Specifications Chapter 2c

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Navini Networks, Inc. Ripwave Base Station I&C Guide

Chapter 2c

Part #40-00047-04 Rev F v1.0 (TTA) 61

October 23, 2003

Install the RFS

Check all regulatory standards (refer to Chapter 1, Page 8 “Regulatory Information”) prior to

installation. Now that the BTS is in place, the RFS is readied for installation. Follow the Panel or

Omni Antenna information and procedures below. Reference the specifications in Appendix H.

Panel Antenna

The RFS Panel antenna is installed on a structure, such as a tower or a pole, which is defined in

the site survey and design. Following are the steps to complete the installation of the panel

antenna.

Verify RFS Operation

Verify proper operation of the RFS before installation. Test the transmit and receive path of each

antenna in the RFS per Appendix S, and using the RFS System Test Form in Appendix O.

Set the Downtilt

Check the engineering study for the required downtilt of the antenna. The panel antenna has 6

o

of

fixed electrical downtilt but it can be mechanically adjusted for an uptilt of 0 to 10

o

. As a result,

the main lobe of the beam can be pointed between 4 degrees above and 6 degrees below the

horizon.

Figure 28: Panel Antenna Elements

Weatherized

connectors

Mounting

Bracket

(downtilt

adjustment)

Weatherized

connectors

Mounting

Bracket

(downtilt

adjustment)

Summary of content (4 pages)

PAGE 1
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2c Install the RFS Check all regulatory standards (refer to Chapter 1, Page 8 “Regulatory Information”) prior to installation. Now that the BTS is in place, the RFS is readied for installation. Follow the Panel or Omni Antenna information and procedures below. Reference the specifications in Appendix H. Panel Antenna The RFS Panel antenna is installed on a structure, such as a tower or a pole, which is defined in the site survey and design.
PAGE 2
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2c Omni Antenna An Omni antenna has 2 degrees of fixed electrical downtilt Figure 29: Omni Antenna Elements Weatherized connectors Ground Mounting bracket Cable Hoist Set the Azimuth Position the RFS on the mounting pole or structure, ensuring that the antenna is pointing in the proper azimuth direction determined by the engineering study. For an omni, the first antenna element must face East (Figure 30).
PAGE 3
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2c The azimuth direction is stated in degrees from true North. Use the diagram shown in Figure 31 to determine the declination angle for your location. Add or subtract the declination angle from magnetic North to obtain true North. Tighten the four nuts on each of the two antenna mounting brackets to secure the RFS to the mounting pole. Use a compass to check the direction from the center of the panel (this is magnetic North).
PAGE 4
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2c Verify the Downtilt Using an inclinometer (Figure 32), check the downtilt of the RFS antenna. If required, adjust the angle using the downtilt adjustment brackets. Be sure to include any electrical uptilt or downtilt built into the antenna in the setting. Tighten the mounting hardware to secure the RFS in the proper position. Recheck the downtilt angle again to verify proper position.