Hy-Gain AV-680 Instruction Manual
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Hy-Gain AV-680 Instruction Manual

Hy-Gain AV-680 Instruction Manual

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MODEL AV-680
INSTRUCTION MANUAL
308 Industrial Park Road
Starkville, MS 39759 USA
Ph:(662) 323-9538 Fax: (662) 323-6551
925-0680-REV A2
Made in USA

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Summary of Contents for Hy-Gain AV-680

  • Page 1 MODEL AV-680 INSTRUCTION MANUAL 308 Industrial Park Road Starkville, MS 39759 USA Ph:(662) 323-9538 Fax: (662) 323-6551 925-0680-REV A2 Made in USA...

  • Page 2: Theory Of Operation

    Introduction Hy-Gain is proud to deliver the AV-680 Nine Band Vertical. Drawing on our many years of Amateur Radio HF and VHF antenna design experience, we have produced a well- engineered antenna capable of maximum efficiency, unmatched performance, and superior construction.
  • Page 3 AV-680 is at DC ground potential for static drain. This is accomplished by a radio frequency choke in the matching circuit. The center radiator of the AV-680 supports 1/4 wavelength stubs for 6 , 10, 12 and 17 meters. The stubs are placed approximately one tenth of a wavelength (electrically 1/8 wavelength) above the AV-680 base.
  • Page 4 Antenna Mast The recommended support mast for the AV-680 is steel water pipe between the sizes of 1-3/4" OD to 2 1/2" OD and with a length that will place the antenna base at a safe height. Do not use thin walled conduit, aluminum tubing, or "TV" mast. The AV-680 is designed to operate at a height of 8 or more feet for proper performance.
  • Page 5 Tools Required For Assembly • 1/4" Standard Blade Screwdriver • 7/16" Nut Driver • #1 Phillips Screwdriver • 7/16" Open End Wrench #2 Phillips Screwdriver • 10 nun Open End Wrench 3/8" Open End Wrench • Tape Measure 20' 3/8" Nut Driver •...
  • Page 6 Parts Bag #2 17-AV640-3 Parts Bag #3 80-AV680-1 AV680 Matching Unit 810-0620-1 Base Insulator 1-1/4" x 12" 11-0680-1 AV-680 Coil Assembly 810-0640-5 Base Tube 1-1/2" x 12" 810-0640-2 Radiator Section 1-1/2" x 72" 810-0640-3 Radiator Section 1-3/8" x 75" 810-0640-4 Radiator Section 1-1/4"...
  • Page 7 17-AV680-4 Part Number Part Description ID Number Quantity 925-AV680 AV-680 Instruction Manual 925-0006 Hy-Gain Warrant Card 784-1780 Warning Label 17-AV680-1 Parts Bag #1 Part Description ID Number Quantity 656-0375S 6-32 x 3/8" Screw SS 656-0500S 6-32 x 1/2" Screw SS 656-1250S 6-32 x 1-1/4"...

