Hy-Gain Super Thunderbird TH-7DX Instruction Manual Download Page 29

Page: 29 / 31

Item

No
.
38
39

Part No.

Parts List (Continued)

Description_ . _ Qty

872200-1

Parts Pack TH7DX,1/4" Hardware, Stainless Steel (Continued)

..:. 554099

Nut, hex, 1/4" - -20:::...............::......................................:::............75

562961

Lockwasher, internal, 1/4" ........................................................105

872201-1

Parts Pack TH7DX, #10 Hardware, Stainless Steel ....................1

500157

Bolt, hex head, #10 - 24 x 2......................................................... 12

500158

Bolt, hex head, #10 - 24 x 1/2" .................................................„,.9

(Not Used)
(Not Used)

554071

Nut, hex, #10 -24........................_........................_.......................26

40
41
42
43
44
45 '

(Not Used)

46
48
49

565697

Lockwasher, internal, #10.......................................................... 30

500159

Bolt, hex head, #10-24 x 1 1/2" ...................................................... 1

540087

U-Bolt, #10-24 x 2 1/2" x'2 3/4.................... ...................................

878199

Parts Pack

TH7DX, Compression Clamps ..................................... 1

(Not Used)

358756

Clamp, Tubing No. 6 _:::._...........__._.............................................18

358757

Clamp, Tubing Nt. 10

358758

Clamp, Tubing,

No. 16....;

871889

Parts Pack TH7DX,

Straps

168695

Clamp, Tubing, 1/4" ................. ............. .................................4

170452

Crossover Strap, TH7DX ............................................................. 2

170453

Beta Feed Jumper, TH7DX....................._._........_.....................'...2

170454

Feed Strap, TH7DX............................................_............_............2

171077

Strap, Boom=to-Beta, 2" I.D......................................................... 1

171131

Sleeve, Beta Shorting ......_....._.......................................................1

5
2
5
3

56 57
.58 59
60 61
62

171162
177588

Strap, Beta Shb' ng, 3/8" radius ..................................................2

Pigtail Wire, 7"...............................................................................2.

878561

Pigtail Wire,- Jr. 6 1/2".................................._.................................2

871890

Parts Pack TH7DX, Insulators ......................................................1

455625

Caplug, 2..._...................:__................................................................2

455644

Caplug, 7/16" .............................................. ........................1.4

465595

Insulator, Beta Support `(Bottom) ..... ......................................... 6

465600

465833

Insulator, Driven -Element...._........................:..:.._.........................4

871886

Parts Pack, Boom Support..............................................................1

351243

Turnbuckle, 7/32" x 2"........................................_.........._._..............2

351244

Chain Link, open end, 3/16" ......................................................... 2

358731

Thimble, Wire Rope, 5/32", ss ......................__...._.........._.........._..4

381100

Mast Clamp, Boom Support, 1 5/8" I.D....................................... 2

378216

Strap, Boom Support, ss................_....._..............._.........__..............2

378208

Boom Clamp,. Boom Support, 2" I.D, ss. ..................................... 2

Summary of Contents for Super Thunderbird TH-7DX

Page 1: ......

Page 2: ......

Page 3: ...Measurements to metric 7 2 Bolt and Nut Sizes 7 2 Parts List 7 3 LIST OF ILLUSTRATIONS Figure Pag 1 Boom to Mast Bracket 3 1 2 Assembly of Boom 3 2 3 Element to Boom Brackets 3 3 4 Tubing Clamps 3 5 Trap Detail 3 6 Overall View Element Assembly and Antenna Dimensions 3 7 7 Rope Dampener 3 8 8 Overall View of Beta Match and Phasing Tubes 3 9 9 Crossover Straps 3 10 Pigtail Assembly to Rear Driven E...

Page 4: ...or additional strength The antenna is designed to fit masts from 2 to 2 1 2 in diameter and can be rotated with HyGains s HDR 300 A Ham IV or T2X rotators Projected Area is the actual flat projected area of either the elements or boom highest value without any shape factor included this area may be used with EIA TIA 222 D and later versions and with the UBC formulas to determine tower and mast loa...

Page 5: ...lied with the TH7DX telescopes together Make all measurements to the given dimensions plus or minus no more than 1 8 inch The TH7DX is a highly sophisticated and com plex array consisting of more than 700 parts The superb performance engineered into this array is totally dependent on accurate assembly All components and hardware must be used as directed in the instruction manual The key to success...

Page 6: ... hole and through the mast and secure using a 5 16 18 x 3 3 4 bolt lockwasher and nut Item Nos 30 31 29 This bolt will prevent the antenna from twisting on the mast in high winds See Figure 1 The four 4 5 inch bolts will be installed when the antenna is installed on the mast NOTE The use of heavy motor oil on stainless steel threads will prevent galling of threads Slip the two remaining boom secti...

Page 7: ...t toboom brackets Item No 85 Assemble these brackets on the boom 35 inches to the right of the center of the mast bracket Refer to Figure 3 DO NOT tighten the bolts at this time 10 Meter Reflector Select a pair of the smallest element to boom brackets Item No 83 These are marked with a number 4 Assemble these brackets on the boom 581 2 inches to the right of the rear driven element brackets Refer ...

