No RF Output at Receiver RF Test Point: Optical Power LED on Receiver Module is off
Notes
These notes apply to the previous troubleshooting flowchart.
Note
Description
For standard receiver
1
This unit will have no RF output.
2
The receiver will not function below
this DC level which is equal to 10
dBm.
The optimum light level input is -6
to 2 dBm.
For every 1 dBm change in optical
input power, the RF output will
change by 2 dB.
Excessively high light input levels
(> +2 dBm) will cause distortions
and/or damage the photo diode.
For low input receiver
This unit will have no RF output.
The receiver will not function below
this DC level which is equal to 10
dBm.
The optimum light level input is
-10 to -2 dBm.
For every 1 dBm change in optical
input power, the RF output will
change by 2 dB.
Excessively high light input levels
(> -2 dBm) will cause distortions
and/or damage the photo diode.
141