Hygain DIS-72 HF BEAM, DISCOVERER 40M, 2 ELEMENTS, 2 BOXES Product Manual
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The Hygain DIS-72 is a two-element beam antenna designed for the 40-meter amateur band. With its stainless steel hardware and clamps, it can withstand winds up to 80 mph. This antenna features linear-loading for lower loss and greater radiation efficiency than coil-loaded antennas. It has a maximum gain of 7.3 dBi, a front-to-back ratio of 15 dB, and a VSWR of less than 1.2 at resonance.
advertisement
DIS-72
Discoverer
7-2 40-Meter 2-Element
HF Beam
Instruction Manual
Hy-gain
308 Industrial Park Road
Starkville, MS 39759
Please record the following information for your records: Date of Purchase:
Purchased From Price Paid
Please retain your copy of the Bill-of-Sale for Warranty claims.
TABLE OF
CHAPTER 1- GENERAL DESCRIPTION......................................................................................
1-1 General Description
.............................................................................................................................. 1-1
CHAPTER 2 - PRE-ASSEMBLY
INFORMATION........................................................................ 2-1 Preparation for Assembly
CHAPTER 3 - ASSEMBLY
.................................................................................................................. 3-1 Assembly of the
Boom-to-Mast Brackets and Boom........................................................................ 3-1 Element-to-
Boom Brackets.................................................................................................................. 3-2
Assembly of the Driven
Element......................................................................................................... 3-2 Tubing
Clamps........................................................................................................................................ 3-4
Assembly of the Reflector Element
.................................................................................................... 3-5 Driven Element and Reflector
Linear-Loading Wire Assembly.....................................................3-8 Beta Match Assembly
......................................................................................................................... 3-11 Lightning
CHAPTER 4 - INSTALLATION
..........................................................................................................4-1
Installation.........................................................................................................................................
.......4-1 Installation on a Crank-Up
Tower 4-1 Attaching the
CHAPTER 5 - SERVICE/PARTS
LIST.............................................................................................. 5-1 Service Information
................................................................................................................................5-1 Parts
List 5
LIST OF
Figure e
1 Assembly of Boom Tubes to Casting-to-Boom Bracket and Boom-to-Bracket
Clamp........................................................................................ 3-1 2 Element-to-
Boom Brackets ............................................................................................. 3-2 3
Assembly of the Driven Element
4
.................................................................................... 3-3
Tubing Clamps
................................................................................................................... 3-4
5 VSWR
Charts..................................................................................................................... 3-4
6 Front-to-Back Charts
........................................................................................................ 3-5
Pag
CHAPTER I - GENERAL INFORMATION
General Description
The Hy-Gain Discoverer 7-2 is an optimum spaced, two element beam for the 40 Meter Amateur band.
The Discoverer 7-2 incorporates the principles of linear-loading which results in lower loss and greater radiation efficiency than is possible with loading coils.
The Discoverer 7-2 features stainless steel hardware and clamps on all electrical and most mechanical connections.
WARNING
When installing your system, take extreme care to avoid any accidental contact with power lines or overhead obstructions.
Failure to exercise this care could result in serious or fatal injury.
SPECIFICATIONS
Mechanical
Total Number of
Elements........................................................................................................................
2
Maximum Element Length ...................................................................................44.8 ft. (13.7 m)
Boom Length..........................................................................................................22.6 ft. (6.9 m)
Boom Diameter.........................................................................................................2 in. (51 mm)
Turning Radius ........................................................................................................25.0 ft (7.6 m)
Accepts Mast ............................................................................. ..........1.625 - 2.5 in. (41-64 mm)
Maximum Wind Survival ...... ......................................................................80 mph (128.7 kmph)
Wind Surface Area.......................................................................................6.0 sq. ft. (0.56 sq. m)
Effective Moment*............................. ......................................................1412 ft.-lb. (192 kg-m)
Wind Load at 80 mph ..........................................................................................................154
Hardware.............................................................................................stainless steel hardware and clam
Electrical
Suitable Rotors.....................................................................................................Hy-Gain Ham
Maximum Gain.......... ............................................................................f)J dBi (4.3 dBd)
Front-to-BackRatio(maximum)…………...............................................................................15 dB
Number of Settings................................................................................................................... 3
Band Width
10 dB Front-to-Back..............................................................................................70 - 90 KHz 3:1
VSWR...............................................................................................................275 KHz @ 60 ft.
