Directive Systems & Engineering DSEFO222-22 Скачать руководство пользователя страница 11

Страница: 11 / 11

P a g e

DSEFO222-22 Rev 2/21

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.

Содержание DSEFO222-22

Страница 1: ...Impedance Ohms 50 Connector type Type N F Front to back ratio dB 22 SWR Typical at resonance 1 12 1 Beamwidth 3dB degrees E Plane 23 H Plane 24 Sidelobe level decibels 1st E Plane 17 5 1st H Plane 15...

Страница 2: ...ed 2 Long tangent U bolt 1 1 3 8 OD x 0 058 x 72 rear mid Black Red 1 2 Saddle 1 1 1 2 OD x 0 058 x 72 center Red Blue 1 Aluminum spacer 2 1 3 8 OD x 0 058 x 71 1 2 front mid Blue Green 1 10 32 Machin...

Страница 3: ...of extras just in case 4 The element bundle contains all of the elements needed for assembly Take time to inventory each one and check off each dimension with Table 1 Some elements vary by 1 or 2mm i...

Страница 4: ...rs to remove the element and start again Some extra keepers are supplied but care is definitely required here Check your work as you go Proceed with the next element in similar fashion Note that the d...

Страница 5: ...in photo 2 Photo 2 10 Once the T arm is inserted all the way as in photo 2 slightly loosen the screw holding the insulator using a 1 Phillips screw driver 11 Rotate the T arm so the end of the T arm f...

Страница 6: ...ev 2 21 Photo 3 12 Next insert the straight T arm into the other standoff insulator until it is flush with the inside edge see photo 4 Photo 4 13 Last wrap the balun center conductor around the T arms...

Страница 7: ...ing bar the dimension below is a good starting point however to ensure the minimum SWR at your operating frequency we recommend using an antenna analyzer or SWR bridge to obtain the lowest SWR Note Th...

Страница 8: ...each leg of the long tangent U bolt you just installed and place the flattened end of one of the boom sag struts on each leg followed by another flat washer and a nylon lock nut DO NOT TIGHTEN THE NUT...

Страница 9: ...out 8 feet or 2 5 m above the ground Point the antenna so that there are no reflectors or obstructions for 100 feet directly in front of the beam A better method would be to point the antenna straight...

Страница 10: ...ss steel threads under the hex nuts to prevent galling of stainless steel This will complete the assembly of your DSEFO222 22 The construction of this antenna will provide many years of consistent per...

Страница 11: ...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...