Description : Which of the following coaxial cable connectors is called the UHF connector? A. PL-259 B. BNC C. N-type connector D. F connector
Last Answer : A. PL-259
Description : Which coaxial connector is a more complex and expensive but do a better job in maintaining the electrical characteristics of the cable through the interconnections? A. N-type connector B. F-type connector C.BNC D. PL-259
Last Answer : A. N-type connector
Description : Which coaxial cable connector is least expensive and is widely used for TV sets,VCRs and cable TV? A. N-type connector B. F-type connector C. BNC D. PL-259
Last Answer : B. F-type connector
Description : Which type of connector does a Ethernet cable use? (a) BNC (b) RJ_45 (c) RJ_11 (d) MSAU -Technology
Last Answer : (b) RJ-45 most commonly used to connect computers onto Ethernet-based local area network.
Description : When referring to spectrum analyzers, what is meant by the term resolving signals?
Last Answer : The ability of the analyzer to discriminate between display signals of slightly different frequencies.
Description : What is the channel number of an FM station with a carrier frequency of 99.5 MHz? A. 256 B. 258 C. 257 D. 259
Last Answer : B. 258
Description : Which of the following is a type of fiber connector: a. ST b. SC c. SMA d. all of the above
Last Answer : d. all of the above
Description : What frequency band is referred to as the metric waves? A. VHF B. UHF C. HF D. SHF
Last Answer : A. VHF
Description : What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave
Last Answer : D. A frequency modulated continuous wave
Description : Assuming a UHF frequency range of 405.0125 MHz to 405.0875 MHz at 25 kHz channeling plan, how many channels can you produce? A. 2.5 ch. B. 2 ch. C. 4 ch. D. 3 ch.
Last Answer : D. 3 ch.
Description : Which frequency band is the standard AM radio broadcast? A. HF B. UHF C. MF D. VHF
Last Answer : C. MF
Description : In what range of frequencies are most omnidirectional horizontally polarized antennas used? A. VHF, UHF B. VLF, LF C. SH, EHF D. MF, HF
Last Answer : A. VHF, UHF
Description : Which band does channel 14 of the television channel belong? A. High VHF band B. EHF band C. UHF band D. Low VHF band
Last Answer : C. UHF band
Description : Channel 7 of the regular television channel belongs to which band? A. Low VHF band B. High VHF band C. Low UHF band D. High UHF band
Last Answer : B. High VHF band
Description : TV channels 2, 4 and 5 are known as ________. A. Mid band UHF B. Low band UHF C. High band VHF D. Low band VHF
Last Answer : D. Low band VHF
Description : Troposheric scatter uses the frequencies in the ________ band. A. VLF B. UHF C. VHF D. UF
Last Answer : B. UHF
Description : When was the UHF channel (14-83) of television were added? A. 1852 B. 1904 C. 1947 D. 1952
Last Answer : D. 1952
Description : How far is the visual carrier from the lowest frequency in the spectrum of a monochrome TV broadcast channel following the NTSC standard? A. 1.5 MHz B. 1.25 MHz C. 4.5 MHz D. 0.25 MHz
Last Answer : B. 1.25 MHz
Description : What term is used to describe a spread spectrum communications system in which a very fast binary bit stream is used to shift the phase of an RF carrier? A. Frequency hopping B. Direct sequence C. Binary phase-shift keying D. Phase compandored spread spectrum
Last Answer : B. Direct sequence
Description : What is the term used to describe a spread spectrum communications system where the center frequency if a conventional carrier is altered many time per second in accordance with a pseudo ... hopping B. Direct sequence C. Time-domain frequency modulation D. Frequency compandored spread spectrum
Last Answer : A. Frequency hopping
Description : Determine from the following radio frequency that falls under the very high frequency band of the radio spectrum. A. 345.00 MHz B. 144.50 MHz C. 235.50 MHz D. 450.00 MHz
Last Answer : C. 235.50 MHz
Description : The extremely high frequency (EHF) band is in the radio spectrum range of _______. A. 30 to 300 kHz B. 30 to 300 GHz C. 3 to 30 MHz D. 3 to 30 GHz
Last Answer : B. 30 to 300 GHz
Description : A radio frequency in the ultra high frequency band of the radio spectrum band. A. 235.50 MHz B. 450.50 MHz C. 150.50 GHz D. 0.31250 GHz
Last Answer : D. 0.31250 GHz
Description : Which of the following fall under the high frequency band of the radio spectrum? A. 8.2345 MHz B. 150.50 MHz C. 2.4555 MHz D. 35.535 MHz
Last Answer : A. 8.2345 MHz
Description : The method of determining the bandwidth of any processing system is ______. A. Bandwidth analysis B. Frequency spectrum C. Spectral analysis D. Frequency analysis
Last Answer : C. Spectral analysis
Description : The frequency spectrum of the stereophonic FM signal. A. 67 kHz B. 59.5 to 74.5 kHz C. 19 to 38 kHz D. 30 to 53 kHz
Last Answer : D. 30 to 53 kHz
Description : What is the insertion loss of connector-type splices for a single mode fiber optics? a. 0.51dB b. 0.31dB c. 0.49dB d. 0.38dB
Last Answer : d. 0.38dB
Description : What is the insertion loss of connector type splices for a single mode optical fiber? A. 0.51 dB B. 0.49 dB C. 0.31 dB D. 0.38 db
Last Answer : D. 0.38 db
Description : Insertion loss of connector-type splices for a single-mode fiber cable. A. 0.2 dB B. 0.3 dB C. 0.09 dB D. 0.38 dB
Last Answer : D. 0.38 dB
Description : ___________ is a device in data transmission to interface data terminal equipment to an analogue transmission line. A. RS 232 B. Connector C. Modem D. RJ-11 plug
Last Answer : C. Modem
Description : hat establishes the value of the current that flows in the output of figure 4-43?
