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Related Manuals for Hy-Gain LP-1009A
Summary of Contents for Hy-Gain LP-1009A
- Page 1 LP-1009A / LP-1009AN Log Periodic Antenna Instruction Manual...
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Page 3: Table Of Contents
TABLE OF CONTENTS Page CHAPTER 1 General Information .............…………...........1-1 General Description ........................1-1 Theory of Operation........................1-2 Preparation for Assembly........................ l-2 Installation Planning ........................1-3 Corrosion Precautions........................l-3 Assembly of the Element-to-Boom Brackets on the Boom............l-5 Instalation of Tubing Clamps on Elements..................l-6 Element Assembly ..........................1-8 Feedline Assembly.......................... - Page 4 LIST OF ILLUSTRATIONS FigurePage Boom-to-Mast Bracket....................l-4 Boom Assembly......................l-5 Element Location .......................1-6 Element-to-Boom Bracket..................l-6 Element Tubing Clamps....................l-7 Rope Dampening .......................1-8 Element Tubing Descriptions..................l-9 Exposed Tubing Lengths, LP-1009, American............1-10 Exposed Tubing Lengths, LP-1009, Metric.............1-11 Feedline Assembly, Front Section ................1-12 Feedline Assembly, Middle Sections...............1-13 Feedline Assembly, Rear Section ................1-14 Installing Elements on the Boom................1-15...
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Page 5: General Information
CHAPTER 1 General Information General Description All-stainless steel hardware and clamps are used The LP-1009 log-periodic antenna is a medium on all electrical and mechanical connections of gain unidirectional antenna with an instantaneous the LP-1009. The LP-1009 may be rotated with bandwidth of 13 to 30 MHz under 2:1 VSWR. -
Page 6: Theory Of Operation
Theory of Operation Preparation for Assembly The design of the LP-1009 is based on a 12 The United States uses American units of element log-periodic dipole array with a 'TAU' measurement. Please see page 2-8 of this manual of 0.896 and a'SIGMA' of 0.05. These for American-to-metric conversion information. -
Page 7: Corrosion Precautions
The LP-1009 also requires a suitable rotator, if not installed in a fixed azimuth. Suitable rotators include Hy-Gain models T2X and HDR- 300. Corrosion Precautions The LP-1009 antenna is designed to be relatively maintenance free for most environments. All hardware is made of passivated stainless steel, typically grade 304. - Page 8 A light amount of clear lacquer or an acrylic Select the boom-to-mast bracket and clamp parts. spray may be used to coat the exterior surface of Loosely assemble them on the boom ends as the element assemblies if this antenna is to be shown in Figure 1.
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Page 9: Assembly Of The Element-To-Boom Brackets On The Boom
Attach the boom and bracket assembly to these Tighten these four bolts just enough to hold the two brackets using the four (4) 5/16"-18 x 5" weight of the antenna. bolts, lockwashers and nuts (77, 82, 83). If you have problems aligning all of the holes in the Slip the remaining boom sections over the brackets, you may wish to carefully run a 5/16"... -
Page 10: Instalation Of Tubing Clamps On Elements
You may want to mark the bracket location on the After adjustment of the tubing lengths, tighten the boom with an indelible marker. You can quickly clamp with a 5116 inch nut driver, socket or open realign the brackets to these marks when you end wrench until the tubing will not twist or tele- install the elements in a later step. -
Page 11: Element Tubing Clamps
Figure 5 Element Tubing Clamps... -
Page 12: Element Assembly
Element Assembly Use Figure 7 to select the tubing for each Select the 5/32 inch black rope. Cut it into 24 element. If you previously sorted the tubing, this equal lengths of 5'(1.5 m) each. Slip each rope step will be much easier. Each element uses two piece into the outside tube (7/16") of each identical element halves. -
Page 13: Feedline Assembly
Feedline Assembly NOTE: The pigtail wires must alternate from Select the eight (8) 3/4" feedline tubes, six (6) crossed to not-crossed, starting at the rear of the 7/8" x 2" splice tubes, pigtail wire assemblies, phasing tube assembly and progressing toward support clamps, insulators and hardware as the front. -