  • Page 8: Aluminum Parts

    Plastic parts Single Stub Insulator 90 Degree Stub Insulator P/N 738-0680-3 Qty (5) 180 Degree Stub Insulator P/N 738-0680-1 Qty (2) ID # P3 P/N 738-0680-2 Qty (2) ID # P1 ID # P2 Aluminum parts Radiator Clamp Bracket P/N 735-1610 Qty (16) Single Stub Base Bracket ID # RB P/N 735-1618 Qty (2)
  • Page 9 BD tubing section into BC. Tighten hose clamp. ( ) Place (1) hose clamp (HC 1) over the slotted end of tubing section BD. Insert AV-680 Coil Assembly (LI) 4 inches into tubing section BD. Tighten hose clamp.
  • Page 10 TASK III Stub Insulator Assembly ( ) Place the AV-680 Radiator on a flat surface such as a driveway or garage floor. This will aid in mounting the Stub Insulators by keeping them aligned with each other. ( ) Refer to Figure D for Stub Insulator Assembly. There are three types of stub insulators: Single, 90 Degree and 180 Degree.
  • Page 11 ( ) SIX METER STUB: The six meter stub consist of only the first section (E1) and the coupler (CP) and is attached to the lowest metal clamp on the antenna “Figure C” Slide the coupler into the top of the stub and use a hose clamp to secure it. This rod will be used to adjust the length of the stub.
  • Page 12 TASK VI Matching Unit Mounting ( ) Refer to Figure H for the mounting location of the Matching Unit (MU). Use the pair of bolts through the Base Insulator (IN) to mount the MU as shown in Figure H. Remove the (2) 1/4-20 nuts (N5) from the (2) 1/4-20 x 2" bolts (S8) previously installed.
  • Page 13 J for more information. Installation The AV-680 antenna should be mounted at least 8 feet above ground. The main reason for this minimum height is safety. The AV-680 will work well at a minimum height of five feet but precautions from dangerous voltages must be taken.
  • Page 14 The AV-680 may be roof mounted on a tripod or similar support. Keep the AV-680 base a minimum of 5 feet above the roof surface. This minimum dimension is the same for any roof material type. Attach a suitable ground wire to the support mast as mentioned in the Grounding section of this manual.
  • Page 15 Maintenance The AV-680 should be inspected mechanically at least once a year. Normal wear and tear varies significantly with climate. Anti-Oxidation paste such as NoAIOX® or others can be applied to the radiator tubing sections.
  • Page 16 The packing material used to ship this antenna is designed to prevent shipping damage. Please reuse the original shipping carton if possible. Hy-Gain will not be responsible for shipping damage on returned items with improper packing.
  • Page 17 INSERT 3 INCHES Connect jumper to tube AV-680 L1 S8,N5 4 places Mount ring before tubing FIGURE A AV-680 Center Radiator Assembly...
  • Page 18 6 Meter Stub Base Bracket 10&12 Meter Stub Base Bracket ALUMINUM 17 Meter Stub Base Bracket and 6 Meter Stub Insulator BLACK PLASTIC FIGURE B Assembly of Stub Base Brackets...
  • Page 19 17 Meter Stub Base Bracket and 6 Meter Stub Insulator 90 degree offset on this bracket 10&12 Meter Stub Base Bracket 56” 47” 6 Meter Stub Base Bracket 35” FIGURE C Installation of Stub Base Brackets...
  • Page 20 90 Degree Stub Insulator Three Stub Insulator Single Stub Insulator FIGURE D Installation of Stub Insulators...
  • Page 25 S6 (8 places) N1 (2 places) S5 (2 places) WL 72” stainless whip (7 places) install whips after matching box (stainless ring with tabs) One slot on the radial ring will be left empty. This empty slot will make room for the matching box assembly.
  • Page 26 Install the Antenna side first and tighten. You will not be able to access the nuts after the mast is installed. Top u-bolt will sit between these two bolts. Rotate bracket until bottom bolt does not interfere with mount. Parts 4 X 555747 5/16 x 18 nut SW2 4 X 564792...
  • Page 27 80 meter spokes 48” x 8 Trim 80 meter spokes with tap at top of coil. Set to 4 MHZ or your highest operating point on 80. Use the tap on the coil to tune the antenna to your frequency of choice. 36”...
  • Page 28 S6 (8 places including 2 already mounted) Un-tighten the pre-installed screws and insert the rest of the screws and nuts loosely. Insert the spokes and tighten all eight screws. 1/8 AL spoke 48” (8 places) (Aluminum ring without tabs) Pre-mounted 80 Meter Capacity Hat Ring S6 8 places.
  • Page 29 Notes...

  • Page 32: Limited Warranty

    Warrants to the original owner of this product, if manufactured by hy-gain and purchased from an authorized dealer or directly from hy-gain to be free from defects in material and workmanship for a period of 12 months for rotator products and 24 months for antenna products from date of purchase provided the following terms of this warranty are satisfied.

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