Page 8: ...meter director brackets The rear set should be 48 inches to the right of the 10 meter reflector brackets Refer to Figures 3 and 6 DO NOT tighten now AO 391S B 016 Item Item No Description No Description 32 Bolt hex head 1 4 20 x 3 8 39 Lockwasher internal 1 4 34 Bolt hex head 1 4 20 x 3 4 71 Insulator Driven Element 37 Nut square 1 4 20 83 Bracket Element to Boom 4 38 Nut hex 1 4 20 84 Bracket Ele...

Page 9: ...alling the clamps place the clamp near the tube end with the top of the clamp over the slot in the tube as shown in Figure 4 After adjustment of the tubing lengths tighten the clamp with a 5 16 inch nut driver socket or open end wrench until the tubing will not twist or telescope DO NOT overtighten ...

Page 10: ...d end of the FDE1 then slip the insulated end of the FDE 1 into the bracket which is 20 inches to the left of the mast bracket Tighten the eight 8 bolts to hold the element in place Install a No 16 tubing clamp on the slotted end of the FDE 1 and insert the unslotted end of the FDE 2 11 8 x 48 to the dimension shown in Figure 6 Tighten the No 16 tubing clamp securely and recheck the FDE 2 Assemble...

Page 11: ...he left of the Front Driven Element Tighten the eight 8 bolts to hold the element onto the boom Assemble the remainder of the 15 20 meter reflector as shown in Figure 6 using No 16 10 and 6 tubing clamps Use 15 meter trap Part Number 878694 and install with the drain holes facing the ground Use Figure 5 and Detail A as guides Tighten all element tubing clamps and recheck all dimensions Assemble th...

Page 12: ...48 5 R2 2 D2 2 190006 5 8 x 26 16 D2 3 D3 3 175165 7 16 x 52 6 R2 3 175512 7 16 x 42 3 4 17 D3 2 190312 11 8 x 317 8 7 RDE 1 D3 1 190900 11 4 x 48 18 15 Meter Trap 878694 15 Meter Trap 8 RDE 2 190311 11 8 x 36 19 10 Meter Trap 878749 10 Meter Trap 9 RDE 3 190603 1 x 8 20 15 Meter DE Trap 878637 15 Meter DE Trap 10 FDE 1 190908 11 4 x 35 21 10 Meter Dir Trap 872095 10 Meter Dir Trap 11 FDE 2 190300...

Page 13: ...eft of the 15 meter director Tighten the eight 8 bolts to hold the element onto the boom Assemble the remainder of the 10 20 meter director as shown in Figure 6 using No 16 10 and 6 clamps Use 10 meter director director trap Part Number 872095 and install with the drain holes facing the ground Use Figure 5 and Detail A as guides Tighten all element tubing clamps and recheck Final Element Assembly ...

Page 14: ...and square nuts DO NOT tighten completely at this time See Figure 9 Select the remaining two 2 phasing tubes two 2 beta support clamps two 2 beta support insulators two 2 beta top insulators and as sociated hardware as shown in Figure 9 Assemble the front pair of phasing tubes to the boom as shown in Figure 9 Rotate the tubes so that the drilled holes are away from the boom Slide the assembly on t...

Page 15: ...on No Description 26 Bolt hex head 5 16 18 x 5 57 Crossover Strap TH7DX 34 Bolt hex head 1 4 20 x 3 4 63 Clamp Beta Support 37 Nut square 1 4 20 69 Insulator Beta Support Bottom 39 Lockwasher internal 1 4 70 Insulator Beta Support Top 40 Bolt hex bead 10 86 Phasing Tubes 3 4 x 23 44 Nut hex 10 24 89 Clamp Boom to Bracket 46 Lockwasher internal 10 90 Bracket Casting to Boom Figure 9 Crossover Strap...

Page 16: ... from the center of the FDE bracket The final dimension will depend on the attachment of the beta tubes and the phasing tubes through the beta feed jumper Select the beta feed jumper straps feed straps and associated hardware as shown in Figure 11 Assemble the beta feed jumper straps and feed straps to the phasing tubes with two 2 1 4 20 x 3 4 bolts lockwashers and square nuts Item Nos 34 39 37 Se...

Page 17: ...eta Support 48 Bolt 10 24 x 11 2 hex 65 Pigtail Wire Jr 61 2 49 U Bolt 10 24 x 21 2 x 2 3 4 69 Insulator Beta Supt Bottom 56 Clamp Tubing 11 4 70 Insulator Beta Support Top 58 Beta Feed Jumper TH7DX 80 Balun BN 86 50 ohm 59 Feed Strap TH7DX 86 Phasing Tubes 3 4 x 23 60 Strap Boom to Beta 2 I D 87 Beta Tubes 3 4 x 70 61 Sleeve Beta Shorting DETAIL A BETA SUPPORT CLAMPS AND INSULATOR ASSEMBLY AO 391...

