Try Heavy -Duty Foil
2007-06-22 17:17:35
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answer #1
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answered by peace seeker 4
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actually there are two main considerations, and the methods depend on frequency.
1. at greater distance, the signal level tapers off. This can be corrected by adding an additional amplifier sometimes called a pre-amp because it works ahead of your receiver box. However the pre-amp amplifies noise and interference as well.
2. interference from other stations or noise sources acts to block weak signals and this tends to be the limiting factor in most cases.
The use of a highly directional antenna helps reduce interference sources, and provides additional noise free receive gain. In the 60's television stations would get their precision operating frequency measurement by labs in the central USA. They used a highly directional rhombic antenna and picked up signal scattered by the troposhpere up to a thousand miles from the transmitting station.
There are occassional events that allow the propagation of signals over long, even world wide distances. the propagation enhancement modes often do not require any specialized receiver gear. ham radio enthusiasts track these as part of the hobby. check in with a local club or read amateur radio books to get further informantion.
2007-06-23 13:22:04
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answer #2
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answered by lare 7
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AM broadcast band transmissions can travel long distances at night.
Better quality radios will have an external antenna input.
Adding a suitable antenna to this will increase the range dramatically over an built in or indoor antenna.
Distant stations 1000's of miles away can sometime be heard.
http://www.mwcircle.org/res-intromwdx.htm
For the FM band directional antennas can be made or purchased (tv antenna will do) and this can be aimed at the transmitting tower.
Ranges of 500 to 1500 miles are possible.(sometimes)
http://members.cox.net/fmdxweb/whatis.html
An alternative is shortwave listening where regularly signals from the other side of the world can be listened to reliably.
http://www.swdxer.co.nr/
2007-06-23 13:01:59
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answer #3
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answered by I♥U 6
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I believe you are talking about AM (and not FM)
Put up an antenna - taller the better
Try different combinations - if you have the patience
On the receiver's coil, try grounding the other end of the coil
2007-06-23 06:38:32
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answer #4
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answered by j0p1 1
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even with antennae, radio signals still cannot bend around the earth's surface - so for instance a radio signal transmitted in Australia will not be able to be received in New York City - without a few of these --> http://en.wikipedia.org/wiki/Transponder in between
2007-06-23 00:19:49
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answer #5
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answered by Anonymous
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SEE IT ALL DEPEND ON THE ANTENNA..
YOU CAN PUT UP A BIGGER ONE..
AND ALSO IT DEPENDS ON THE RANGE OF THE TOWER..
IF YOUR RADIO IS KEPT BEYOND ITS RANGE THEN IT WILL NOT WORK..
BUT USUALLY THEY HAVE VERY POWERFUL TOWERS..
2007-06-23 00:19:55
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answer #6
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answered by SCORPION 2
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it it called an antenna..... geta bigger stronger antenna.
2007-06-23 00:16:31
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answer #7
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answered by whelchel77 2
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