2:1 VSWR..........................................................................................................187 KHz @ 60 ft.
VSWR at Resonance ..............................................................................................less than 1.2
Nominal Impedance...................................................................................................50 ohms
Lightning Protection.......................................................................................... DC ground -3 dB
Beam Width ........................................................................77 degrees @ maximum Front-to-
*Effective Moment is defined as the product of the weight of the antenna and the turning radius.
This figure should be used when selecting, an appropriate rotator.
1-1/1-2 Blank
CHAPTER 2 -PRE-ASSEMBLY
Preparation for Assembly Corrosion Precautions
FOR OUR OVERSEAS CUSTOMERS:
The United States uses American units of measurement. If you use the Metric System, see
"Converting American Measurements to Metric"
Choose a large clear area to assemble your antenna. The area must be at least 23' x 45' (7m x
14m). If you assemble this antenna over a grassy area, precaution should be taken so that hardware is not accidentally lost during assembly. A concrete driveway is an excellent area for assembly.
TOOLS: The following
tools are required
for
'easy assembly of the Discoverer 7-2.
TYPE OF TOOL
Tape Measure, 12
foot ......
Adjustable Wrench, 8 inch
Nut Driver, 7/16
inch .......
Nut Driver, 3/8
Nut Driver, 5/16 in
Standard
Hand
NOTE: When unpacking your antenna, check inside of all tubing for parts
(smaller tubing etc.). To conserve space these smaller articles are sometimes put inside larger pieces.
Check all parts against the Parts List to make sure no parts are missing.
The Discoverer 7-2 antenna is designed to be relatively maintenance free for most environments. All hardware is made of passivated stainless steel, typically grade 304. The internal tooth-type lockwashers used in this antenna are grade 410 stainless steel, and are slightly magnetic. The element tubing clamps are grade
304 stainless steel. Most other metallic parts are aluminum. All insulators exposed to sunlight are made from U.V resistant black polyethylene or black Cycolac®.
We have supplied a 3 oz. tube of Penetrox®A-3 from Burndy Corporation for use as an antioxidant within element tubing assemblies. This prevents aluminum oxide from forming on the aluminum surfaces, especially in coastal environments.
Cut the cap off the tube of Penetrox®A-3. Have some rags available to clean off excess from tubing and hands. Be careful not to get this on your clothing.
Before assembling the tubing sections, abrade the mating surfaces with a wire brush or sandpaper. Apply the anti-oxidant to both surfaces, then assemble joint. Wipe off any excess material.
A light amount of clear lacquer or an acrylic spray
may be used to coat the exterior surface of the element assemblies if this antenna is to be installed near a sea coast. Tighten all joints securely before coating !
All tubing supplied with the Discoverer 7-2 telescopes together. Make all measurement to the given dimensions, plus or minus (+/-), no more than 1/8 inch! The assembly of this antenna will be easier if you read this manual completely through at least twice before beginning assembly. Allow at least 6 hours for assembly.
Double and triple check ALL dimensions after assembly.
Penetrox@ is
a registered trademark of Burndy Corporation
Cycolac@ is a registered trademark of Borg-Warner
2-1/2-2 Blank
CHAPTER 3 -
Assembly of the Boom-To-Mast Brackets and Boom
Attach the remaining boom sections (Item No.
50 ) and secure with the two (2) 1/4" - 20 x
21/2" bolts, internal lockwashers and nuts (Item
Refer to Figure 1 and begin as
Nos. 53, 32 & 34). Tighten all hardware securely.
Select the boom-to-bracket clamp and castingto-boom bracket (Item Nos. 2 and 3) and loosely assemble them on the boom sections (Item No. 51) with the two 5/16"-18 x
2 3/4" bolts, split lockwashers and nuts (Item Nos. 25, 27 and 26 and the four (4) 1/4" - 20 x 3/4" bolts, internal lockwashers and nuts (Item Nos 30, 32 and 34).
Item
No.
2
3
25.
26
27
30
Description
Bracket, Casting-to-Boom
Clamp, Boom-to-Bracket
Bolt, hex head, 5/16"-18 x 2 3/4"
Nut, hex, 5/16" -18
Lockwasher, split, 5/16"
Bolt, hex head, 1/4!' - 20 x 3/4"
Item
No.
