Alpha-Delta_DX-Ultra_使用说明书手册_2020

ALPHADELTACOMMUNICATIONS.INC.Instructions for Model DX-ULTRA Shortwave Receiving antennaNote:The Model DX-ULTRA is a slightly retuned version of the Model DX-CC HF ham radio antenna,favoring the adjacent HF shortwave bands and providing broadband HF coverage.Therefore,theseassembly instructions are taken from the Model DX-CC.SWR.ham band references and other transmitdata does not apply.See our WEB site at for complete Model DX-CC data.Alpha Delta HF wire dipoles are precision made products,manufacturedin the U.S.A in our ISO-9001 certified facility for the highest qualitypossible.Due to the design of the ISO-RES inductor coils (not traditionallossy traps),the efficiency of the antennas is outstanding and they are usedworldwide with great DX results around the globe!Stainless steelhardware and insulated high tensile strength solid copper 12 ga.wire isused to withstand the most severe environments.When you put it up,itSTAYS up!0IRE■CIE-RRAPFOR STAND-OFFS1.Unroll the wire elements,removing any kinks that may have been inducedin packaging.2.At eack side of the center insulator you will find 3 wires:(A.)The 80/40/15meter wire with an ISO-RES coil and 3 long and 3 short stand-offsinstalled.It is approx 41 ft.long.(B.)The 20 meter wire,approx 16 ft.long.(C.)The 10 meter wire,approx 8 ft.Long.3.With the antenna wires laid out on the ground,fully extended,run the 20and 10 meter wires through the stand-offs as shown in the graphic withthe 20 meter wires running through the center holes of the 3 longstand-offs,and the bottom holes of the 3 short stand-offs.The end of the20 meter wire should be twisted back on itself(about 2 inches)through,and around the last short stand-off for proper support.The 10 meter wires run through the bottom holes of the 3 long stand-offs,as shown.The end of the 10 meter wire should be twisted back on itself(about 2 inches)through,and around the last long stand-off.All of the stand-offs should be spaced as equally as possible for bestsupport.When all the wires and stand-offs have been positioned properly,tightly wrap wire-ties around the top and bottom of each stand-off andantenna wire to prevent movement.For the wire-ties,cut approx 6 inchlengths from the 12 ft.coil of wire provided.See the graphic for example.CAUTION!CAU'TION！CAUTION！Never installantennas near power lines or drop lines as contactwith these lines is DANGEROUS and could causebodily injury or death!Think SAFETY!