Page 14: A Exposed Tubing Lengths, Lp-1009, American
Figure 8A Exposed Tubing Lengths, LP-1009 American... -
Page 15: Exposed Tubing Lengths, Lp-1009, Metric
Exposed Tubing Lengths, LP- 1009 Metric... -
Page 16: Beta Tube Assembly
Lay the assembled feedline tubes above the Beta Tube Assembly boom with the support insulators in the correct Select the two 3/4" x 18" Beta Tubes, support positions. Attach the support clamps with the clamps, insulators, shorting clamps and hardware appropriate hardware as shown in Figure 9-11 and assemble to the bottom side of the boom as Detail A. -
Page 19: Installing Elements On The Boom
Installing Elements on the Boom You should now have 24 completely assembled Align each element so that it is parallel to the element halves. If you have both ends of the ground and perpendicular to the temporary mast. boom supported, you may start with element #1 If you have a flat assembly area, you can use at the front of the boom. -
Page 20: Boom Support Assembly
Select the rear boom support assembly, two (2) Boom Support Assembly 1/4"-20 x 13/4" bolts, 1/4" lockwashers, and Select the front boom support assembly, two (2) 1/4"20 nuts. Assemble these to the rear boom 1/4"- 20 x 1 3/4" bolts, 1/4" lockwashers, and support tubes on the boom. -
Page 21: Final Inspection
Slide the assembled guy straps up the mast until Final Inspection the boom is level with the ground. Equalize the Make sure all connections are securely tightened, tension in each cable by tightening the recheck element lengths and spacings, and ensure turnbuckles. -
Page 22: Antenna Installation
CHAPTER 2 Antenna Installation IMPORTANT: The LP-1009 is a large and heavy Installation on Guyed Towers antenna and requires some consideration as to When installing the LP-1009 on a guyed tower, how you are going to get it to the top of your you may wish to use a guide system. -
Page 23: Attaching The Antenna To The Mast
Attach the transmission line to the BN-4000 balun The boom support cable assemblies may now be and tighten the connector securely. Tape the coax untaped from the boom and attached to the mast. to the boom about every 3 feet (1 m) and provide Slide the mast guy straps up the mast until the suitable strain relief. -
Page 24: Vswr Curves
50 and 100 feet above ground. DO NOT Hy-Gain recommends the Bird Model 43 TRY TO TUNE THIS ANTENNA FOR LOW directional watt meter to measure reflected power V S WR A T GROUND LEVEL. -
Page 25: Operation
Record this information for stations may be used where applicable. future comparison. Record the antenna azimuth and other environmental factors along with the This completes your installation of the Telex/ VSWR. Check the VSWR periodically to ensure Hy-Gain LP-1009 antenna. proper operation. -
Page 26: Troubleshooting
Troubleshooting If you have high VSWR on all frequencies, look If you encounter problems with the operation of for shorts, opens or water in the coaxial feedline. your LP-1009, follow these steps to isolate the cause of your problem. The balun and coaxial cable may also have been damaged by lightning. - Page 27 Parts List Item No. Part No. Description 102734 Bracket, cast aluminum................2 165919 Bracket #13, 2 to 1 1/4" hvy ..............12 165920 Bracket #14, 2 to 1 1/2" hvy ..............16 171533 Tube, 7/16" x 57 7/8" ................2 171539 Boom, tube, 2" x 54 3/4"..............1 172732 Clamp, boom-to-bracket ........
- Page 28 Parts List Item No. Part No. Description Qty 870535 Parts Pack, 1009 Ins. #1...............1 455625 Caplug, black ...................2 455644 Caplug, 7/16", black...............24 463767 Insulator, 1 1/4" OD.................8 465595 Insulator, support, bottom ..............11 465600 Insulator, support, top ..............11 870536 Parts Pack, 1009 Insulator, #2.............1 465833 Insulator 1 1/2"...
- Page 29 Parts List (continued) Item No. Part No. Description Qty 870543 Parts Pack, 10009 Hardware, 5/16" .............1 500349 Bolt, hex head, 5/16" x 5", stainless steel ........5 500392 Bolt, hex head, 5/16" x 3", stainless steel ........3 506966 Bolt, hex head, 5/16" x 2 1/2", stainless steel ........2 506968 Bolt, hex head, 5/16"...
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