Field tech 1: Final Exam with All Correct
Answers|| GRADED A+|| LATEST UPDATE
2026
Upstream frequency ranges -CORRECTANSWER between 5Mhz and 42Mhz
Downstream frequency ranges -CORRECTANSWER Between 50MHz 860MHz
Upstream frequency ranges -CORRECTANSWER 5MHz and 42 MHz
A 6 MHz downstream channel can hold -CORRECTANSWER 2-4 hd channels or 8-12
standard definition channels
Egress -CORRECTANSWER When a signal leaks out of a cable
Ingress -CORRECTANSWER when a signal leaks into a cable
Field technicians are responsible from -CORRECTANSWER The tap to the CPE
(customer premise equipement)
The most preferred BER is measured in ________ and is shown as _______ -
CORRECTANSWER Billions, 1.0E-09
,The headend -CORRECTANSWER Is the master facility for distributing signals over a
cable television system
Charter passing modem receive levels (Rx) -CORRECTANSWER between -10dBmv
and +12dBmv
Charter passing modem transmit levels (Tx) -CORRECTANSWER between 35dBmv
and 50dBmv
Charter passing MER -CORRECTANSWER 35dBmv
HD channels -CORRECTANSWER around 10Mbps each
standard definition channels -CORRECTANSWER around 3-4Mbps each
QAM (qaudarature apmlitude modulation) -CORRECTANSWER two amplitude
modulated waveforms at the same frequency that are phase shifted by 90 degrees
QPSK (qaudrature phase shift keying) -CORRECTANSWER 16 QAM, 64 QAM, and
256 QAM are all exapmples of QAM modulation.
RF loss or gain -CORRECTANSWER is a relative measurement and is measured in dB
(decibels)
, RF measurements that are read from a meter are -CORRECTANSWER absolute
measurements and are measured in dBmV (decibels per millivolts)
Analog signal loss -CORRECTANSWER is often gradual and reduces signal slowly
Digital signal loss -CORRECTANSWER sudden where very small margin exists for
difference between a good picture and no picture (called the cliff effect)
FM radio stations -CORRECTANSWER found between frequencies 88 MHz and 108
MHz
frequency -CORRECTANSWER number of fully completed cycles per second
Hertz -CORRECTANSWER one complete cycle
MHz (megahertz) -CORRECTANSWER refers to millions of cycles per second
700 Mhz -CORRECTANSWER 700 million hertz
CATV, cable plant, or tight system -CORRECTANSWER is a closed system where rf
energy must be contained
Answers|| GRADED A+|| LATEST UPDATE
2026
Upstream frequency ranges -CORRECTANSWER between 5Mhz and 42Mhz
Downstream frequency ranges -CORRECTANSWER Between 50MHz 860MHz
Upstream frequency ranges -CORRECTANSWER 5MHz and 42 MHz
A 6 MHz downstream channel can hold -CORRECTANSWER 2-4 hd channels or 8-12
standard definition channels
Egress -CORRECTANSWER When a signal leaks out of a cable
Ingress -CORRECTANSWER when a signal leaks into a cable
Field technicians are responsible from -CORRECTANSWER The tap to the CPE
(customer premise equipement)
The most preferred BER is measured in ________ and is shown as _______ -
CORRECTANSWER Billions, 1.0E-09
,The headend -CORRECTANSWER Is the master facility for distributing signals over a
cable television system
Charter passing modem receive levels (Rx) -CORRECTANSWER between -10dBmv
and +12dBmv
Charter passing modem transmit levels (Tx) -CORRECTANSWER between 35dBmv
and 50dBmv
Charter passing MER -CORRECTANSWER 35dBmv
HD channels -CORRECTANSWER around 10Mbps each
standard definition channels -CORRECTANSWER around 3-4Mbps each
QAM (qaudarature apmlitude modulation) -CORRECTANSWER two amplitude
modulated waveforms at the same frequency that are phase shifted by 90 degrees
QPSK (qaudrature phase shift keying) -CORRECTANSWER 16 QAM, 64 QAM, and
256 QAM are all exapmples of QAM modulation.
RF loss or gain -CORRECTANSWER is a relative measurement and is measured in dB
(decibels)
, RF measurements that are read from a meter are -CORRECTANSWER absolute
measurements and are measured in dBmV (decibels per millivolts)
Analog signal loss -CORRECTANSWER is often gradual and reduces signal slowly
Digital signal loss -CORRECTANSWER sudden where very small margin exists for
difference between a good picture and no picture (called the cliff effect)
FM radio stations -CORRECTANSWER found between frequencies 88 MHz and 108
MHz
frequency -CORRECTANSWER number of fully completed cycles per second
Hertz -CORRECTANSWER one complete cycle
MHz (megahertz) -CORRECTANSWER refers to millions of cycles per second
700 Mhz -CORRECTANSWER 700 million hertz
CATV, cable plant, or tight system -CORRECTANSWER is a closed system where rf
energy must be contained
