Hp ProCurve 802.11g Access Point Card 170wl Series Instrukcja Użytkownika Pobierz pdf (Strona 6)

Using an External Antenna with the 170wl Radio Card

Pre-Installation Considerations

• For optimum coverage, mount the antenna at the center of the area

with a line-of-sight path to all points within the area.

• Avoid mounting next to or near building support columns or other

obstructions that may cause reduced signal or null zones in parts of

the coverage area.

• When mounting outdoors using a mast, make sure the antenna

extends beyond the top of the mast.

■ Directional Antennas - Consider these factors when selecting a location

for these antennas:

• For optimum coverage, mount the antenna above any obstructions,

directed at the center of the coverage area sector.

• High-gain directional antennas provide a flattened radio coverage

pattern in the horizontal plane. Use the tilting or articulated mounts

to point the antennas towards the coverage area.

■ Outdoor Installation - When installing an antenna outdoors, be sure to

consider these additional factors:

• Always place the antenna away from power and telephone lines.

• Ensure the antenna, any supporting structure, and cables are all

properly grounded.

• For lightning protection, it is highly recommended to use a lightning

arrestor immediately before the cable enters the building.

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Hp ProCurve 802.11g Access Point Card 170wl Series Instrukcja Użytkownika Strona 6