DSE945LYRMK Rev 12/20
Directive Systems & Engineering
2702 Rodgers Terrace
Haymarket, VA 20169-1628
www.directivesystems.com
703-754-3876
9cm Loop Yagi Kit (Rear Mount), Model DSE945LYRMK
SPECIFICATIONS
Frequency range:
3.4 to 3.5 GHz
Gain:
20 dBi
Number of elements:
45
3 dB Beamwidth
Boom length:
60 inches
(E plane):
16º
Boom diameter:
0.5 inch
F/B ratio:
>20 dB
Mast diameter:
1 1/2 inches max
Maximum Power:
100 W average
Weight: (assembled)
1.5 pounds
Stacking distance: 9
inches’ vertical
Connector: Type-N female
9.8
inches’ horizontal
PARTS LIST
Note: All hardware is Stainless Steel unless otherwise noted.
Quantity Description
Quantity Description
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.
CAUTION:
While we strive to remove all burrs from all machined parts, there is always the possibility of
sharp edges. We strongly suggest checking the edges and use a fine file, or 400 grit
sandpaper, to remove any burrs that may have been left.
1
0.5" x 48” drilled boom
44
3-48 x 3/4" machine screw
1
0.5" x 36” drilled boom
44
3-48 x 3/4" split lock washer
2
reflectors 1&2
44
3-48 x hex nut
1
driven element
2
8-32 x 1/2” machine screw
11
directors 1-11
2
8-32 x 1” machine screw
7
directors 12-18
4
#8 split lock washer
6
directors 19-24
4
#8 hex nut
12
directors 25-36
1
boom to mast angle bracket
6
directors 37-42
1
boom to mast plate
2
1/2” black end caps
1
U-bolt with nuts & saddle
1
Anti-Seize Compound
1
Cable assembly w/connector
1
Assembly manual
