Model 250S1G6
Rev D
37
6.
A typical Sixteen-Way Combiner Insertion Loss and Combined Port Return Loss is shown in Figure 4-6.
The unused port must be terminated when checking the Insertion Loss.
NOTE: The Return Loss of the Sixteen-Way Combiner’s combined output port is typically better than
17dB (see Figure 4-6).
Figure 4-6. Typical Sixteen-Way Combiner Insertion and Return Loss: Combined Output Port
7.
If the response of the output stages (i.e., A4 Four-Way Splitter input to front panel RF output) is normal,
check the response of the A3 Quad Amp (see Figure 4-7).
Figure 4-7. Typical Quad Amp Response
NOTE: The A2 Driver amplifier, and the A1 Preamplifier’s response may differ considerably, particularly in
flatness, from the typical response shown in Figures 4-7 and 4-8.