onload

$(document).ready(function () {
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http://stackoverflow.com/questions/807271/how-to-launch-jquery-fancybox-on-page-load

Impact printer..

Impact printer..

"strikes a ribbon against the paper to produce character image"

what generates a light beam at a specific visible frequency?

what generates a light beam at a specific visible frequency?

"Laser"

what is the frequency limit of an optical fiber?

what is the frequency limit of an optical fiber?

"40 GHz"

single sideband full carrier emission type..

single sideband full carrier emission type..


"H3E"

 Note: to set hyperbolic function in FX-991ES just select [hyp] and select the function that you need",)

Hyperbolic functions - sinh, cosh, tanh, coth, sech, csch

DEFINITION OF HYPERBOLIC FUNCTIONS

Hyperbolic sine of x = sinh x = (e^x - e^-x)/2
Hyperbolic cosine of x = cosh x = (e^x + e^-x)/2
Hyperbolic tangent of x = tanh x = (e^x - e^-x)/(e^x + e^-x)
Hyperbolic cotangent of x = coth x = (e^x + e^-x)/(e^x - e^-x)
Hyperbolic secant of x = sech x = 2/(e^x + e^-x)
Hyperbolic cosecant of x = csch x = 2/(e^x - e^-x)

RELATIONSHIPS AMONG HYPERBOLIC FUNCTIONS

tanh x = sinh x/cosh x
coth x = 1/tanh x = cosh x/sinh x
sech x = 1/cosh x
csch x = 1/sinh x
cosh²x - sinh²x = 1
sech²x + tanh²x = 1
coth²x - csch²x = 1

SSB means?

SSB means?

"Single Sideband with suppressed carrier"

The degree of selectivity desirable in the IF circuitry of a single-sideband receiver..

The  degree of  selectivity desirable in the  IF circuitry of a single-sideband receiver..

"2.4 k Hz"

_____ is a microwave link between the down-town and another out of town terminal.

_____ is a  microwave  link  between  the  down-town  and  another  out  of town  terminal.


"Terrestrial"

Commercial load for radio shall not exceed _____ minutes for one hour program in metro manila..

Commercial load  for  radio  shall  not  exceed  _____ minutes  for  one  hour  program  in metro manila..



"15 "

What filter is used to block light from a laser and let other light through?

What  filter is used  to block  light  from  a  laser  and  let  other  light  through?



"interference"

Digital to analog converter in synchronous modems send signals to the _____

Digital to analog converter in synchronous modems send signals to the  _____



"Equalizer"

nominal voice channel bandwidth is _____.

nominal voice channel bandwidth is _____.



"4 KHz"

Gain of a half-wave dipole antenna over isotropic?

Gain of a half-wave dipole antenna over isotropic?

"2.15 dB"

Amplitude distortion results from ________ amplification.

Amplitude distortion results from ________ amplification.


"Nonlinear"

Note:Amplitude distortion is distortion occurring in a system, subsystem, or device when the output amplitude is not a linear function of the input amplitude under specified conditions. read more...

how many phons are there in 8 tons?

how many phons are there in 8 tons?

"70"

Sound wave has two main characteristics which are :

Sound wave has two main characteristics which are :

"Pitch and Loudness"

Which type of microphone operated by electromagnetic induction that generates an output signal voltage?

Which type of microphone operated by electromagnetic induction that generates an output signal voltage?


"Dynamic"

The main function of the RF amplifier in a superheterodyne receiver is to:

The main function of the RF amplifier in a superheterodyne receiver is to:

" improve the rejection of the image frequency "

The Maximum ground resistance in an equipment isntallation is required by Volume 1 of the Phillippine Electronic Code (Safety Code) is..

The Maximum ground resistance in an equipment installation is  required by Volume 1  of the  Phillippine Electronic Code (Safety Code) is..

"5 ohms"

A carrier signal has _____.

A carrier signal has _____.


"Constant peak amplitude"

The _________ is equal to the number of electrons emitted per second times the electron charge.

The _________ is equal to the number of electrons emitted per second times the electron charge.

"photocurrent"

A band of frequencies 200kHz wide is and is designated by its center frequency.

A band of frequencies 200kHz wide is  and is designated by its center frequency.

"FM broadcast channel"

When the electric flied in waveguide is perpendicular to the direction of wave propagation, the mode is said to be

When the electric flied in waveguide is perpendicular to the  direction of wave propagation, the mode is said to be

"transverse electric"

The method of generating FM used by broadcast station is _______________.

The method of generating FM used by broadcast station is _______________.


"Indirect"

The outer conductor of the coaxial cable is usually grounded

The outer conductor of the coaxial cable is usually grounded



"at the beginning and at the  end of the cable"

read more..

A non-exclusive facility at which the public may, by the payment of appropriate fees, place as well as receive telephone calls or a telegram or other messages.

A non-exclusive facility at which the public may, by the payment of appropriate fees, place as well as receive telephone calls or a telegram or other messages.

"Public Toll Calling Station"

Asynchronous transmission is

Asynchronous transmission is


"Asynchronous transmission is less efficient but simpler"

The most commonly used amplitude demodulator is the ______?

The most commonly used amplitude demodulator is the ________?


"Envelope Detector"

PCM system require _______.

PCM system require _______.

PCM stands for Pulse Code Modulation.PCM technology is a means by which standard audio signals (which are represented by waveforms) are converted to digital audio signals (which are represented by 1's and 0's - much like computer data) with little, or no, compression. The method of audio conversion is used on most digital audio formats, including CDs and DVD-Audio, and is also used to some extent in Blu-ray and HD-DVD applications. The PCM signal is converted back to analog form for distribution to loudspeakers. readmore..

 Therefore i conclude that PCM system require "large bandwith"

What is an Erlang?

What is an Erlang?

"it is equal to the number of simultaneous calls originated during  a specific hourly period"

A waveguide is also known as...

A waveguide is also known as...

"high pass filter"

What percentage is the reference black level of a horizontal sync pulse?

What percentage is the reference black level of a horizontal sync pulse?

"70%"

What is a device that detects both vertically and horizontally polarized signal simultaneously?

What is a device that detects both vertically and horizontally polarized signal simultaneously?

"orthomode transducer"

What is the channel number of an FM station with 88.1 MHz carrier?

What is the channel number of an FM station with 88.1 MHz carrier?

"201"

What is the purpose of the electromagnetic field which surrounds a travelling wave tube?

What is the purpose of the electromagnetic field which surrounds a travelling wave tube?

"to keep the electrons from spreading out"

Amplitude modulation that vary the carrier amplitude with the modulating signal by passing it through an attenuator work on the principle of

Amplitude modulation that vary the carrier amplitude with the modulating signal by passing it through an attenuator work on the principle of

"Variable Resistance"