Spectrum Field Technician Onboarding
Final Exam Questions and Answers
Ohm's Law Equation for RG-6 - CORRECT ANSWER ->>34.1Ω per 1000ft; .0341Ω per foot
Ohm's Law Equation for RG-11 - CORRECT ANSWER ->>16.1Ω per 1000ft; .0161Ω per foot
What is the clearance required for our drops to be from power at the pole? - CORRECT ANSWER ->>40"
What is the clearance required for our drops to be from phone at the pole? - CORRECT ANSWER ->>12"
What is the clearance required for our drops to be from power at the house? - CORRECT ANSWER -
>>12"
What is the clearance required for our drops to be from phone at the house? - CORRECT ANSWER ->>4"
How far above a residential walkway does our drop have to be? - CORRECT ANSWER ->>9'6"
How far above a residential driveway does our drop have to be? - CORRECT ANSWER ->>11'6"
How far above a public road does our drop have to be? - CORRECT ANSWER ->>15'6"
How far above a public highway or interstate does our drop have to be? - CORRECT ANSWER ->>18'
What is the sag ratio for aerial drops? - CORRECT ANSWER ->>6" per 50ft of coax
How far does a Q-clamp have to be from the center of the pole? - CORRECT ANSWER ->>24"
How far does a Q-clamp have to be from the tap? - CORRECT ANSWER ->>6"
, At what point does the FVD audibly tone? - CORRECT ANSWER ->>50 volts
What is the downstream/Rx bandwidth range? - CORRECT ANSWER ->>50-860 mHz
What is the upstream/Tx bandwidth range? - CORRECT ANSWER ->>5-42 mHz
What is MER? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>33-51 dBmV
What is the ideal measurement for BER? - CORRECT ANSWER ->>1.0E-9
What is ingress? - CORRECT ANSWER ->>Unwanted signal leaking into the cable due to service issues or
faulty equipment
What is egress? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>-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? - CORRECT
ANSWER ->>-10 to 12dBmV
When will a transmit level fail on the meter? - CORRECT ANSWER ->>51dBmV
Final Exam Questions and Answers
Ohm's Law Equation for RG-6 - CORRECT ANSWER ->>34.1Ω per 1000ft; .0341Ω per foot
Ohm's Law Equation for RG-11 - CORRECT ANSWER ->>16.1Ω per 1000ft; .0161Ω per foot
What is the clearance required for our drops to be from power at the pole? - CORRECT ANSWER ->>40"
What is the clearance required for our drops to be from phone at the pole? - CORRECT ANSWER ->>12"
What is the clearance required for our drops to be from power at the house? - CORRECT ANSWER -
>>12"
What is the clearance required for our drops to be from phone at the house? - CORRECT ANSWER ->>4"
How far above a residential walkway does our drop have to be? - CORRECT ANSWER ->>9'6"
How far above a residential driveway does our drop have to be? - CORRECT ANSWER ->>11'6"
How far above a public road does our drop have to be? - CORRECT ANSWER ->>15'6"
How far above a public highway or interstate does our drop have to be? - CORRECT ANSWER ->>18'
What is the sag ratio for aerial drops? - CORRECT ANSWER ->>6" per 50ft of coax
How far does a Q-clamp have to be from the center of the pole? - CORRECT ANSWER ->>24"
How far does a Q-clamp have to be from the tap? - CORRECT ANSWER ->>6"
, At what point does the FVD audibly tone? - CORRECT ANSWER ->>50 volts
What is the downstream/Rx bandwidth range? - CORRECT ANSWER ->>50-860 mHz
What is the upstream/Tx bandwidth range? - CORRECT ANSWER ->>5-42 mHz
What is MER? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>33-51 dBmV
What is the ideal measurement for BER? - CORRECT ANSWER ->>1.0E-9
What is ingress? - CORRECT ANSWER ->>Unwanted signal leaking into the cable due to service issues or
faulty equipment
What is egress? - CORRECT ANSWER ->>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? - CORRECT ANSWER ->>-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? - CORRECT
ANSWER ->>-10 to 12dBmV
When will a transmit level fail on the meter? - CORRECT ANSWER ->>51dBmV
