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30 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The BLANK is the RF power level impinging on the receiver antenna. It would be the power we measure at the base of an Isotropic Antenna. |
IRL |
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The BLANK is the power level at the input port of the first active stage in the receiver. |
RSL |
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Which of the following antenna feedline can be buried underground for a distance without adverse effects? |
Coaxial Cable |
Waveguide Coaxial Cable Twisted Pair Twin Lead |
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In the study of wave propagation, a condition at which zero absoption of radio waves is described as BLANK medium. |
Free Space |
Zero Reflection Free Space Neutral Non-Active |
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The process of exchanging predetermined codes and signals in telecommunications between two data terminals to establish a connection is called BLANK. |
Hand Shake |
Hand Off Hand Shake Polling Demodulation |
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A pass from north to south of a satellite in orbit is called BLANK pass. |
Descending |
Ascending Retrograde Prograde Descending |
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A network interconnection facility which is used to interconnect networks whose architectures are entirely different is called BLANK. |
Gateway |
Bridge Gateway Router Repeater |
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What type of multichannel signal transmission in optic fiber communication uses a twisted pair coupler to transmit two signals of different wavelength? |
FDM |
FDM WDM TDM PCM |
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What ferrite device can be used instead of a duplexer to isolate a microwave transmitter and receiver when both are connected to the same antenna? |
Circulator |
Isolator Magnetron Circulator Simplex |
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What is the function of the network layer in computer communications? |
Congestion control |
Parity control Congestion control Direction control Error control |
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What do you call the repeater inside a communication satellite? |
Transponder |
Transponder Detector Station Modulator |
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A mobile telephone system which uses an analogue cellular radio standard which eas superceded by the Advanced Mobile Phone System in US. |
IMTS |
TDMA CDMA IMTS D-AMPS |
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One of the following can be best attained by a trap antenna in radio communications. |
Multi frequency band operation |
Increase transmitter gain Effective filter to noise signal Directionality Multi frequency band operation |
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What is the main component of a dummy antenna? |
A non-inductive resistor |
A wire wound resistor A non inductive resistor Iron core Air core |
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Average rate of transmission of sound energy in a given direction through a cross section area of 1 sq.m. at right angles. |
Sound intensity |
Sound intensity Echo Sound power Reverberation |
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A concept that embracres the integration of voice, video, data for the high speed digital communications and includes it as part of its conceptual framework |
Fast packet concept |
Speed packet concept Responsive concept Fast pocket concept All of the above |
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BLANK dispersion is cause by the difference in the propagation times of light rays. |
Modal |
Modal Incidental Index Aliasing |
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Is a connection oriented network service that is implemented on top of a network... either connected or connectionless. |
Virtual |
Real Virtual Common UHF |
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Asynchronous trasfer mode, refers to the variation in delay from one to another cell. |
Cell jitter |
Cell delay Cell distortion Cell aliasing Cell jitter |
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In fiber optics, the light receiver specification that has the same information as the dynamic range is called BLANK power. |
Optical Input |
Optical Input Optical Output Logical Input Logical Output |
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Made of aluminum, iron, silicon used in video recording and player |
Alfecon |
Disk Alfecon Digital Video None |
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As stated in D.O. 88, the operation of any FM radio broadcast station must be under the supervision of a registered ECE if the station has a carrier power that exceeds BLANK |
3W |
1W 2W 3W 4W |
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The main benefit of light wave communication |
Wider Bandwidth |
Fast Wider Bandwidth Uninterruptable All of the above |
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Part of geosynchronous orbit that provides optimum coverage of a country. |
Arc of good |
Arc of bad Arc of good Arc of justice Arc of intel |
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What antenna is composed of two or more half wave dipoles mounted end to end? |
Collinear antenna |
Yagi uda Collinear antenna Trap antenna Parabolic antenna |
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Detects and corrects transmission error at the receiver side. |
FEC |
FEC Hamming codes LRC VRC |
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Voice channels in GSM is called BLANK channel |
Traffic |
Pathway Gateway Field Traffic |
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Form of redunduncy error checking where each chsracter has a numerical value sign. |
Checksum |
Checksum VRC LRC CRC |
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Protects small signal from quantizing noise is |
Companding |
Side bands Companding Guard bands None |
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What is the metal wrapped around the parabolic antenna aperture to eliminate side lobes interfering nearby stations? |
Shroud |
Insulation Metal fixture Protective layer Shroud |
