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TV Antenna Amplifier. The Antop TV Antenna Amplifier enhances the signal of a non-amplified or “passive” TV antenna. Passive antennas don’t require any external power source and rely purely ...
The automatic kind will also lower when the ignition switch is turned off. Unlike most car antennas adjusted directly by hand, power antennas retract completely beneath the surface that they are mounted on. This convenience could be found on most luxury cars by the late-1950s. The automatic power antenna became much more common in the 1970s. [1]
The category of simple antennas consists of dipoles, monopoles, and loop antennas. Nearly all can be made with a single segment of wire (ignoring the break made in the wire for the feedline connection). [citation needed] Dipoles and monopoles called linear antennas (or straight wire antennas) since their radiating parts lie along a single ...
This is the type of antenna used in most portable AM broadcast receivers (other than car radios): The standard AM antenna is a loop of wire wound around a ferrite rod (a "loopstick antenna"). The loop is resonated by a coupled tuning capacitor, which is configured to match the receiver's tuning, in order to keep the antenna resonant at the ...
Antenna diversity is especially effective at mitigating these multipath situations. This is because multiple antennas offer a receiver several observations of the same signal. Each antenna will experience a different interference environment. Thus, if one antenna is experiencing a deep fade, it is likely that another has a sufficient signal ...
Most drivers who buy car insurance from GEICO are able to participate in DriveEasy, a safe-driving program that rewards or penalizes drivers based on their driving behavior.
For a given frequency, the antenna's effective area is proportional to the gain. An antenna's effective length is proportional to the square root of the antenna's gain for a particular frequency and radiation resistance. Due to reciprocity, the gain of any antenna when receiving is equal to its gain when transmitting.
This program was established in response to Title II of the Motor Vehicle Information and Cost Savings Act of 1972, to encourage manufacturers to build safer vehicles and consumers to buy them. Over time, the agency improved the program by adding rating programs, facilitating access to test results, and revising the format of the information to ...
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