Field tech 1 Exam 2026 Questions and
Answers
Upstream frequency ranges - Correct answer-between 5Mhz and 42Mhz
Downstream frequency ranges - Correct answer-Between 50MHz 860MHz
Upstream frequency ranges - Correct answer-5MHz and 42 MHz
A 6 MHz downstream channel can hold - Correct answer-2-4 hd channels or 8-12
standard definition channels
Egress - Correct answer-When a signal leaks out of a cable
Ingress - Correct answer-when a signal leaks into a cable
Field technicians are responsible from - Correct answer-The tap to the CPE
(customer premise equipement)
The most preferred BER is measured in ________ and is shown as _______ -
Correct answer-Billions, 1.0E-09
The headend - Correct answer-Is the master facility for distributing signals over a
cable television system
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,Charter passing modem receive levels (Rx) - Correct answer-between -10dBmv
and +12dBmv
Charter passing modem transmit levels (Tx) - Correct answer-between 35dBmv
and 50dBmv
Charter passing MER - Correct answer-35dBmv
HD channels - Correct answer-around 10Mbps each
standard definition channels - Correct answer-around 3-4Mbps each
QAM (qaudarature apmlitude modulation) - Correct answer-two amplitude
modulated waveforms at the same frequency that are phase shifted by 90 degrees
QPSK (qaudrature phase shift keying) - Correct answer-16 QAM, 64 QAM, and
256 QAM are all exapmples of QAM modulation.
RF loss or gain - Correct answer-is a relative measurement and is measured in dB
(decibels)
RF measurements that are read from a meter are - Correct answer-absolute
measurements and are measured in dBmV (decibels per millivolts)
Analog signal loss - Correct answer-is often gradual and reduces signal slowly
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, Digital signal loss - Correct answer-sudden where very small margin exists for
difference between a good picture and no picture (called the cliff effect)
FM radio stations - Correct answer-found between frequencies 88 MHz and 108
MHz
frequency - Correct answer-number of fully completed cycles per second
Hertz - Correct answer-one complete cycle
MHz (megahertz) - Correct answer-refers to millions of cycles per second
700 Mhz - Correct answer-700 million hertz
CATV, cable plant, or tight system - Correct answer-is a closed system where rf
energy must be contained
Signal leakage meters - Correct answer-typically have antennas and are used to
find leaks in the plant. rubber ducky, dipole, and near field antennas
1 milivolt measured across 75 Ohms - Correct answer-0 dBmV
characteristic impedance of cable - Correct answer-75 Ohms
Impedance mismatches - Correct answer-refer to defects within the plant, such as
kinks , cuts, bends, water damage, and poor installation (bad fitings/ terminators.)
Line toner/ multimeter - Correct answer-assist in identifying lines
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Answers
Upstream frequency ranges - Correct answer-between 5Mhz and 42Mhz
Downstream frequency ranges - Correct answer-Between 50MHz 860MHz
Upstream frequency ranges - Correct answer-5MHz and 42 MHz
A 6 MHz downstream channel can hold - Correct answer-2-4 hd channels or 8-12
standard definition channels
Egress - Correct answer-When a signal leaks out of a cable
Ingress - Correct answer-when a signal leaks into a cable
Field technicians are responsible from - Correct answer-The tap to the CPE
(customer premise equipement)
The most preferred BER is measured in ________ and is shown as _______ -
Correct answer-Billions, 1.0E-09
The headend - Correct answer-Is the master facility for distributing signals over a
cable television system
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Charter passing modem receive levels (Rx) - Correct answer-between -10dBmv
and +12dBmv
Charter passing modem transmit levels (Tx) - Correct answer-between 35dBmv
and 50dBmv
Charter passing MER - Correct answer-35dBmv
HD channels - Correct answer-around 10Mbps each
standard definition channels - Correct answer-around 3-4Mbps each
QAM (qaudarature apmlitude modulation) - Correct answer-two amplitude
modulated waveforms at the same frequency that are phase shifted by 90 degrees
QPSK (qaudrature phase shift keying) - Correct answer-16 QAM, 64 QAM, and
256 QAM are all exapmples of QAM modulation.
RF loss or gain - Correct answer-is a relative measurement and is measured in dB
(decibels)
RF measurements that are read from a meter are - Correct answer-absolute
measurements and are measured in dBmV (decibels per millivolts)
Analog signal loss - Correct answer-is often gradual and reduces signal slowly
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, Digital signal loss - Correct answer-sudden where very small margin exists for
difference between a good picture and no picture (called the cliff effect)
FM radio stations - Correct answer-found between frequencies 88 MHz and 108
MHz
frequency - Correct answer-number of fully completed cycles per second
Hertz - Correct answer-one complete cycle
MHz (megahertz) - Correct answer-refers to millions of cycles per second
700 Mhz - Correct answer-700 million hertz
CATV, cable plant, or tight system - Correct answer-is a closed system where rf
energy must be contained
Signal leakage meters - Correct answer-typically have antennas and are used to
find leaks in the plant. rubber ducky, dipole, and near field antennas
1 milivolt measured across 75 Ohms - Correct answer-0 dBmV
characteristic impedance of cable - Correct answer-75 Ohms
Impedance mismatches - Correct answer-refer to defects within the plant, such as
kinks , cuts, bends, water damage, and poor installation (bad fitings/ terminators.)
Line toner/ multimeter - Correct answer-assist in identifying lines
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
