Spectrum Field Technician 1 Test 2024-solved

Spectrum Field Technician 1 Test 2024-solved Decibel (dB) - Answer ️️ -Relative # of signal gain or loss through a device or cable. Decibel millivolt (dBmV) - Answer ️️ -Absolute # of signal strength. Foreign voltage detector (FVD) - Answer ️️ -Detects unwanted voltage on cables/strands; test on plastics too. Data Over Cable Service Interface Specification (DOCSIS) - Answer ️️ -The international standard for adding high-bandwidth data to an existing cable system. What does SAFE stand for? - Answer ️️ -Stop. Assess. Focus. Eliminate. What does NCP stand for? - Answer ️️ -Next. Channel. Pointer. What does SLM stand for? - Answer ️️ -Signal. Level. Meter. What is a signal level meter? - Answer ️️ -Tool used to run multiple tests involving signal level, MER, BER and noise level. What does CNR stand for? - Answer ️️ -Carrier to Noise Ratio. What is the purpose of CNR? - Answer ️️ -Comparing level of desired signal to level of background noise. What is Hum modulation? - Answer ️️ -The distortion of both cable video and audio. How can you identify video hum? - Answer ️️ -Visually seeing single (60Hz) or double (120Hz) horizontal bars rolling slowly up from bottom to top of television. How can you identify audio hum? - Answer ️️ -By physically hearing a buzzing sound. what does BER stand for and what does it do? - Answer ️️ -Bit. Error. Ratio. Overall measure of data quality of the received bit stream. Consequences of BER (2 things). - Answer ️️ -1.) Video: picture fails 2.) Data: loss of dial tone What is the max length of a ground wire? - Answer ️️ -20 feet (want the wire as short as possible). What causes high BER (3 things)? - Answer ️️ -1.) Ingress: poor connections 2.) Distortion: undesired change in electrical signal