Last Answer : The frequency of the voltage input.
Description : The DME counters are rotating continuously. This indicates that: a. The DME is unserviceable b. The DME is trying to lock onto range c. The DME is trying to lock onto frequency d. The DME is receiving no response from the ground station
Last Answer : b. The DME is trying to lock onto range
Description : The frequency band of the ILS glidepath is: a. UHF b. VHF c. SHF d. VLF
Last Answer : a. UHF
Description : Which frequency band is a wavelength of 1200m? a. UHF b. LF c. HF d. MF
Last Answer : b. LF
Description : What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band? w) 3 to 30 Mega Hertz x) 30 to 300 Mega Hertz y) 300 to 3,000 Mega Hertz z) 30,000 to 300,000 Mega Hertz
Last Answer : ANSWER: Y -- 300 to 3,000 MEGA HERTZ
Last Answer : Frequency in the UHF range propagate by means of Space waves.
Description : Oscilloscopes are used to measure what quantities?
Last Answer : Amplitude, phase, time, and frequency.
Description : List the circuits that all oscilloscopes have in common.
Last Answer : A CRT, a group of control circuits, power supply, sweep circuitry, and deflection circuitry.
Description : Types of oscilloscopes that are able to retain the display for a longer period of analysis. This display is retained by the use of flood gun.
Last Answer : storage oscilloscope
Description : A pattern displayed by oscilloscopes which has a steady characteristic is called
Last Answer : Lissajous
Description : Which of the following is not part of the optical spectrum? a. Infrafed b. Ultraviolet c. Visible color d. X-rays
Last Answer : d. X-rays
Description : What is the spectrum of stereophonic FM signal? A. 19 to 38 kHz B. 30 to 53 kHz C. 59.5 to 74.5 kHz D. 88 to 108 MHz
Last Answer : B. 30 to 53 kHz
Description : What is the spectrum range of U600 mastergroup? A. 60 – 108 kHz B. 564 – 3084 kHz C. 312 – 552 kHz D. 60 -2788 kHz
Last Answer : B. 564 – 3084 kHz
Description : What device measures rf power by measuring the heat the rf power generates? A. Calorimeter B. Goniometer C. Spectrum meter D. Oscilloscope
Last Answer : A. Calorimeter
Description : How many voice signals (4 kHz max.) would fit into a 5 MHz spectrum? A. 1250 B. 500 C. 1000 D. 1500
Last Answer : A. 1250
Description : Where does the AM broadcast band located in the spectrum band? A. HF band B. VHF band C. LF band D. MF band
Last Answer : D. MF band
Description : How wide is the spectrum bandwidth of a single GSM carrier? A. 100 kHz B. 200 kHz C. 50 kHz D. 16 kHz
Last Answer : B. 200 kHz
Description : Which tester is used to measure SWR? A. Spectrum analyzer B. Multimeter C. Reflectometer D. Oscilloscope
Last Answer : C. Reflectometer
Last Answer : Barrel Nut Connector
Description : What components can use the NEC BNCACABLE BNC Component Video Adapter?
Last Answer : This cable seems to have little function beyond use in NEC video projectors.It's a male HD-15 VGA connector on one end with a 12" cable connecting to a male 5-wire RGBHV BNC connection on the other end.The latter seems to be only used in NEC projectors..