Term
| The type of auxiliary equipment used for composite video distribution bewteen the camera chain and the transmitter or video display system is determined by the location and nature of the pickup, and the |
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Definition
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Term
| The basic television system consists of what two distinct sections? |
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Definition
| camera and transmission chain |
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Term
| Why were the R-Y and B-Y signals shifted 33 degrees counterclockwise? |
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Definition
| So R-Y was shifted to maximum and B-Y was shifted to minimum color acuity, respectively for human vision |
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Term
| What names are given to the shifted R-Y and B-Y signals, respectively? |
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Definition
| I (in-phase) and Q (quadrature) |
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Term
| In choosing an appropriate subcarrier frequency, the horizontal and vertical frequencies had to be changed slighty. What are the new frequencies? |
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Definition
| 15,734.264 Hz and 59.94 Hz |
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Term
| What digital broadcast system was adopted by the United States as the standard? |
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Definition
| Advanced Television Systems Commitee (ATSC) |
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Term
| What modulation technique is used by the ATSC system? |
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Definition
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Term
| How many lines of video are discarded in high definition 1080 line video encoded with 1920x1088 pixel frames prior to display? |
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Definition
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Term
| One complete video picture consists of how many lines, assuming a 60-Hz power source? |
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Definition
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Term
| A frame of information consists of |
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Definition
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Term
| How many micro seconds is the duration of one line of horizontal scanning? |
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Definition
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Term
| The complex combination of pulses and sine waves that make a television waveform is called |
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Definition
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Term
| How many micro seconds is the time duration of horizontal blanking? |
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Definition
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Term
| What signal synchronizes horizontal line sweeps of the receiver and camera? |
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Definition
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Term
| A continuous radio frequency signal of 3.579545 MHz, used to define phase and amplitude of the coloring information in the video waveform, is called |
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Definition
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Term
| The approximate duration of vertical blanking is |
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Definition
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Term
| What part of the vertical blanking interval contains the VIT and VIR signals? |
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Definition
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Term
| The aural carrier of a station must be maintained to within a tolerance of |
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Definition
| 4.5 MHz +- 1 kHz above the visual carrier |
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Term
| To minimize interference, adjacent-channel TV stations are seperated by at least |
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Definition
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Term
| How many of the three color signals are used to modulate the saturation and hue information as a suppressed carrier quadrature? |
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Definition
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Term
| What color information is transmitted when the camera is scanning black, grey, or white? |
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Definition
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Term
| What is the frequency range of the very high frequency (VHF) band? |
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Definition
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Term
| What is the frequency range of the ultra high frequency (UHF)? |
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Definition
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Term
| Negative transmission helps improve the TV picture by minimizing |
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Definition
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Term
| In negative transmission, sync tip represents what percentage of modulation? |
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Definition
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Term
| At what level is blanking transmitted in refernece to peak-carrier level? |
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Definition
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Term
| Visual and aural transmitters are combined in a device called a |
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Definition
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Term
| Limiting the video-signal sidebands, and overall channel bandwidth to 6 MHz, is called |
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Definition
| vestigial-sideband transmission |
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Term
| What is the Federal Communications Commission requried bandwidth for television channels? |
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Definition
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Term
| What test signal is used in calculating the effective radiated power (ERP) of a TV transmitter? |
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Definition
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Term
| Where in an amplitude modulation transmitter is the intelligence impressed on the carrier? |
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Definition
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Term
| What does the audio frequency of the modulating signal affect in frequency modulation? |
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Definition
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Term
| What is the frequency of the upper sideband when a FM signal is modulated with a 1-kHz audio tone? |
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Definition
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Term
| What is the frequency deviation of a FM TV audio signal at 100 percent modulation? |
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Definition
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Term
| What type of response is achieved by attenuating the higher frequencies of a television signal after demodulation in the receiver? |
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Definition
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Term
| What is the FCC limit on aural transmission power versus visual power? |
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Definition
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Term
| What special component is widely used in transistorized modulators? |
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Definition
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Term
| An intermediate amplifier used to develop the power necessary to run the power amplifier is called the |
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Definition
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Term
| What type of modulation is usually used for microwave transmission of audio and video? |
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Definition
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Term
| In the remodulating microwave transmitter, at what frequency does the transistorzed voltage-controlled oscillator (VCO) typically run? |
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Definition
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Term
| What determines the noise figure in a microwave receiver when no low-noise amplifier is used? |
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Definition
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Term
| What portion of the video bandwidth contains the I and Q sideband components of the suppressed 3.58-MHz subcarrier? |
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Definition
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Term
| What pulses trigger the sawtooth scanning waveform generators? |
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Definition
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Term
| What is the frame frequency of the TV signal? |
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Definition
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Term
| A theoretical antenna that radiates in all directions is called |
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Definition
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Term
| In microwave signal transmission, the ratio of the effective-earth radius to the true-earth radius is called the |
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Definition
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Term
| What process is performed to determine antenna heights for a microwave system? |
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Definition
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Term
| What system has become a backbone for a network television programming in recent years? |
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Definition
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Term
| Satellite transponders primarily operate in what frequency ranges? |
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Definition
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Term
| How large a dish is necessary to receive signals in both satellite bands from international and domestic satellites? |
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Definition
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Term
| What is the beginning of a cabel system called? |
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Definition
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Term
| What component carries the signal to individual subscribers? |
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Definition
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Term
| What is the shortest self-resonant length fro an antenna? |
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Definition
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Term
| Which type of antenna radiates one major lobe? |
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Definition
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Term
| The range of frequencies over which an antenna will operate satisfactorily is called the |
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Definition
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Term
| What type of antenna has a radiation pattern resembling a doughnut? |
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Definition
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Term
| Microwave equipment is connected to the antenna with either waveguide or |
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Definition
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Term
| What are considered typical losses per hundred feet of microwave antenna feeder? |
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Definition
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Term
| What types of fields does current flow in an antenna produce? |
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Definition
| magnetic and electric fields |
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Term
| The strength of the wave radiated from the antenna is expressed in terms of the |
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Definition
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