Testing Plc Systems - H Heuer Instruments UMDT51A User Manual

4. Testing PLC Systems

Fc1
Carrier
DATA
VOICE
PLC
Figure 4.1: Test Setup – PLC Testing with LT51
1. Connect a coaxial cable between the BNC Adaptor (plugged into the LT51
RTXa-b terminals) and the RF coaxial interface of the PLC system unit.
2. Press the
[f2] "Reset LT51" soft-key.
3. Press the
4. Press [f3] "RxRange" soft-key, and turn the knob to set the range to "0dB".
5. Connect the RF signal to the LT51 RTXab terminals USING the 40dB
attenuator.
LT51 User Manual
RF output
75 Ω
+40 dB
terminated
Fc2
Carrier
AF/VF
input
600 Ω
key, followed by the [f2] "Meas Settings" soft-key. Press the
button, then the [f1] soft-key to set ZRTX to "75 Ω", HiZ.
Testing PLC Systems
-40 dB
Attenuator
Supplied
Accessory
19