DSE3311LYRM Rev 3/21
Directive Systems & Engineering
2702 Rodgers Terrace
Haymarket, VA 20169-1628
www.directivesystems.com
703-754-3876
33cm Loop Yagi (Rear Mount), Model DSE3311LYRM
SPECIFICATIONS
Frequency range:
902-928 MHz
Gain:
14.5 dBi
Number of elements:
11
3 dB Beamwidth
Boom length:
36 inches
(E plane):
=34º
Boom diameter:
1 inch
F/B ratio:
>
20 dB
Mast diameter:
1 1/2 inches max
Maximum Power:
550 W average
Weight: (assembled)
2 pounds
Stacking distance: 17
inches’ vertical
Connector: Type-N female
19
inches’ horizontal
Note: All hardware is Stainless Steel unless otherwise noted.
Anti-Seize Compound
- Apply a small amount of the supplied Anti-Seize Compound to the aluminum joints and
to the threads of the U-Bolts to prevent galling.
BEFORE INSTALLING YOUR NEW ANTENNA, PLEASE BE SURE
TO READ THE ENCLOSED WARNING PAMPHLET.
ASSEMBLY INSTRUCTIONS
1)
Carefully remove the antenna from shipping container
and locate the hardware package.
2)
Straighten any misaligned elements and tighten hardware if necessary.
But do not
touch R1, DE or D1, as these have been factory set for minimum SWR.
3)
Insert the U-bolt in the Rear-Mount Bracket. The Bracket can be oriented for horizontal
or vertical polarization. (See figures below.) There are two sets of mounting holes in the rear
boom.
