CUSHCRAFT BIG THUNDER Series Manual Download | Manualshive

Page: 1 / 12

background image

20-15-10 Meter Nine Element Beam

951471 (9/98)

COMMUNICATIONS ANTENNAS

ASSEMBLY &

INSTALLATION

1
2
3
...
»

Summary of Contents for BIG THUNDER Series

Page 1: ...20 15 10 Meter Nine Element Beam 951471 9 98 COMMUNICATIONS ANTENNAS ASSEMBLY INSTALLATION ...

Page 2: ... Location of the antenna is very important Surrounding objects such as trees power lines buildings and other antennas will interact with an HF Yagi To minimize the effects of surrounding objects mount the antenna as high and in the clear as possible Metallic guy wire within 30 feet of this antenna should be broken with strain insulators to improve performance 40 Meter Add On Kit The X940 40 meter ...

Page 3: ...2 5 x 13 3 x 0 3 cm 2 ____ 330885 Brush 1 ____ T2 17 10 meter Director Trap 43 cm 2 ____ T4 19 15 meter Director Trap 48 cm 2 ____ T6 20 3 4 15 Meter Director Trap 52 7 cm 2 ____ TD 16 1 2 10 Meter Director Trap 42 cm 2 ____ MNX79 Matching Network 42 cm 1 ____ BA 2 1 2 x 84 Drilled Aluminum Tube 6 4 x 213 cm 1 ____ BB 2 1 2 x 72 Drilled Aluminum Tube 6 4 x 182 cm 1 ____ BC 2 1 2 x 54 Drilled Alumi...

Page 4: ... Tighten these nuts in place before assembling element bracket halves The 1 4 flat washers 1 8 thick 529 are used on brackets as spacers Figures 4A 4B 4C The Boom may be placed on a flat surface with all brackets laying flat on the surface This will allow all brackets to be fastened in line with each other When tightening the hardware refer to Figure 4A and tighten all bracket hardware in this ord...

Page 5: ...D 588 588 509 99 99 99 99 99 99 82 84 82 84 85 85 509 588 509 99 99 99 99 99 509 82 84 82 84 85 85 509 592 84 84 82 82 Leave out until Step 9 82 84 592 82 84 85 85 82 84 588 504 84 99 99 99 99 99 84 84 509 84 504 504 564 82 84 82 84 85 564 99 99 84 84 82 592 82 Leave loose for Step 5 ...

Page 6: ...is constructed entirely with 058 inch wall tubing This creates a tight transition between tubing sections with the closest possible fit and better ice loading characteristics than antennas constructed with thinner wall tubing Elements 3 4 5 and 6 have fiberglass center sections Reference figures 5A 5B and5C for proper assembly After mounting element end caps 53 77 punch a small hole 1 4 in the bot...

Page 7: ... 36 4 Tube 1 9 x 91 cm EV X79EV Aluminum 1 x 36 4 Tube 2 5 x 91 cm EW X9EW Aluminum 7 8 x 12 1 Tube 2 2 x 30 5 cm EX X9EX Aluminum 1 2 x 32 2 Tube 1 3 x 81 cm EY A34SEF Aluminim 1 x 5 1 4 2 Tube 2 5 x 13 3 cm T6 T6 15 M 20 3 4 2 Trap 52 7 cm TD TD 10 M 16 1 2 2 Trap 42 cm T2 T2 10 M 17 2 Trap 43 cm T4 T4 15 M 19 2 Trap 48 cm TD T4 T2 T6 Limited Warranty Cushcraft Corporation 48 Perimeter Road Manc...

Page 8: ...6D 6E 6F show the hardware required to attach each element to the element bracket Position each element center mark equidistant between each Cush A Clamp Leave the Cush A Clamps loose on the Log Cell Elements 3 4 5 6 until the feed straps are attached in Step 5 There are three sizes of Cush A Clamps Tighten each clamp until the element tubing can no longer rotate inside the Cush A Clamp The lock w...

Page 9: ...ed straps the tuning tube insulator and the matching network Figure 7 illustrates the 3 pairs of feed straps FL1 FL2 FL3 Refer to the Feed System Subassembly Parts List for the hardware required to install the straps Slide a feed strap insulator 832 on to each pair of feed straps to space and insulate the straps Elements may be rotated slightly during feed strap attachment Tighten Cush A Clamps on...

Page 10: ... listed in the Tuning Tube Insulator Subassembly Parts List Slide the insulator toward tuning tubes EZ until tube ends slide into the insulator holes Figure 7B Tighten bolts on boom bracket securing tuning tube insulator in place Reference Figure 7 and position the Tuning Tube Shorting Strap 555 1 2 inch from the tuning tube insulator Adjusting this strap will not have a significant effect on the ...

Page 11: ...mast plate 542 Attach mast plates 542 618 to mast using U bolts 3209 and V blocks 35 Place the boom on the boom shelf during installation Loosely attach the top boom bracket 506 to the mast plate 542 and to the lower boom bracket 506 as shown in Figure 8A This allows the boom to be moved back and forth for tower top element mounting When all elements are securely mounted to the boom and the feed s...

Page 12: ...eye of each turnbuckle Place three loose cable clamps 24 onto the cable end Reference Figure 9 and place the cable clamp saddle over the load bearing cable The load bearing cable is the cable that attaches to the boom end Feed the cable through a turnbuckle eye Run the cable back through the cable clamps Place three additional cable clamps on the end of the cable Feed the cable through the other t...

Reviews:

No comments

Related manuals for BIG THUNDER Series

Brand: KJM Pages: 5

Brand: One for All Pages: 2

Brand: Kenwood Pages: 7

Brand: Kenwood Pages: 4

Brand: Maximum Pages: 5

Brand: Somogyi Pages: 11

20-3CD Skywalker

Brand: CUSHCRAFT Pages: 7

Brand: 1 BY ONE Pages: 2

Brand: 1 BY ONE Pages: 2

Brand: 1 BY ONE Pages: 2

Brand: Hama Pages: 40

Portable Antenna

Brand: Snipe Pages: 7

Brand: M2 Antenna Systems Pages: 6

CM-36-55 Series

Brand: Panorama Antennas Pages: 2

BIS M-4006-034-00-ST4 Series

Brand: Balluff Pages: 2

GMR 430 XHD3 Series

Brand: Garmin Pages: 20

Brand: NCR Pages: 12

Brand: Camos Pages: 36

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands