Hy-Gain GPG-1 User manual

308 Industrial Park Road
Starkville, MS 39759 USA Ph:
[phone] FAX: [phone]
GPG
-
1
1/4-Wave Ground Plane Antenna
162-174 Mhz Frequency Range
Instruction Manual
General
This antenna is a 1/4-wave ground plane that
operates in the 162-174 MHz range. The antenna
terminates with a type `N" connector and is fed
with a 50 ohm coaxial cable.
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.
Assembly Instructions
Refer to Figure 1 Cutting Chart. Trim the radiator
to the correct len
g
th for the fre
q
uenc
y
of o
p
eration.
Remove the four (4) radials (Item 11), from the
shipping container and attach two of the radials to
the base bracket (Item 1) at the two open spaces
(where there is no factory installed hardware). Use
the #10 x 3/4" screw (Item 8), nut (Item 7),
flatwasher (Item 6), internal lock-washer (Item 5),
and external lockwaasher (Item 4) as shown in
Figure 2. Tighten hardware securely.
After these two radials are fastened securely as
shown, remove the two #10 hex nuts from the #10
bolts (factory installed). Attach a#10 external
lockwasher (Item 4), a radial (Item 11), flatwasher
(Item 6), internal lockwasher (Item 7). Refer to
Detail A. The four radials should be spaced 90
degrees apart.
NOTE: Its is important to install the hardware
exactly as shown. This will prevent movement of
the radials.
Install the caplug (Item 13) on the top of the
radiator. Be sure it is pressed all the way on.
Connect your coax from your communication
equipment to the type `N' connector on the bottom
of the antenna.
M
ou
ntin
Attach the assembled antenna to the mast using the
U-bolt, lockwashers and nut provided (Item 14, 15,
and 16). The antenna may also be attached to a flat
vertical surface.
NOTE: The radials must be above the top of any
m
ou
n
t
in
g
su
rf
ace.
New holes may be drilled in the base bracket (Item
1
)
if n
ecessa
r
y.
Figure 1

Figure 2
PARTS LIST
Item
No. Part No. Descriptions Qty
1 163945 Base Bracket...................................................................................................... l
2 173216 Radiator, 162-174 MHz ............................'.........................................................1
3 861677 Insulator Assembly ............................................................................................1
4 560075 Lockwasher, #10 external, stainless steel ...........................................................6
5 565697 Lockwasher, #10 internal, stainless steel ...........................................................5
6 561165 Flatwasher, #10, stainless steel ..........................................................................8
7 554071 Nut, #10-24 hex, stainless steel .........................................................................5
8 505751 Bolt, #10-24 x 3/4", round head, stainless steel.................................................. 4
9 504069 Bolt, #10-24 x 1", hex head, stainless steel ........................................................1
10 657590 Connector, UG58/U, N ................................................ .....................................1
11 173217 Radial, 1/4" x 15-3/4" .......................................................................................4
12 173215 Beta Wire .........................................................................................................1
13 455644 Caplug, 7/16", black .........................................................................................1
14 380866 U-bolt, 5/16"-18 x 1-5/8" x 2-1/4", stainless steel .............................................1
15 565748 Lockwasher, 5/16" internal, stainless steel ........................................................2
16 555747 Nut, 5/16", stainless steel ..................................................................................2

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 warrant
y
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 proof of-purchase 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.
Hy-Gain agrees to repair or replace at Hy-Gain’s option without charge to the
original owner any defective product under warranty, provided the product is
returned postage prepaid to Hy-Gain with a personal check, cashiers check, or
mone
y
order for $8.00 coverin
g
p
osta
g
e and handlin
g
.
3. Under no circumstances is Hy-Gain liable for consequential damages to
p
erson or
p
ro
p
ert
y
b
y
the use of an
y
H
y
-Gain
p
roducts.
4. Out-of-warranty Service: Hy-Gain 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
arran
g
ements are made.
5. This warranty is given in lieu of any other warranty expressed or implied.
6.
Hy-Gain 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 H
y
-Gain
p
roducts to be serviced in-warrant
y
or out-of-warrant
y
should be
addressed to hy-gain, 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.
LIMITED WARRANTY