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Spectrum Field Technician Onboarding Final Exam
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Spectrum Field Technician Onboarding Final Exam
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Spectrum Field TechnicianOnboarding Final Exam
Ohm's Law Equation for RG-6 - -34.1Ω per 1000ft; .0341Ω per foot
-Ohm's Law Equation for RG-11 - -16.1Ω per 1000ft; .0161Ω per foot
-What is the clearance required for our drops to be from power at the pole? -
-40"
-What is the clearance required for our drops to be from phone at the pole? -
-12"
-What is the clearance required for our drops to be from power at the
house? - -12"
-What is the clearance required for our drops to be from phone at the
house? - -4"
-How far above a residential walkway does our drop have to be? - -9'6"
-How far above a residential driveway does our drop have to be? - -11'6"
-How far above a public road does our drop have to be? - -15'6"
-How far above a public highway or interstate does our drop have to be? - -
18'
-What is the sag ratio for aerial drops? - -6" per 50ft of coax
-How far does a Q-clamp have to be from the center of the pole? - -24"
-How far does a Q-clamp have to be from the tap? - -6"
-At what point does the FVD audibly tone? - -50 volts
-What is the downstream/Rx bandwidth range? - -50-860 mHz
-What is the upstream/Tx bandwidth range? - -5-42 mHz
-What is MER? - -Modulation Error Ratio, It is a measure of how the QAM
signal is received. Similar to a target for a bow and arrow, a perfect hit would
be dead center with no varying points askew. This is literally represented in a
constellation view.
, -What is BER? - -Bit Error Rate, It is the number of bit errors per stream of
bits. This is found by dividing the number of errors by the number of bits
sent. This is also known as the quality of signal being transmitted. In the bow
and arrow analogy, BER is represented by the arrow.
-What is the MER range amount to pass on the meter? - -33-51 dBmV
-What is the ideal measurement for BER? - -1.0E-9
-What is ingress? - -Unwanted signal leaking into the cable due to service
issues or faulty equipment
-What is egress? - -When signal leaks out due to a break, tear, or
loose/improper fittings
-What is the maximum ingress that can be measured and still pass on the
meter? What is the ideal amount? - --35dBmV is the max, -51dBmV is the
ideal
-What is the range of levels that your CPE can fall at, in terms of power, and
still pass? - --10 to 12dBmV
-When will a transmit level fail on the meter? - -51dBmV
-What is the RG-6 bend radius? - -5"
-What is the RG-11 bend radius? - -8"
-How can you bond to mobile homes? - -You can bond to the mobile home
itself if needed.
-What color tags are required for a working, active tap? - -White address
tags and White Active Service tags
-What are the length ranges for all types of Coax? - -RG-6 is used for 1-
150ft installs
RG-11 is used for 151-250ft installs
Flex-500 is used for 251-400ft installs and requires supervisor approval
-What are the 4 bonding methods in order from most to least preferred? - -
1. To the Intersystem Bonding Terminal
2. To the electric service bonding rod
3. To a metal conduit with a bond wrap
4. To the meter box with a clamp
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