Directive Systems & Engineering DSE1321LYRM Manual

2.28‐2.35 GHz Loop Yagi (Rear Mount), Model DSE1321LYRM
Frequency range:
Number of elements:
Boom length:
Boom diameter:
Mast diameter:
Weight: (assembled)
Connector:
1) Unpack the antenna and locate the hardware package. The boom is in one piece and
requires no assembly. Observe that the boom to mast bracket is installed on the rear of the
boom.
2) Attach the boom to mast angle bracket to the boom with the 8-32 x 1" hardware
provided. Install the U-Bolt in the angle bracket. Be careful to leave room for the feedline to
attach to the connector assembly.
3) Attach the feedline and tape it to the bottom of the boom and mast. The connector
should be sealed with silicone RTV or equivalent.
4) Straighten any misaligned elements and re-tighten if necessary. Do not adjust R1 or D1
as they have been set for best VSWR!
5) The antenna SWR has been adjusted at the factory for less than 1.5:1 mismatch.
Additional tweaking can be accomplished by changing the shape of the driven element slightly
and by adjusting the distance between the driven element and R1 and D1. R1 is the reflector
closest to the driven element.
6) If antennas are to be stacked, see "Instructions for Stacking Loop Yagis".
DSE1321LYRM Rev 12/13
Directive Systems & Engineering
2702 Rodgers Terrace
Haymarket, VA 20169‐1628
www.directivesystems.com
703‐754‐3876
SPECIFICATIONS
2.28 to 2.35 GHz
21
36 inches
0.5 inches
1 1/2 in. max
2 pounds assembled
Type-N female
ASSEMBLY INSTRUCTIONS
≅17.5 dBi
Gain:
3 dB Beamwidth
≅24º
(E plane):
F/B ratio: >20 dB
Maximum Power: 400 W average
Stacking distance: 9 inches vertical (H)
11 in. horizontal (E)