Spectrum Field Tech Exam Questions and Answers | Updated 2026

Spectrum Field Tech Exam Questions and Answers | Updated 2026 Current/ amperage - answer-Flow or movement of electric charges Resistor - answer-a passive two-terminal material that impedes the flow of current What is the most common workplace hazard involving electricity? - answer-Electrical shocks What is minimum approach distance? - answer-The shortest safe distance to keep from energized conductors CATV at the pole - answer-40'' CATV at the mid-span - answer-24'' CATV at the house - answer-12'' Live parts of electric equipment must be guarded against at how many volts? - answer-50 volts What are the 2 kinds of grounds required by Safety standards for electrical systems? - answerService and EquipmentWhat are circuit protection devices designed to do? - answer-Automatically limit or shift off the flow of electricity in the event of a ground fault, overload, or short circuit in the wiring system OSHA - answer-Occupational Safety and Health Administration CATV - answer-Community Antenna Television HFC - answer-Hybrid Fiber Coax What are the four sources of signals? - answer-Satellite, local origination, off air, fiber optics Forward - answer-54 MHz-1 GHz G.B. - answer-Guard Band Return - answer-5-42 MHz Downstream (forward path) - answer-Forward signal from the headend to a customer Upstream (reverse path) - answer-Return signal from a customer to the headend Signal frequency - answer-Number of times that an RF signal completes a cycle from a positive value to a negative value and back in one second Ultrasonic frequencies are higher than what? - answer-Audio Infrasonic frequencies are below what? - answer-AudioHow many hertz can the human ear hear? - answer-20-20,000 Per NTSC requirements, what is a tv channels bandwidth? - answer-6MHz FCC (Federal Communications Commission) - answer-Gov agency responsible or regulating and assigning frequencies throughout the US HFC distributes what? - answer-Broadband signals through a network of various elements Nodes - answer-Convert the light signals from the headend into radio frequency signals for delivery to customer Ingress signal leakage TV: - answer-Lines in picture, ghosting, pay per view problems, scrambling problems Ingress signal leakage Internet: - answer-Lack of internet access, lack of internet access, lack of email services, data problems Ingress signal leakage Voice - answer-Telephone call failures (incoming and out coming) QAM (quadrature amplitude modulation) - answer-Is both an analog and digital modulation scheme used for transmitting digital data as an analog signal by using a carrier split into 2 carriers of identical frequency phase shifted 90 degrees apart How many programming channels can digital signals have within a 6 MHz space? - answer-12 CLI - answer-Cumulative Leakage IndexWhat are charters technical standard for 256 QAM and OFDM carries at CPE? - answer-34 dB or better BER - answer-bit error rate Post BER - answer-1.0e-9 Pre BER - answer-1.0e-6 FEC - answer-Forward Error Correction SLM - answer-Signal Level Meter CNR - answer-Carrier to Noise Ratio Hum Modulation - answer-The amplitude distortion of broadband cable video and audio carriers by 60 Hz or 120 Hz voltage