Directive Systems & Engineering DSEFO144-12XPOL Manual Download Page 10

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DSEFO144-12XPOL Rev 2/21 

 

This will complete the assembly of your DSEFO144-12XPOL. The construction of this 

antenna will provide many years of consistent performance with no degradation of 
performance due to corrosion and weathering. 

 
TABLE 1 

 

 

Directive Systems Warranty Policy 

 

All Directive Systems antennas are built with the finest materials available. We take great pride 

in building a quality product that will give years of good service and performance. If there is a defect 

in materials or workmanship within 90 days of purchase, Directive Systems will repair or replace 

the defective part, free of charge, to the original purchaser. 

DO NOT RETURN ANYTHING 

WITHOUT PRIOR AUTHORIZATION FROM DIRECTIVE SYSTEMS

. Please contact us either by 

phone or email describing the problem and we will work to resolve it.  

 

If, after examining a new antenna you received, you are not satisfied, contact us immediately 

for return authorization and refund. 

ANY ANTENNA THAT HAS BEEN MODIFIED WILL BE 

SUBJECT TO A RESTOCKING CHARGE. IF AN ANTENNA IS SO MODIFIED AS TO MAKE IT 

UNUSABLE, DIRECTIVE SYSTEMS RESERVES THE RIGHT TO REFUSE TO ACCEPT THE 

ANTENNA FOR RETURN. 

 

 

Element 

Description 

Orientation 

(

Horiz 

or Vert) 

Element 

Length mm. 

Keeper Half 

Length mm. 

Boom 

Section 

 

 

 

 

 

Reflector 

H

 & V 

1044 

501 

Rear 

Driven Element 

H

 & V 

955 

n/a 

Rear 

Director #1 

H

 & V 

961 

459 

Rear 

Director #2 

H & V 

938 

447 

Rear 

Director #3 

H

 & V 

922 

440 

Rear 

Director #4 

912 

435 

Rear 

Director #4 

912 

434 

Center 

Director #5 

& V 

903 

428 

Center 

Director #6 

& V 

898 

425 

Center 

Director #7 

894 

424 

Center 

Director #7 

894 

425 

Front 

Director #8 

H

 & V 

890 

424 

Front 

Director #9 

H

 & V 

886 

423 

Front 

Director #10 

882 

421 

Front 

Director #10 

882 

422 

Extension 

 

Summary of Contents for DSEFO144-12XPOL

Page 1: ...tacking Distance ft m E Plane 11 7 3 53 H Plane 10 8 3 25 MECHANICAL SPECIFICATIONS Boom length ft m 19 5 79 Turning radius in m 12 3 65 Weight Assembled Lbs kg 12 5 44 Max mast size in cm 2 5 08 Wind...

Page 2: ...ied with kit ruler with metric millimeter markings marking pencil Hardware Bag Boom to Mast Hardware T arm Shorting Bars 4 1 4 x 1 3 4 U bolts 2 8 32 x 1 1 4 Machine screw 8 1 4 Nuts 4 8 32 x 1 1 2 Ma...

Page 3: ...d check off each dimension with Table 1 Some elements vary by 1 or 2mm in overall length so extreme care in measuring is called for here Arrange elements in order of descending size and mark each elem...

Page 4: ...re is definitely required here Check your work as you go Proceed with the next element in similar fashion Check off each element on Table 1 to monitor your progress Double check element lengths one la...

Page 5: ...P a g e 5 DSEFO144 12XPOL Rev 2 21 FIGURE 4...

Page 6: ...P a g e 6 DSEFO144 12XPOL Rev 2 21...

Page 7: ...P a g e 7 DSEFO144 12XPOL Rev 2 21 FIGURES 5 Then repeat the installation of the driven element for the other polarity...

Page 8: ...ernal tooth lock washer the lug from the N connector another 6 internal tooth lock washer the T arm and screw into the insulator Slide the shorting bars over the ends of the driven elements and over t...

Page 9: ...bridge or coupler can increase accuracy but 1 2 1 is more than adequate for any installation The aperture of this antenna is large enough so that you must elevate the antenna a minimum of about 10 fee...

Page 10: ...er by phone or email describing the problem and we will work to resolve it If after examining a new antenna you received you are not satisfied contact us immediately for return authorization and refun...

Page 11: ...ents bring your coax out at a 45 angle from the boom to mast plate Allow about 3 for the drip loop then attach the coax to the stacking frame Be sure when dressing the coax along the boom you do not l...

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