EXFO MAX-635G, User Manual

Page: 238 / 451

Frequency Tests
228
MAX-635G
Return Loss
Return Loss
The Return Loss test allows you to measure the loss of power in the signal
returned/reflected by a discontinuity in a transmission line. This
discontinuity or impedance variation can be a mismatch with the
terminating load or with a device inserted in the line.
Single Frequency
The Single Frequency test is continuous, and allows
you to configure parameters and change values
during the measurement. The page provides a
Return
Loss
result value in dB, and pass/fail status.

Current Group is the current test group name, for
example
Frequency Tests
.

Current Test displays the test being measured.
Here you can switch to another
Frequency
test
from the given list. However, this action will
terminate the ongoing measurement test.

Frequency allows you to set the frequency value
for the
Return Loss
test.

Frequency Step lists a choice of frequency step values.

Termination Resistance
lists a choice of resistance values for the
termination of the signal.

Threshold Settings
button opens a new page that allows you to set
Return Loss thresholds for the transmission.