Hy-Gain V-2R User manual

308 Industrial Park Road, Starkville, M8 39759 USA
Ph: [phone] FAX: [phone]
INSTRUCTION MANUAL
GENERAL
The new Hy-Gain V-2R, two meter antenna is a
collinear 5/8-wave omnidirectional vertical
antenna for the 144-148 MHz Amateur band. The
V-2R features two sets of 1/4-wave radials which
properly decouple the lower 5/8-wave radiator
from the mast. It also features a 500 watt
enclosed coil that matches the antenna to a
nominal 50 ohms. The ruggedized V-2R is
suitable for personal use, repeater, and packet
BBS service.
The feedpoint is a standard UHF connector that is
protected from the weather within the lower
radiator. The V-2R also features a mast-to-mast
bracket that will accept up to a two inch O.D.
mast.
The V-2R can also be used outside of the two
meter Amateur band. Graphs are supplied so that
the antenna can be set to any frequency between
138 and 174 MHz.
ASSEMBLY
Unpack the antenna and check the parts against
the Parts List and drawin
g
s. Set both assembled clamps upside down on a flat
surface.
Select four of the radial clamps and associated
hardware and loosely assemble them as shown in
Fi
g
ure 1.
Select the eight (8) 7/16" x 17 1/8" radial tubes
(Item No. 4), and insert them completely into the
assembled radial clam
p
s.
Repeat the previous step for the remaining four
radial clam
p
s.
Tighten the outer eight (8) screws of each
assembly just enough to hold the radial tubes in
place. These screws will be securely tightened in
a later ste
p
.
V-2R
VHF Collinear Gain Vertical
For 144-148 MHz
SPECIFICATIONS
VSWR at Resonance Less than 1.5:1
2:1 VSWR Band Width 10 MHz minimum
Power Gain 3 dBd (5.2 dBi)
Antenna/Mast Isolation 20 dB
Power Input 500 Watts continuous
Lightning Protection DC ground
Height (nominal) 108 inches (2743 mm)
Wind Area 0.67 sq. ft. (.062 sq. m)
Maximum Mast O.D. 2 inches (51mm)
Hardware 18-8 stainless steel except for U-Bolts
Maximum Wind Survival (without ice) 105 mph (168.98 kmph)
Net Weight 6.3 lbs (2.86 kg)

Item
No. Descri
p
tion
2 Radial Clam
p,
45 de
g
rees
4 Tube 7/16" x 17 1/8"
6Tube
,
l" O.D. x 60"
,
slotted
13 Bolt
,
X10-24 x 1/2"
,
hex
15 Lockwasher, X10, internal
16 Nut
,
X10-24
,
hex
Figure 1 Radial Clamp
Assembly
Figure 2
Mast-to-Mast Clamp
Select the 1" x 60" tube
(
Item No. 6
)
.
Slip both radial assemblies over the bottom of
the 60" tube and position as shown in Figure 4
and Detail A. The unslotted end of the 60"
tube is the bottom. Determine the "B"
dimension from Figure 7. For example, at 146
MHz
,
B = 32 3/8"
(
822 mm
)
.
Tighten all screws in both radial assemblies
securely and evenly.
Select the mast-to-mast clamp, plate and as-
sociated hardware and loosely assemble them
as shown in Figure 2.
Slide the assembled mast-to-mast clamp over
the bottom end of the 60" tube as shown in
Figure 2 and securely tighten the four (4) 1/4"-
20 x 3/4" bolts, nuts and lockwashers (Item
Nos. 18, 20 & 21
)
.
NOTE: The end of the
1" x 60" tube (Item 6)
should be even with
the bottom of the mast-
to mast brackets (Item
1 and 3
)
.
Item
No. Description
1 Mast-to-Mast Bracket Plate
,
1 1/8"
3 Mast-to-Mast Bracket Clam
p,
1
6Tube
,
1" O.D. x 60"
,
slotted
18 Bolt, 1/4"-20 x 3/4", hex head
20 Lockwasher
,
1/4"
,
internal
21 Nut
,
1/4"-20
,
hex
23 U-bolt
,
5/16" x 2" x 211/16"
24 Lockwasher
,
5/16"
,
s
p
lit
25 Nut, 5/16"-18, hex

