The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
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Page 230
... receiver is manufactured or serviced . The intermediate frequency is usually around 455 kilohertz for AM receivers , 10.7 mega- hertz for FM receivers , and 38 megahertz for television receivers . Most of the amplification in a radio ...
... receiver is manufactured or serviced . The intermediate frequency is usually around 455 kilohertz for AM receivers , 10.7 mega- hertz for FM receivers , and 38 megahertz for television receivers . Most of the amplification in a radio ...
Page 231
... Receiver sensitivity is the ability of a receiver to pick up weak signals . Though a communication receiver should always have a high sensitivity , there is a maximum de- termined by the noise generated inside the receiver itself ...
... Receiver sensitivity is the ability of a receiver to pick up weak signals . Though a communication receiver should always have a high sensitivity , there is a maximum de- termined by the noise generated inside the receiver itself ...
Page 240
... receiver , without relative discrimination between frequencies , on all the channels to which the receiver may be tuned . At the antenna terminals of the receiver , the picture and sound signals are at their weakest , so particular care ...
... receiver , without relative discrimination between frequencies , on all the channels to which the receiver may be tuned . At the antenna terminals of the receiver , the picture and sound signals are at their weakest , so particular care ...
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