
The Return Loss Application