Directive Systems & Engineering DSEDBFEED Installation Instructions

Dual band w5lua type dish feed

Directive Systems & Engineering

2702 Rodgers Terrace

Haymarket, VA 20169-1628

www.directivesystems.com

703-754-3876

Dual Band W5LUA Type Dish Feed, Model DSEDBFEED

This feed design is based on the work of Al Ward, W5LUA, and represents an efficient way to

use one dish on two different ham bands. Unlike earlier multi band feed designs, W5LUA's

design is capable of good performance on both microwave bands in use. In addition, the

higher isolation of this design, between 10 & 5.7 GHz simplifies installation requirements by

eliminating the need, in many cases, for a protective relay on the 5.7 GHz port. Isolation runs

over 30 dB and is typically 40 dB.

Note: All hardware is Stainless Steel unless otherwise noted.

BEFORE INSTALLING YOUR NEW ANTENNA, PLEASE BE SURE

TO READ THE ENCLOSED WARNING PAMPHLET.

INSTALLATION INSTRUCTIONS

Unpack antenna feed assembly and observe the location of the connectors and probe

orientation. For horizontal polarization, the probes must be oriented parallel with the horizon.

(The connectors will stick out laterally on the antenna.)

DSEDBFEED Rev 10/20

Table of Contents

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Page 1 703-754-3876 Dual Band W5LUA Type Dish Feed, Model DSEDBFEED This feed design is based on the work of Al Ward, W5LUA, and represents an efficient way to use one dish on two different ham bands. Unlike earlier multi band feed designs, W5LUA’s design is capable of good performance on both microwave bands in use.
Page 2 >30 dB isolation value. These plots were made with the feed only in free space. Actual results should be the same unless there is blockage at the mouth of the feed. DSEDBFEED Rev 10/20...
Page 3 ANY ANTENNA THAT HAS BEEN MODIFIED WILL BE SUBJECT TO A RESTOCKING CHARGE. IF AN ANTENNA IS SO MODIFIED AS TO MAKE IT UNUSABLE, DIRECTIVE SYSTEMS RESERVES THE RIGHT TO REFUSE TO ACCEPT THE ANTENNA FOR RETURN. DSEDBFEED Rev 10/20...