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A Decibel is one tenth of a bel |
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. What is the unit for expressing, in logarithmic terms the ratio between two power levels |
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. "blank" is the force that cause electrons to flow |
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Resistance is measured in |
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The purpose of equalizers used in an Amp is to? |
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Compensate for the cable loss |
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"Blank" is the measuring of analog signals at specific intervals |
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The definition of ingress is |
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unwanted signals entering the cable plant |
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multitude of unwanted signals entering the cable plant |
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Vertical bar moving slightly across the video portion of a cable channel |
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A discontinuous signal whose various states are discrete intervals apart |
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A device used to convert analog signal to a digital signal |
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Refers to an electrical impulse representing a zero or 1(smallest unit of measurement a pc can handle) |
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A set of Bits, typically 8 but can be more |
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The number of changed events or states that occur per Hertz |
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Sampling, Quantization, and encoding is the process of |
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Analog to digital conversion |
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Assigning a specific value to each of the samples |
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the process of converting these specific values into data |
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AM is the means of superimposing "blank" onto a RF carrier |
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"blank" is the means of superimposing audio on a RF carrier on a specific Frequency |
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One of the most common impairments in a cable system |
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"blank" is typically caused by Power Passing Chokes or a Capacitor leak |
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"Blank" is the over driving of an amplifier or laser circuits |
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"Blank" is a simple indicator of the overall quality of the quam digital stream |
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DQI(digital quality index) |
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"Blank" is used to compensate for the fluctuations in the input signal |
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AGC(automatic Gain Control) |
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Vertical bar moving slightly across the video portion of the cable channel |
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The assigning of a specific value to each of the samples |
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Interference such as voice of America CB and amateur radio transmitters are |
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The distance between two points of like phase in a wave |
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Philosophy where the loss of the cable and other passive devices before a amplifier station equal the gain of the amplifier station |
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This is the peak value of an AC waveform |
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Data over cable services interface specifications |
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Number of timeouts caused by the router not receiving a response within a specified time from the CMTS to a ranging request |
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In the upstream is time slot management |
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In the upstream is code management |
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Passive device that splits the signal into two transmission lines in parallel |
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Tool used to measure signal levels at specific tunable frequencies |
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This tool uses a dipole antenna to detect a signal leak and determine its direction |
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This tool accurately measures AC voltages of signals other than pure analog sine waves |
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This tool is used to find the location/path of underground cables |
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This is a set of rules that govern how devices message each other to transport data |
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This tool provides a real time snapshot, and maps all aspects of the network including, power and facilities |
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This function checks forward low and high frequencies, based on these readings you can choose and equalizer pad that will provide optimum flatness at the end of the line |
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In this mode your meter monitors up to 12 channels at a time |
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