DSE9112LY Rev 10/20
Directive Systems & Engineering
2702 Rodgers Terrace
Haymarket, VA 20169-1628
www.directivesystems.com
703-754-3876
9cm Loop Yagi, Model DSE9112LY (w/sub-boom)
SPECIFICATIONS
Frequency range:
3.40 to 3.50 GHz
Gain:
≅
25.2dBi
Number of elements:
112
3 dB Beamwidth
Boom length:
144 inches
(E plane):
≅
8.7º
Boom diameter:
0.5 inch
(H plane):
≅
9.0º
Mast diameter:
2 inches max
F/B ratio:
>25 dB
Weight: (assembled)
4.62 pounds
Maximum Power:
300 W average
Connector: Type-N female
Stacking distance: 21
inches’ vertical
Wind area: 1.0 sq. ft.
22
inches’ horizontal
Note: All hardware is Stainless Steel unless otherwise noted.
BEFORE INSTALLING YOUR NEW ANTENNA, PLEASE BE SURE
TO READ THE ENCLOSED WARNING PAMPHLET.
ASSEMBLY INSTRUCTIONS
1)
Unpack the antenna and locate the hardware package. Antennas are shipped in two
sections. In addition, a "sub-boom" is supplied (see drawing above.) The boom is broken
between directors 55&56. Remove D56, D57 and D58 from the front boom section and slide
the two boom pieces together. Use the alignment marks on the boom to correctly connect the
boom pieces. Align the elements. Replace D56,57& D58 Note that D56-58 are all similar in
size. Tighten the elements on the boom.
2)
Straighten any misaligned elements and re-tighten if necessary.
But do not touch R1,
DE or D1, as these have been factory set for minimum SWR.
