H Heuer Instruments UMDT51A, User Manual

Page: 62 / 104

Making Measurements
LT51 User Manual 50
The following settings are relevant to Near End X-Talk measurements and
should be set according to requirements:

select the frequency span / centre frequency. (filter is set to NO FIL).

select the impedance (always terminated).

set Sweeping configuration for swept or single SINE measurements.
The following settings are fixed for the test and cannot be altered:

the impedance is always terminated.

Transmitter interface is set to TX-RX .

TX level is set to 0 dBm.
Use the marker to determine NEXT / Loss at a particular frequency (see Marker
functions).
NOTE: The far end of both pairs should be terminated with the selected
impedance.