Telenetics OM-AMPS-100 manual Types of External Antennas, Directional Antenna

Section 5

External Antenna Guidelines

cell site might be farther away, the fact that the signal is coming from a different direction might avoid natural or man-made obstacles that blocked the signal from reaching the previous antenna location.

Types of External Antennas

The following sections describe the various external antennas that can be used with OMEGA.

Directional Antenna

A directional antenna is usually best for a fixed installation. The signal from this type of antenna is focussed in one direction. Directional antennas can be designed to have different beam widths –– wide, medium, or narrow. The narrower the beam width, the higher the antenna’s gain.

Directional antennas must be pointed directly at the cell site. We recommend you use directional antennas designed to provide the maximum E.R.P. allowed by FCC regulations and EIA standards. Contact the cellular carrier in your area to determine the exact location of the nearest cell site.

To install a directional antenna:

cFind the location of the nearest cell site that services your area.

cAttach the antenna to the appropriate connector on the OMEGA unit, making sure the connection is secure.

cPoint the antenna toward the cell site.

cMake sure the bars on the antenna are positioned vertically.

cMake sure that the antenna perimeter is clear of objects, especially metal ones, that might interfere with the signal transmission and reception.

Elevated Feed 3dB Gain Antenna

Elevated feed antennas are designed to handle most cellular installations. There are a number of different ways to mount the antenna that will result in adequate signal strength for data applications in most area. Note that this type of antenna does not require a ground plane.

50 OMEGA Installation, Operation, and Maintenance Manual