Term
| temp of a given device increases or decreases the electron activity does the same producing more or less noise. what is this definition? |
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Definition
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Term
| high pass filters are used to quiet noise ret on to our system from within a cust house. where can low pass filters be found? |
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Definition
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Term
| which of the following is a true statement of a return amp |
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Definition
| its bandwidth ranges from 5-42mhz |
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Term
| what provides a single common infrastructure in which all services are delivered via IP over a consistent transport and routing architecture? |
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Definition
| CRAN (converge regional area network) |
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Term
| if your working on a bad BER problem at the CPE and check the ground blk and it does not show the bad BER what would your conclusion be |
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Definition
| problem is bet the CPE and ground block |
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Term
| when making a hard line connection the center conductor should be cut to make this type of angle? |
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Definition
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Term
| what is the max amount of allowable noise leaving a customers home? |
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Definition
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Term
| which best describes a following ghost |
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Definition
| at the left of the picture caused by reflection |
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Term
| which describes a leading ghost |
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Definition
| at the right of the pic cause by direct pick up |
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Term
| 750mhz you lose 5.5db per every 100ft. 55mhz you lose 1.5 per every 100ft. what is my total attenuation if you have 200' of cable a DC9 and a two way splitter inline? |
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Definition
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Term
| what is the function of a diplex filter |
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Definition
| splits the return and foward signal in an amp |
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Term
| what is used by the AGC circuitry of an amp to maintian a constant output level with changes in input levels |
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Definition
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Term
| what is the method where additional data bits are added to the digital video bit stream to help identify and correct any errors that my be caused by the transmission system |
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Definition
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Term
| it measures AC,DC current and resistance in ohms |
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Definition
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Term
| what part of an amp is sometimes referred to as the motherboard |
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Definition
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Term
| on an as built map the symbol for a 20 value 4 port tap would be indicated by the number 20 inside what shape |
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Definition
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Term
| what measurement is used to find the ratio of the error power to the average power in an ideal QAM sig, its an early indicator of channel impairment, comparable to sig to noise measurement made in analog systems |
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Definition
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Term
| what is the unit of measurement used for describing the wavelengths of light, it is equal to one billionth of a meter |
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Definition
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Term
| pad number, power supply number, amp number, reverse output level and AC voltage are some of the vital statistics needed to work on an amp. where do you find this vital information |
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Definition
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Term
| what part of the backbone is a nationwide video/voice distribution network that carries Comcast traffic from CRAN to CRAN |
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Definition
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Term
| what separates or combines AC power and RF sig in an amp |
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Definition
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Term
| in fiber optics what is the pathway used for actual light transmission |
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Definition
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Term
| excessive DC current draw or the degradation of the power packs filter capacitors will result in what type of system problem |
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Definition
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Term
| what is the ability to carry and individually select different channels on a single cable by their unique frequency |
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Definition
| FDM ( Frequency Div multiplexing ) |
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Term
| the return path in our HFC system is what? |
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Definition
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