DX Engineering DXE-SWA-148 Скачать руководство пользователя страница 2

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Table of Contents

Introduction

Features

Mounting Considerations

Installation

Feedline

Feedline Length Calculator

Assembly

Cenetr T Support

Support

Line

Antenna

Conenctions

Wire Element Connections

End-Insulator

Connections

Tuner Connections

Tuning Addendum

Optional Accessories

9-10

Technical Support and Warranty

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Содержание DXE-SWA-148

Страница 1: ...160m Dipole Patent Pending DXE SWA 148 Rev 1 DX Engineering 2006 P O Box 1491 Akron OH 44309 1491 Phone 800 777 0703 Tech Support and International 330 572 3200 Fax 330 572 3279 E mail DXEngineering DXEngineering com ...

Страница 2: ...nstallation Feedline 3 Feedline Length Calculator 4 Assembly Cenetr T Support 5 Support Line 5 Antenna Conenctions 6 Wire Element Connections 6 End Insulator Connections 7 Tuner Connections 7 Tuning Addendum 7 Optional Accessories 9 10 Technical Support and Warranty 11 2 ...

Страница 3: ...rated in most high quality antenna tuners to obtain a low SWR across the entire frequency range Using an external current balun may provide better performance and permits converting to coax prior to entering the operating position which will reduce RFI Mounting Considerations When planning the location of your antenna consideration should be given to the height location of suitable support structu...

Страница 4: ...he minimum for this antenna and should not be shortened If your installation results in excess feedline it can be zigzagged while suspended in air but it can t be closer than a few conductor widths to metallic objects and should not be coiled If it is necessary to pass close to a metallic object twist the line to partially balance the effect on both sides of the feedline If you need additional fee...

Страница 5: ...ne Calculator 5 Example To use this antenna from 160m to 10m the feedline should be in odd 1 8 wavelength multiples on 160m The 160m band starts at 1 8 MHz Therefore 123 1 8 68 3 Our feedline VF 0 88 so 68 3 x 0 88 60 1 ft per 1 8 wavelength If 90 feet is needed to get to our operating position the nearest odd multiple 1 8 wavelength length is 180 3 feet 60 1 x 3 If you need more than that the nex...

Страница 6: ...ure used for the dipole only above it forming at least a 30 degree angle between the dipole and the messenger line to support the antenna See Figure 2 Figure 2 Example Mounting Diagram Two 100 foot spools of Dacron rope are used for the messenger lines Use one spool for each side of the line Each rope should run through the top hole in the center T support and tied using the knot depicted in Figur...

Страница 7: ...s element wire down through one side of the notched slot of the center T support Next route the element wire back up through the inner slot and attach the red wire lug to the lower left terminal This terminal will also be used for the feedline connection The black and white wire lug is connected to the top terminal on the center T support Repeat the same process for the opposite side wire element ...

Страница 8: ...ure 5 Suggested Knot for End Brackets Connections to the Tuner If routing the ladder feedline to the operating position and your tuner keep the feedline in the shack as short as possible and away from metal chassis or cabinets to prevent interaction and unwanted RFI Connect the ladder feedline to the balanced two terminal inputs on your tuner 8 External tuners typically have inexpensive built in 4...

Страница 9: ...n be greatly reduced or eliminated A high quality 1 1 current balun is ideal for this antenna and is available from DX Engineering part number DXE BAL050 H10 AT This balun provides better balance often has lower loss and is more tolerant to load impedance and balance variations than most internal tuner baluns Use a good quality coax such as Belden RG 213 from the balun to your tuner Internal tuner...

Страница 10: ...e el ls s t to o C Ch ho oo os se e F Fr ro om m H Hu us st tl le er r V VH HF F U UH HF F V Ve er rt ti ic ca al ls s W Wa av ve el le en ng gt th h D Di ip po ol le e k ki it ts s f fo or r 1 16 60 0m m 8 80 0m m a an nd d 4 40 0m m 10 DX Engineering Current Baluns 5 10 and 10 KW Baluns and Current Chokes High efficiency low loss W8JI design All ratios available Feedline Current Chokes Reduce RF...

Страница 11: ...t roll Double Braid Dacron Polyester Rope STI DBR 94 100 3 32 inch x 100 ft STI DBR 125 100 1 8 inch x 100 ft STI DBR 187 100 3 16 inch x 100 ft STI DBR 187 350 3 16 inch x 350 ft STI DBR 312 100 5 16 inch x 100 ft STI DBR 312 500 5 16 inch x 500 ft STI DBR 437 500 7 16 inch x 500 ft Silver Teflon Connectors DXE PL259 Connector Silver Teflon Yagi Boom to Element Brackets DXE BEB 1 For 3 inch boom ...

Страница 12: ...isuse or neglect damaged by accident rendered defective by reason of improper installation damaged from severe weather including floods or abnormal environmental conditions such as prolonged exposure to corrosives or power surges or by the performance of repairs or alterations outside of our plant and shall not apply to any goods or parts thereof furnished by Buyer or acquired from others at Buyer...

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