Bulletin 095341-000 • Revision G • December 2003 • Page 4 of 4
Directional Panel Antennas
Andrew Corporation
Andrew Corporation
Base Station Antennas
8635 Stemmons Freeway
Dallas, TX U.S.A. 75247
Telephone: 1-800-676-5342
FAX (U.S.A.): 1-800-229-4706
Internet: www.andrew.com
Customer Service, 24 Hour: U.S.A. • Canada • Mexico: 1-800-255-1479
U.K.: 0800 250055
Other Europe: +44 1592 782612
Printed in U.S.A.
Copyright © 2003 by Andrew Corporation
Figure 6. DB391 Optional Offset Mounting Kit.
vent the antennas from being aligned on the same horizontal
plane. As a result, the antennas must be "stagger-mounted"
(i.e. each antenna should be mounted approximately 2 inches
lower than the one above it on the mast). See Figure 5.
DB391 INSTALLATION INSTRUCTIONS
FOR OFFSET MOUNTING
The DB391 offset mounting kit includes 2 bracket assem-
blies that provide a 4.8 inch offset from the mast centerline.
This feature allows enhanced cable clearance for antennas
with connectors located on the back (Figure 6). The DB391
offset assembly can be mounted on either side of the mast
or in-line (Figure 7).
1.
If the antenna has been previously installed with DB390
hardware, remove the mounting brackets from the an-
tenna and from the mast.
2.
Determine which direction of offset is desired, or whether
the antenna is to be mounted in-line with the mast (Fig-
ure 7.)
3.
Follow the steps discussed in the INSTALLATION IN-
STRUCTIONS section of this instruction sheet, using
the DB391 mounting brackets with tabs (Figure 6).
Top View
With No Offset
Top View
With Left Offset
Top View
With Right Offset
Figure 7. Possible Mounting Configurations
Using DB391 Offset Kit.
(Continued from page 3)
