ComSonics CyberTek QUALIFIER, User Manual

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Appendix - Qualifier System
3-14
Exhibit E
A further test involves testing the drop cable section of the home system. The drop cable is
disconnected from the ground block and the drop cable is connected to the receiver. With
the mobile transmitter powered on and the receiver tuned to the frequency of the transmitter,
the level of test signal is measured. The level of the received test signal is compared to a
reference standard to determine if the shielding integrity of the drop cable is acceptable. Test
signal level measurements may be indicated by the receiver in common units of
measurement, such as
µ
V or dBmV. The receiver may automatically perform a level
comparison and display a ‘Q’ factor reading. A greater than acceptable level measurement
would most likely indicate a faulty connection at the local tap.
Inside Cables
Drop Cable
Ground Block
Local Tap
Receiver
Service Vehicle
Transmitter
Antenna