Hy-Gain GPG-1B User manual

308 Industrial Park Road, Starkville, MS 39759 USA
Ph:
(
662
)
323-9538 FAX:
(
662
)
323-6551
GPG-1B
1/4 Wave Ground Plane
Antenna 144-148 MHz
Instruction Manual
General Descri
p
tion
This antenna is a 1/4-wave ground plane that
operates in the 144-148 Mhz range. The antenna
terminates with a SO-239 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
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 lockwasher (Item 4) as shown in
Figure 1. Tighten hardware securely.
NOTE: Its is important to install the hardware
exactly as shown. This will prevent movement of
the radials.
Insiall 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 SO-239 connector on the botf,:
of the antenna.
Mounting
Attach the assembled antenna to the mast using the
U-bolt, lockwashers and nut provided (Item 14, 1 _ ,
and 16). The antenna may also be attached to a flat
vertical surface.
NOTE: The radials must be above the top of any
mountin
g
surface.
New holes may be drilled in the base bracket (Item
1) if necessary.
After these two radials are fastened securely as
shown, remove the tu,o # 10 hex nuts from the #1_
0 bolts (factory installed). Attach a#10 external
lockwasher (Item 4), a radial (Item 11), flatwasher
(Item 6), internal lock-washer (Item 7). Refer to
Detail A. The four radials should be spaced 90
degrees apart.

Figure 1
PARTS LIST
Item Part No. Descri
p
tions
Q
TY
No.
1 63945 Base Bracket 1
2 173218 Radiator, 18-9/16" 1
3 861677 Insulator Assembly 1
4 not use
5 565697 Lock-washer, #10 internal, stainless steel 13
6 561165 Flatwasher, #10, stainless steel 8
7 554071 Nut, 10-24 hex, stainless steel 5
8 505751 Bolt, #10-24 x 3/4, stainless steel 5
9 not use
10 610-2005T Connector, SO-239 1
11 173217 Radial, 1/4" x 15-3/4 4
12 not use
13 455644 Caplug, 7/16", black 1
14 380866 U-bolt, 5/16-18 x 1-5/8 x 2-1/4 1
15 565748 Lockwasher, 5/16" internal 2
16 555747 Nut, 5/16-18 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