New Telecom AllOther Interview Questions :: ALLInterview.com http://www.allinterview.com New Telecom AllOther Interview Questions en-us Describe an impedance matching circuit? http://www.allinterview.com/showanswers/16511.html Impedence Matching: Impedance Matching is nothing but in a network source to load maximum power can be transfered it is called impedance matching Describe circular polarization? http://www.allinterview.com/showanswers/16510.html What= is the 911 point? http://www.allinterview.com/showanswers/16509.html Describe VSWR? http://www.allinterview.com/showanswers/16508.html It is voltage standing wave ratio. It is the ratio of max voltage to the min voltage along the transmission line. What is noise figure? http://www.allinterview.com/showanswers/16507.html It is the ratio of o/p signal to noise ratio to the i/p signal to noise ratio. What are mixers used for? http://www.allinterview.com/showanswers/16506.html What Are the different filter types ? http://www.allinterview.com/showanswers/16505.html What is a superheterodyne receiver? http://www.allinterview.com/showanswers/16504.html a superhetrodyne receiver is one which has same carrier frequency as the transmitter otherwise the original signal recovery will not be possible. What is the relation between dB and change of signal? http://www.allinterview.com/showanswers/16503.html +3 dB is 2 times bigger, +10 dB is 10 times bigger. Define Thermal impedance? http://www.allinterview.com/showanswers/16502.html