Page 18: ... support cable and turnbuckle for each side The lengths should be within 1 2 Allow approximately 10 12 inches of wire to tie off the turnbuckle late as shown in Figure 12 Attach the chain link Item No 74 and mast strap Item No 76 to each turnbuckle as shown Install the 3 8 x 2 bolt lockwasher and nut in each half so that they will be available after the antenna has been hoisted to the top of the t...

Page 19: ...ex head 1 4 20 x 3 4 37 Nut square 1 4 20 39 Lockwasher internal 1 4 Item No Description 74 Chain Link open end 3 16 75Thimble Wire Rope 5 32 ss 76 Mast Clamp Boom Support 15 8 I D 77 Strap Boom Support ss 78 Boom Clamp Boom Support 2 I D ss 81 Cable Boom Support 1 8 x 20 Figure 12 Boom Support Assembly ...

Page 20: ...n bar for heavier towers The block should be inserted through the lattice structure before the tower is completely down then the tower can be cranked down until the block takes the weight off of the winch Use a ladder to reach the top of the tower NEVER CLIMB THE LATTICE STRUC TURE OF ANY CRANK UP TOWER At tach the mast to the tower and rotator The cast aluminum boom to mast brackets should be ins...

Page 21: ......

Page 22: ...oom and mast to ensure good strain relief Lightning Protection VSWR Curves For proper lightning protection you must ground your antenna supporting structure Grounding will ensure noise free operation and low VSWR A proper ground consists of a 1 2 x 8 copper clad steel ground rod driven into the ground approximately 12 inches away from the concrete tower base Connect the tower to the ground rod usi...

Page 23: ......

Page 24: ...sure proper operation The front to back ratio may be checked by using a steady carrier transmitted by a local station at least a 1 2 mile away The front to back ratio may be affected by the proximity of metallic structures or guy wires less than 10 feet below the antenna This completes your installation of the TH7DX Happy DX ing VSWR Type of VSWR Date Date Frequency VSWR VSWR Date Date VSWR VSWR 1...

Page 25: ...mblies if heavy oxidation is like ly to occur Do not use any coating on trap as semblies If installed near a sea coast the solder lugs on the pigtail wires should not touch the aluminum tube or clamp directly Each solder lug should be between 2 stainless steel flatwashers Tighten these connections securely and completely coat with Scotchkote or RTV The internal tooth lockwashers should be replaced...

Page 26: ...dering replacement parts contact the Hy Gain Customer Service Department Hy Gain You should fully research your problem by going 308 Industrial Park Road through the Troubleshoting Guides in Chapter 6 Starkville Mississippi 39759 before you contact the Customer Service You should retain your sales receipt or other proof of purchase for antennas that are still under warranty NOTES ...

Page 27: ... Part Number and type of trap is printed on each part The hardware packs are divided into smaller packs most containing only one size of hardware To identify the size of the element compression clamps please refer to Figure 4 page 8 To identify the straps please refer to Figures 9 12 pages 14 18 To identify the insulators please refer to Figures 3 and 11 Converting American Measurements to Metric ...

Page 28: ... 2 14 174861 Tube aluminum Dl 7 8 x 53 2 15 174865 Tube aluminum D2 7 16 x 48 2 16 175165 Tube aluminum D2 3 D3 3 7 16 x 52 4 17 190312 Tube aluminum D3 2 1 1 8 x 317 8 2 18 878694 Trap 15 meter 2 19 878749 Trap 10 meter 4 20 878637 Trap 15 meter driven element 4 21 872095 Trap 10 meter director 2 22 464723 Trap cap used on all traps 2 per trap 872199 Parts Pack TH7DX 3 8 5 16 Hardware Stainless S...

Page 29: ...bing No 16 871889 Parts Pack TH7DX Straps 168695 Clamp Tubing 1 4 4 170452 Crossover Strap TH7DX 2 170453 Beta Feed Jumper TH7DX _ _ _ 2 170454 Feed Strap TH7DX _ _ 2 171077 Strap Boom to Beta 2 I D 1 171131 Sleeve Beta Shorting _ _ 1 5 5 2 5 3 56 57 58 59 60 61 62 171162 177588 Strap Beta Shb ng 3 8 radius 2 Pigtail Wire 7 2 65 878561 Pigtail Wire Jr 6 1 2 _ 2 871890 Parts Pack TH7DX Insulators 1...

Page 30: ...5919 Bracket Element to Boom 13 4 85 165920 Bracket Element to Boom 14 4 86 170447 Phasing Tubes 3 4 x 23 87 170456 Beta Tubes 3 4 x 70 88 171166 Tube Boom 2 x 691 2 89 172732 Clamp Boom to 90 172735 Bracket Casting to 50 691138 Rope polyethylene 5 32 x 12 91 850050 Coax Seal 92 850091 Penetrox A 3 Penetrox is a registered trademark of the Bumdy Corporation Coax Seal is a registered trademark of U...

Page 31: ...fective product under warranty provided the product is returned postage prepaid to hygain with a personal check cashiers check or money order for 8 00 covering postage and handling 3 Under no circumstances is hygain liable for consequential damages to person or property by the use of any hygain products 4 Out of warranty Service hygain will repair any out of warranty product provided the unit is s...

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