Antenna Placement | The antenna for the Central Controller must have a minimum | |
| length of 7 feet and should be run in an area central to all the | |
| transmitter locations. | |
| Increasing the length of the wire does not proportionally increase | |
| the effectiveness of the reception. Short increases in length run | |
| toward the weakest RF link can increase reception, however, extra | |
| long antennas can actually decrease reception. It is best to keep | |
| the antenna length less than I5 feet, if possible. | |
| Poor reception can. occur when the antenna is mounted in an area | |
| where a large metallic object is present. These metallic objects | |
| block the RF waves. Sometimes sources of metal are obvious, such | |
| as washing machines, refrigerators, heaters, etc...Other sources | |
| are better hidden. Metal ducts, other electrical wires, and steel "I” | |
| beams can all cause trouble if the antenna is run on top of or near | |
| them. | |
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| ‘Note: The antenna wire should not be bundled along with the | |
| phone line or any other wire. Many installers do this to make the |
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| installation look better, however, "no check in’ problems may |
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| appear due to the introduction of electrical noise, such as static, |
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| into the system. |
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| CAUTION: Don’t loop antenna wire. | |
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