32
34
50
51
53
Description
Lockwasher, internal, 1/4" - 20
Nut, hex, 1/4" - 20
Tube, Boom, 2" x 83" 83"
Tube, Boom, 2" x 54 3/4",
Bolt, hex head, 1/4" - 20 x 21/2"
Figure 1 Assembly of Boom Tubes to Casting-to-
Boom Bracket and Boom-to-Bracket Clamp
Element-To-Boom
To save time, loosely assemble both of the element-to-boom brackets and their appropriate hardware before beginning further installation of the antenna. See Figure 2. The different sized brackets can be identified by a number stamped into the surface of each bracket half. DO NOT tighten the bolts until instructed to do so.
Slide each assembled bracket over each boom end. Position the center of each bracket 3 inches from the boom ends. DO NOT tighten at this time.
NOTE: ASSEMBLY HARDWARE FOR THE
DRIVEN ELEMENT BRACKET IS THE SAME AS
USED ON THE REFLECTOR BRACKET.
Assembly of the Driven Element
Select the parts, as listed in Figure 3, and assemble them as shown. Before tightening the hardware, make sure that:
DE1(Item No. 10) is inserted completely into the driven element insulator.
DE1 (Item No. 10) is positioned with the small holes up and down.
DE1(Item No. 10) is positioned at 90 degrees from the boom-to-mast bracket, so that the element will be horizontal when installed on the mast.
AO-372S-B-007
DRIVEN ELEMENT DETAIL
Item
No.
4 17
28
30
32
33
34
48
REFLECTOR DETAIL
Description
Bracket, Element-to-Boom, #14 "
Insulator, Element, DE1
Bolt, hex head, 1/4"--20 x
3/8" Bolt, hex head, 1/4"--20 x 3/4" Lockwasher, internal,
1/4"-20 Nut, square, 1/4"--
20
Nut, hex, 1/4"--20
Figure 2 Element-to-
Boom Brackets
3-2
Tighten the anchor bolts on the element-toboom bracket (Item No. 28) last. This will ensure that the element will not slip on the boom.
AO- 372S -B-
4 1
5
0
1
Setting
Cw
MID
PHONE
" A "
Dimension
(Inches)
47
44
41
(mm)
1194
1118
1041
One Half DE I-ngth*
(Inches)
258
255
252
(m)
6.553
6.478
6.401
*Measured from boom edge to element tip.
2 9 - 3 2 -
Item
40
43
45
46
32
34
35
38
49
50
10
16
17
29
No.
Description
7 Tube, Element, DE4 and R4, 5/8" x 26"
8 Tube, Element, DE3 and R3, 7/8" x 55"
9 Tube, Element, DE2 and R2,1" and 51"
Tube, Element, DE1 and R1, 11/4" x 83"
Insulator, Element, 40 Meter
Insulator, Element, DEl
Bolt, hex head, 1/4!'- 20 x 11/2"
Lockwasher, internal, 1/4" - 20
Nut, hex, 1/4" - 20
Bolt, hex head, #10 - 24 x 2"
Nut, hex, #10 - 24
Lockwasher, internal, #10
Tubing Clamp
Caplug, black, 2"
Caplug, black, 7/16"
Tube, Element, DE5, 7/16" x 58"
Tube, Boom, 2" x 83"
Figure 3 Assembly of the
Driven Element
3-
Installation of Tubing
Select the #6 tubing clamp as shown in the chart. When installing the clamp, 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.
Refer to Figure 4 for tubing clamp assembly information. Tighten these clamps securely after setting Item Nos. 7 and 49 to their proper length.
The Discoverer 7-2 is supplied with dimensions for three (3) settings within the 40 Meter
Amateur band. The three (3) settings are entitled CW, MID, and PHONE. The CW setting is optimized for operation from 7.00-7.15 MHz.
The MID setting is optimized for operation from 7.05-7.25 MHz and the PHONE setting is optimized for operation from 7.15-7.30 MHz.
The VSWR, Front-to-Back Ratio, and Gain curves are shown in Figures 5, 6, and 7. From this information, choose one of the three settings to use.
Set the length of the DE5 section A to one of the lengths shown in Table 1.
-
Assembly of the Reflector Element
Select the parts listed in Figure 8 and assemble them as shown. Before tightening the hardware, make sure that:
R1 (Item No. 10) is inserted completely into the element-to-boom brackets.
R1 (Item No. 10) is positioned with the small holes up and down.
