background image

 

DSE1345LY

 

Rev

 

12/13

 

Directive

 

Systems

 

&

 

Engineering

 

                     

2702

 

Rodgers

 

Terrace

 

              

Haymarket,

 

VA

 

20169

1628

 

                             

www.directivesystems.com

 

                                      

703

754

3876

 

 

2304

 

MHz

 

Loop

 

Yagi,

 

Model

 

DSE1345LY

 

 

SPECIFICATIONS

 

 

Frequency 

Range: 

 

   2.2 

to 

2.35 

GHz 

Number of elements:  

 

 

45 

Boom 

Length: 

    81 

inches 

Boom 

diameter: 

 

   0.5 

inch 

Mast 

diameter: 

 

   1 

inch 

Weight: 

 

    3 

pounds 

Connector: 

 

    Type 

female 

Gain: 

 

     

20 dBi 

3 dB Beamwidth (E Plane):    

16°  

F/B 

ratio: 

 

     20 dB 

Maximum Power:  

 

 

400 W. average 

Stacking distance:    

 

13 inches vertical 
15 inches horizontal

 

 

 

ASSEMBLY

 

INSTRUCTIONS

 

 

1)  

Unpack the antenna and locate the hardware package. Some antennas are shipped in 

two sections, in which case the boom is broken between directors 25 & 26. Remove D24 and 
D25 from the rear boom section and slide the two boom pieces together. Align the elements. 
Replace D24 & D25 and retighten.

 

 
2) 

 Attach the boom to mast plate to the boom with the hardware provided. Install the U-bolts 

so that the mast comes up directly under the boom.  
 
3)  

Attach the feed line, and tape it to the bottom of the boom. . The connector should be 

sealed with silicone RTV or equivalent.  
 
4)  

Straighten any misaligned elements and re-tighten if necessary. 

 
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 andR1 and D1. R1 is the reflector 
closest to the driven element.

 

 
6) 

 If antennas are to be stacked, see "Instructions for Stacking Loop Yagis". 

 
 

Отзывы: