RF-MCHYBRIDPRO-01
Hubbell Power Systems, Inc.
–
RFL™ Products
June 2019
33
973.334.3100
5.2
Testing the Skewed Hybrid
The skewed hybrid has two parameters which must be checked to verify correct operation: insertion
loss and isolation.
Table 10 – Skewed Hybrid Loss Characteristics
Skewed Hybrid Loss Characteristics
Insertion Loss
TX to LINE
~0.5 dB
LINE to RX
~13 dB
Isolation (trans-hybrid loss)
TX to RX
>40 dB (minimum 25 dB)
TX
RX
SK
LINE
Signal In
To FSVM /
50-ohm termination
Hybrid port internally
terminated (when J4 = IN)
Figure 41 – Measuring Skewed Hybrid Insertion Loss, TX to LINE
TX
SK
LINE
Signal In
50-ohm
dummy load
RX
Hybrid port internally
terminated (J4 = IN)
To FSVM /
high-impedance input
Figure 42 – Measuring Skewed Hybrid Insertion Loss, LINE to RX
Summary of Contents for RFL PLC Hybrid Pro
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