R1 (Item No. 10) is positioned so that the element will be horizontal when installed on the mast.
Tighten the anchor bolts (Item No. 28) last.
This will ensure that the element will not slip on the boom.
Refer to Figure 4 for tubing clamp assembly information. Tighten these clamps securely after setting Item Nos 6 & 7 to their proper length.
Set the length of the RS section ("B") to one of the lengths in Table 2. The reflector and driven element must both be adjusted to the same setting for proper operation.
Setting
CW
MID
PHONE
"B" Dimension
(Inches)
57
54
51
(mm)
1448
1372
1295
1/2 Reflector Length*
(Inches) (m)
267.5
264.5
261.5
*Measured from boom edge to element
6.795
6.719
6.642
Table 2
3-
Driven Element and Reflector Linearloading Wire Assembly
Select the parts listed in Figure 10. Refer to
Figures 10, 11, and 12 for assistance in assembling and identification of the linearloading wire assembly. Start assembling the linear-loading wire section (LLW) to the elements, beginning at the 40 meter insulator.
The 7/8" tubing clamp (Item 42) as shown in
Detail A of Figure 11 should be positioned as close as possible to the 40 meter insulator. Other clamps and wire positions will depend upon the final assembly of the linear loading wires.
Repeat this instruction for each half of the driven and reflector element.
Tighten all bolts securely!
Ite
No.
8
9
11
12
13
15
20
21
Description
Tube, Element, DE3 and R3, 7/8" x 55"
Tube, Element, DE2 and R2,1" x 51"
"Hairpin", LLW1, 69"
"Hairpin", LLW2, 28"
"Hairpin", LLW3, 63 1/2"
"Hairpin", LLW5, 63 1/2"
Bolt, round head, #6 - 32 x 2"
Nut, hex, #6 - 32
Item
No.
22
29
32
34
36
38
40
47
Figure 10 Linear-Loading Wire
Assembly
3-14
Description
Lockwasher, internal, #6
Bolt, hex head, 1/4" - 20 x 11/2"
Lockwasher, internal, 1/4" - 20
Nut, hex, 1/4" - 20
Bolt, hex head, #10 - 24 x
1/2 Nut, hex, #10 - 24
Lockwasher, internal, #10
Insulator, Rod Support
Item
No.
8 11
13
14
15
31
Description
Tube, Element DE3 and R3,7/8" x 55"
"Hairpin", LLW1, 69"
"Hairpin", LLW3, 631/2"
"Hairpin", LLW4, 31/2"
"Hairpin", LLW5, 631/2"
Bolt, hex head, 1/4" - 20 x 11/4"
Item
No.
32
34
36
38
40
42
Description
Lockwasher, internal, 1/4" -
Nut, hex, 1/4" - 20
Bolt, hex head, #10 - 24 x
Nut, hex, #10 - 24
Lockwasher, internal, #10
Clamp, Tubing, 7/8"
Figure 11 Attachment of Linear-Loading
Wire Assembly Near Insulator
3-15
Beta Match Assembly
Select the parts listed in Figure 13 and Detail
A and assemble them as shown. The beta shorting clamp should be flush with the ends of the beta rods. After attaching your coax cable to the feedpoint, tighten all hardware securely.
NOTE: Do Not allow the beta rods to touch the element-to-boom bracket.
5 r tg~~ CONDUC TOR)
38~
DETAI L
Ite
Jo.
10
17
18
37
38
40
Description
Tube, Element, DEJ and R1, 11/4" x 83"
Insulator, Element, DE1
Beta Rod, 1/4" x 72"
Bolt, hex head #10 - 24 x 1"
Nut, hex, #10 - 24
Lockwasher, internal, #10
Ite
No.
45
50
54
55
56
Figure 13 Beta
Match Assembly
3-17
Description
Caplug, black, 2"
Tube, Boom, 2" x 83"
Bolt, hex head, #10 - 24 x
Clamp, Beta Shorting
Clamp, Tubing, 11/4"
AO-3725-A-
BALUN
Lightning
For proper lightning protection you must ground your antenna supporting structure. Grounding will ensure noise-free operation and low SWR. 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 using #8 copper wire and commercial noncorrosive ground clamps.
Attachment of
Strip your coaxial cable (maximum 7 inches) and install solder lugs (not supplied) and connect to the driven element as shown in Figure 13. An RF choke made from 12 turns of RG-213/u coax in a
14 inch diameter circle is recommended with a split coax feed.
