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2112 116TH AVE NE SUITE 1-5, BELLEVUE WA, 98004 

WWW.STEPPIR.COM

TEL: (425)-453-1910 FAX: (425)-462-4415

NOTES:

The Dacron rope will come in one continuous piece.  Loop one end of the piece through the truss attachment plate eye-bolt as
shown in Figure XX. Tie 3 half hitch knots.  Figure XX shows how to make a single half hitch.  To make multiple half hitches,
simply repeat.  Leave about 2” of dacron rope leader after the third half hitch knot. Tape the leader to the rope as shown in fig-
ure XX and melt the ends to avoid fraying.
Pull the Dacron rope tightly towards the truss attachment post and loop the rope around the post one full wrap as shown in fig-
ure XX, keeping tension on the rope.  The rope must be between the stainless steel washer and the aluminum spacer, as shown
in figure XX.  
Keeping tension on the rope, pull the rope to the quick links that you have already installed on the antenna switch mounting
plate.  Insert through the link, pulling tight and tie 3 half hitch knots.  Leaving approximately 2” of leader, cut the Dacron rope.
You will use the remaining rope for the other half of the support line. Following the same steps.
On each end of the dipole conductor support line, tighten the tensioning eyebolts so that the support line is tight enough to sup-
port the blue Ultra-flex dipole conductor wire.
Attach the lug of the blue Ultraflex wire to the brass EHU studs.  pull the Ultra-flex wire to the dacron support line, leaving
enough play to that it does not pull on the lug.  Tape with electrical tape.  Wrap the Ultra-flex 3 times per foot, as shown in fig-
ure XX.  Be sure to leave 4” of space between wraps when you pass the truss supports, taping each side of the space as shown
in figure XX.  Continue wrapping until you reach the antenna switch.  Tape the Ultraflex to the support line where the leader
ends.  You will need to trim the Ultraflex for connection to the antenna switch.
Repeat for other side of dipole.

 








 


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Spacer 

Washer 

Rope 

TAPE 

TAPE 

Tape the dipole conduc



$% #

 

 

  

  

 

 

 

  

Secure the lug of the dipole
conductorwire to each EHU
post.  Weather protect connec-
tion with coax-seal or equiva-
lent


Содержание DB42 MonstIR PRO

Страница 1: ...2112 116TH AVE NE SUITE 1 5 BELLEVUE WA 98004 WWW STEPPIR COM TEL 425 453 1910 FAX 425 462 4415 DB42 80m Dipole Option Installation Instructions ...

Страница 2: ... the performance of the antenna when using the Yagi on other frequencies because the wires are connected at the zero current point in the center of each element The 80m dipole is an option that can be purchased for the DB42 Yagi It can be installed during the process of building the DB42 or it can be installed afterwards This option should only be installed with the antenna on the ground When the ...

Страница 3: ...talled on each side of the boom as shown in figure XX When installing the truss attachment plate use the longer bolts included in the 80m dipole kit in place of the stan dard bolts included with the DB42 hardware as shown in figure XX The standard length bolts will not be used remove them from the assembly process Mount the tensioning eye bolt to the truss attachement assembly as shown in figure X...

Страница 4: ...opes for the truss supports from getting in your way Follow the instructions in section XX for installing the truss supports Once the truss supports are attached to the boom as shown in figure XX install the dipole attachment post assem bly as shown in figure XX The post itself will be tightened firmly using the 1 4 standard nut and the nylock nut leave a small amount of space between the 3 8 wash...

Страница 5: ...cure the stainless steel quick links to the mounting plate of the antenna switch DO NOT attach the lid of the antenna switch until wiring is completed it will make wiring difficult and the cover is almost impossible to remove once you attach the hinges Be certain you mount the antenna switch so that the top edge of the saddles are 22 1 4 above the top of the boom ...

Страница 6: ...g tight and tie 3 half hitch knots Leaving approximately 2 of leader cut the Dacron rope You will use the remaining rope for the other half of the support line Following the same steps On each end of the dipole conductor support line tighten the tensioning eyebolts so that the support line is tight enough to sup port the blue Ultra flex dipole conductor wire Attach the lug of the blue Ultraflex wi...

Страница 7: ...ecure cables to the boom of mast of the antenna Do not secure the cable to anything that has a sharp edge including aluminum saddles bolts mounting plates etc Connect the 4 ft coax jumper 21 6301 70 from the driven element EHU to the SO239 labeled OUT located on the rear of the 80m diple switch as shown in figure XX Connect the primary feed line coming from the shack to the SO239 labeled IN locate...

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