Cisco Model GS7000 4-Port Node 1 GHz with 65 86 Split Installation Guide
Poor Frequency Response
OL-29643-02
163
Notes
These notes apply to the previous troubleshooting flowchart.
Note Description
1
Be sure all unused ports are properly terminated into 75 ohms to prevent
mismatches. The frequency response is cumulative and reflects the
response of each active device in the link:
mismatches. The frequency response is cumulative and reflects the
response of each active device in the link:
The frequency response for the transmitter is dependent on the transmitter
manufacturer's specification.
manufacturer's specification.
The frequency response of the GS7000 Node is ±1.0 dB from 52 MHz to 1002
MHz (for optical receiver and amplifier combined).
MHz (for optical receiver and amplifier combined).
2
It is possible that the RF amplifier is set up incorrectly. Always check to
see that padding and equalization is correct to ensure proper levels at
the inputs to each gain stage. See the pad and equalizer selection charts
in Appendix A for correct pad and equalization.
see that padding and equalization is correct to ensure proper levels at
the inputs to each gain stage. See the pad and equalizer selection charts
in Appendix A for correct pad and equalization.