An alternative is to use a Hy-Gain BN-86 or BN-
4000 50 ohm balun for easy connection to your coax cable. "Pigtail" leads of #10 gauge stranded wire 7 inches long should be used from the balun to the tubing clamps.
Use a good quality 50 ohm coaxial transmission line such as Belden 8214 (foam) or Belden 8237,
8267 or 9251 (solid). Take extra care when soldering connectors to foam dielectric coaxial cable. Weather-proof all connectors, which will be exposed to rain of ice, with Coax-Seal© or another similar substance.
Attach the transmission line to the feedpoint and tighten the hardware securely. Tape the coax to the boom and mast to ensure good strain relief.
Boom Support Assembly
Select the 2 inch ID boom support clamps (Item
No. 62) and the boom support straps (Item No.
61) and assemble on the boom 100 inches from the center of the boom-to-mast clamp as shown in Figure 14. Tighten the bolts securely.
Select the 20 foot boom support cable and cut into two equal lengths with a large pair of wire cutters. Attach one end of each cable to the boom support straps using the thimbles (Item No. 59) provided. See Figure 14. Attach the turnbuckles
(Item No. 57) to the opposite ends of the cable as shown.
Measure the length of the assembled support cable and 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 tower. Also, tighten the turnbuckles so they will not vibrate loose. Route both cables along the boom and tape near the boom-to-mast bracket so they can be reached after the antenna has been mounted on the tower.
Coax-Seal® is a registered trademark of Universal Electronics, Inc.
3-18
Ite
No
32
34
52
57
58
59
Description
Lockwasher, internal, 1/4" - 20
Nut, hex, 1/4" - 20
Cable, Boom Suport,1/8" x 20'
Turnbuckle, Eye and Eye, 7/32" x 2"
Chain Link, Open-End, 3/16"
Thimble, Wire Rope, 5/32"
Item
No.
60
61
62
63
64
65
Figure 14 Boom Support
Assembly
Description
Mast Clamp, Boom Support, 15/8" I.D.
Strap, Boom Support
Clamp, Boom Support, 2" I.D.
Bolt, hex head, 3/8" - 16 x 2", tap
Nut, hex, 3/8" -16
Lockwasher, internal, 3/8"
3-13/3-14
Installation
CHAPTER 4 - INSTALLATION
Attaching the Antenna to the Mast
Make sure all tubing clamps and anchor screws are securely tightened. Also, make sure all betamatch hardware is tightened securely and free of corrosion.
IMPORTANT: The Discoverer 7-2 is a fairly large and heavy antenna and requires some consideration as to how you are going to get it to the top of the tower. Thoroughly read this section before beginning to install your antenna.
Installation on a Crank-Up Tower
Crank the tower down completely or as low as it will go, and block all sections from moving by using a 2" x 4" piece of wood or a solid iron bar for heavier towers. The block should be inserte$ through the lattice structure before the tower is completely down, then the tower can be cranked down until the block takes the weight off the winch.
Use a ladder to reach the top of the tower. Never climb the lattice structure of any Crank-up
Tower! Attach the mast to the tower and rotator.
(The cast aluminum boom-to-mast bracket should be installed on the mast as shown in
Figure 15.) Attach a gin pole to the tower to assist in lifting the Discoverer 7-2.
Assemble the two cast aluminum brackets (Item
No. l) on the mast at the desired height above your tower. Secure the two brackets together using the two (2) 5/16"-18 x 3" bolts, lockwashers, and nuts (Item Nos. 24, 27, & 26).
You may wish to drill a 5/16" hole through the cast brackets' center hole and through the mast and secure using a 5/16"-18 x 4" bolt, lockwasher, and nut (Item Nos. 66, 27, & 26).
This bolt will prevent the antenna from twisting on the mast in high winds. See Figure 1.
When the antenna reaches the mast bracket, the four (4) 5" bolts should be inserted through the holes in the mast bracket and secured using 5/16"
- 18 lockwashers and nuts (Item Nos. 23, 27 and
26). Tighten all bolts securely. You may wish to use a deep-well socket set to tighten these bolts.
The boom support cables may now be untaped from the boom and attached to the mast. Loosen the turnbuckles and slide the entire assembly up the mast until the boom support wires are straight. Tighten the 3/8" - 16 bolts securely.
