Andrew DB404 دليل المستخدم

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Bulletin 095022-000
Installation Instructions
Revision K • September 2003 • Page 1 of 2
Broad Band Antennas – Omni/Elliptical
DB404
GENERAL INFORMATION
The DB404 series is a heavy duty, light weight antenna for
use where an omni-directional or an elliptical radiation pat-
tern is desired.
OPTIONAL RADIATION PATTERN
One important feature of the DB404 series antenna is that it
permits the user to adapt the antenna to changing coverage
requirements. When the dipole element pairs are spaced at
9

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DB404 Broad Band Antennas Andrew Corporation Bulletin 095022-000 • Revision K • September 2003 • Page 2 of 2 (Continued from page 1) DB404 SERIES INSTALLATION INSTRUCTIONS 7. After the antenna and transmission line installation is complete, a careful visual check should be made to 1. Remove the antenna from the shipping box and ensure ensure that: that all parts are on hand and that there is no physical damage. • All mechanical connections have been securely made. 2. Inspect the antenna fe