Term
| A method of conducting an annual CLI test is: |
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Definition
| Perform a flyover or ground base test |
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Term
| The affects of a downstream leak are: |
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Definition
| Anyone watching video services past the problem and shared frequencies |
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Term
| The affects of an upstream leak: |
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Definition
| Anyone using data services and the shared frequencies |
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Term
| The purpose of a closed coax system is: |
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Definition
| Signals are completely contained within the coax to prevent any escape to possibly interfere with other services |
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Term
| The spigot is another name: |
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Definition
| For the tap port in which the customer connects to |
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Term
| Cable systems were originally built to: |
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Definition
| Provide broadcast channels to areas unable to receive them over the air |
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Term
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Definition
| Referred to as electromagnetic radiation |
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Term
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Definition
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Term
| In 1985 updated rules required carriers: |
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Definition
| Not to exceed an average power of 38.75dBmV |
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Term
| A signal leakage detector works by: |
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Definition
| Inserted frequency at headend that is not used by anyone |
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Term
| In 1990 FCC required that systems perform: |
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Definition
| Cumulative leakage index (CLI) test |
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Term
| The purpose of the RFI gasket is: |
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Definition
| Helps prevent both ingress and egress |
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Term
| Limit for leakage per the FCC is: |
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Definition
54-216MHz 20 microvolts per meter at 3 meters (10ft)
5-54 and above 216MHz 15 microvolts per meter at 30 meters |
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Term
| Using your SLM you must convert dBmV: |
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Definition
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Term
| The purpose of the Dipole Antenna is: |
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Definition
| An aerial half a wavelength long consisting of two rods connected to a transmission line in the center (used for triangulation) |
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Term
| Location of the dipole antenna for triangulation is: |
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Definition
| 10ft from plant, 10ft from ground, 10ft from other conductors |
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Term
| During leakage tests the required information documented is: |
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Definition
The strength of leak, distance, date repaired, location, date found, and cause
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Term
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Definition
| Cable operators file an annual CLI calculation |
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Term
| The locaion of the CLI test is located: |
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Definition
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Term
| Flyover CLI checks are flown at an altitude of: |
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Definition
1500 ft and checks carriers between 108-307MHz
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Term
| During the ground based CLI test: |
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Definition
| Leaks greater than 50µV per meter must be logged |
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Term
| During ground CLI rideout leaks that are greater than 20µV per meter: |
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Definition
| Required to be logged for regular monitoring |
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Term
| FCC requires that a minimum of: |
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Definition
| 75% of the plant be tested. |
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Term
Comcast standards of total plant check for CLI is:
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Definition
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Term
| In all cases of ingress mitigation priority must be given to: |
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Definition
| frequencies in the 18-42MHz range |
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Term
| Before any intrucive techniques are performed, what must be done in watchtower: |
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Definition
| Signal interuption to verify no 911 calls in progress and IVR deflection is in place |
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