Take up any slack in each wire with the turnbuckles, until the boom is level. When taut, tie off the turnbuckles. See Figure 14.
Attach the lifting rope to the balance point of the antenna. The lifting rope should be fed through the gin pole or other pulley arrangement attached to the tower. The other end should be at ground level, available to the ground crew for lifting.
Guide ropes may be loosely looped over the boom ends and used by the ground crew to guide the antenna away from the tower and ladder. The guide rope's two loose ends should be held by the ground crew so that the guide rope can be retrieved.
2 3 - 2 7 - 2 6
(Typical 4
(Optional on some products)
6 6 - 2 7 -
2 5 - 2 7 - 2 6
(Typical 2 places)
2
AO-372S-B-012
5
MAST -SUPPLIED BY CUSTOMER
(1
1
/. " to 2 yp" diameter)
Ite
No.
1
2
3
23
24
Description
Bracket, Cast Aluminum Mast
Bracket, Casting-to-Boom
Clamp, Boom-to-Bracket
Bolt, hex head, 5/16"-18 x "5
Bolt, hex head, 5/16"-18 x 3"
Item
No.
25
26
27
51
66
Figure 15 Attaching Boom-to-
Mast Bracket
Description
Bolt, hex head, 5/16" - 18 x 2 3/4"
Nut, hex, 5/16" - 18
Lockwasher, split, 5/16"
Tube, Boom, 2" x 54 3/4", swaged
Bolt, hex head, 5/16"-18 x 4"
Other Types of
When installing the Discoverer 7-2 on a guyed tower, you may wish to use a different guide system. If you have insulators on your guy wires, you will need to keep the antenna away from the guy wires as well as the tower. You may wish to use two ropes attached to the ground about 15 feet apart. These two ropes can then be used to slide the antenna on as it is also being lifted. The two ropes will need to be far enough from the tower base to allow some sag and still support the antenna away from the guy wires.
This completes your installation. Happy Dx'ing!
Installation of this product near power lines is dangerous. For your safety follow the instructions.
WARNING
4-2
CHAPTER 5 SERVICE /
PARTS LIST
Service Information
If you are encounter technical problems and need assistance, you should contact Hy-Gain Customer
Service Department.
All requests, inquires, warranty claims, or for ordering replacement parts, contact:
Hy-Gain
308 Industrial Park Road
Starkville, Mississippi 39759 USA
Phone: 662-323-9538
FAX: 662-323-6551
NOTE: Item Numbers may not necessarily be in numerical sequence and may appear more than one time, depending on how often a part is used or identical parts being placed in different parts packs.
Penetrox® is a registered trademark of Burndy
Converting American Measurements to Metric
Use this scale to identify lengths of bolts, diameters of tubes, etc. The American inch (") and foot (') can be converted to centimeters in this way.
1 inch (1") = 2.54 cm
1 foot (1') = 30.48 cm
Example: 42" x 2.54 = 106.7 cm
hy-gain®
LIMITED
hy gain
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.
1. The purchaser must retain the dated proof-of-purchase (bill of sale, canceled check,
credit card or money order receipt, etc.) describing the product to establish the validity of the warranty claim and submit the original or machine reproduction of such proofofpurchase to
hy-gain
at the time of warranty service hy-gain shall have the discretion to deny warranty without dated proof-of-purchase. Any evidence of alteration, erasure, or forgery shall be cause to void any and all warranty terms immediately.
2. hygain
agrees to repair or replace at
by gain's
option without charge to the original owner any defective 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
property by the use of any
hygain
liable for consequential damages to person or
hygain
products.
4. Out-of-warranty Service:
hygain will
repair any out-of-warranty product provided the unit is shipped prepaid. All repaired units will be shipped COD to the owner.
Repair charges will be added to the COD fee unless other arrangements are made.
5.
This warranty is given in lieu of any other warranty expressed or
6. hygain
reserves the right to make changes or improvements in design or manufacture without incurring any obligation to install such changes upon any of the products previously manufactured.
7. All hy-gain
products to be serviced in-warranty or out-of-warranty should addressed to
hygain, 308
Industrial Park Road,
Mississippi 39759, USA
and must be accompanied by a letter describing the problem in detail along with a copy of your dated proof-of-purchase.
8. This warranty gives you specific rights, and you may also have other rights which vary
from state to state.
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