UPPER RADIATOR/COIL ASSEMBLY
Refer to Figure 3.
Select the V-2R VHF Coil assembly. The
coaxial cable will attach to this in a later ste
p
.
NOTE: Dimension "A" is from the top of the
coil form to the tip of the element. Dimension
"B" is from the bottom of the plastic coil form to
the top of the radial clamps.
Select one No. 10 compression clamp (Item 11)
and install over the slotted tube end of the coil
assembl
y
(
Item 8
)
.
Select the 7/8" O.D. x 24" tube (Item 7) and
insert the plain end into the slotted tube of the
coil assembly approximately 2". Position the
compression clamp as shown in Figure 5 and
ti
g
hten securel
y
.
Select one No. 6 compression clamp (Item 10)
and place over the swaged/slotted end of the
7/8" tube
(
Item 7
)
.
Select the 5/8" x 31" (Item 5) tube and insert
either end into the 7
/
8" tube
(
Item 7
)
.
Refer to Figure 4. Adjust the 5/8" x 31" tube so
dimension "A" is equal to 41 1/2" for two meter
operation. Tighten the No. 6 compression clamp
(
Item 6
)
securel
y
.
NOTE: The tuning charts in this manual are ac-
curate. However, due to variation in
installations some minor adjustments may be
re
q
uired to resonate the antenna on the desired
Select the 5/8" caplug (Item No. 12) and slip it
over the end of the 5/8
"
tube.
Figure 3
U
pp
er Radiator/Coil Assembl
y
Item
No. Description
6Tube
,
1" O.D. x 60"
,
slotted
7Tube
,
7/8" x 24" swa
g
ed & slotted
8Coil
,
500 watt
,
VHF
10 Clam
p,
#6
,
Tubin
g
11 Clamp, #10, Tubing

NOTE: At 146 MHz
,
A = 41 1/2"
(
1054 mm
),
= 32 3/8"
(
822 mm
)
.
RADIALS AS SEEN FROM
EITHER THE TOP OR THE
BOTTOM.
Detail A
To
p
or Bottom View of Radials
Figure 4
Overall View
Item # Description
5 Tube, 5/8” x 81”
6 Tube, 1” O.D. x 60”, slotted
7 Tube, 7/8” x 24” swaged, drilled & slotted
8 Coil, 500 Watt, VHF
10 Clamp, #6, Tubing
11 Clamp, #10, Tubing
12 Caplug, 5/8” black

Select the proper size tube clamp as shown in
Figure 5. When installing the clamps, place
the clamp near the tube end with the top of the
clamp over the slot in the tube as shown.
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.
Part Description Fits
No. Tubing
Sizes
358756 Clamp, Size #6 1/2"
all stainless steel and 3/4"
5/16" hex head screw
Part Description Fits
No. Tubing
Sizes
358757 Clamp, Size #10
'all stainless steel t"
5/16" hex head screw
Figure 5 Compression
Clam
p
s

The remaining length of coax can then be at-
tached and routed to the radio. The short
length of coax must be at least 6 feet long, so
the connection between coax lengths can be
made below the mast-to-mast bracket.
The second method involves attaching the
complete length of coax to the antenna before
attaching the antenna to the supporting mast.
In this method, the antenna and entire coax
length must be carried up the tower or mast.
Figure 6
Dimension "A" Chart Choose one of the suggested methods of
attachin
g
the coax to the V-2R.
Figure 7
Dimension "B" Chart
Insert one end of the coax into the bottom of
the 1" x 60" tube. Push the coax through until
the connector emerges from the top of the
b
Screw the coax connector onto the V-2R coil
connector.
Push the coax cable into the top of the 1" x
60" tube until the matching coil rests on the
one inch tube. Tighten the one inch
com
p
ression clam
p
.
The antenna can now be mounted on a mast
(2" O.D. max.). For adequate lightning
protection, the antenna supporting structure
must be well
g
rounded.
WARNING
Installation of this product near power
lines is dangerous.For your safety, follow
the installation directions.
Select the No. 10 tube clamp and slip it over
the top end of the 1" x 60" tube. Position it as
shown in Figure 3 and tighten it just enough
to
p
revent it from slidin
g
down the tube.
Several antennas may be mounted on the same
mast. Your V-2R should be mounted above
the other antenna for best performance. When
side mounting the V-2R on a tower, it should
be ke
p
t at least 20 inches awa
y
from the tower.
INSTALLATION
There are two ways to attach your coax to the
V2R antenna. The first method involves
attaching a short length of coax to the antenna
before attaching the antenna to the supporting
mast.

ANNOUNCING
Hy-Gain now makes a similar antenna for 400470
MHz called the V-4R. Inquire at your local Hy-
Gain dealer for more information. .
NOTE: Some extra small
p
arts are included but not used.
PARTS LIST
Item
No. Part No. Description Qty
1 160011 Mast-to-Mast bracket plate, 1 1/8" ....................................................1
2 160012 Radial clamp, 45 degrees ..................................................................8
3 160047 Mast-to-mast bracket clamp, 1 1/8" ..................................................1
4 170445 Tube, 7/16" O.D. x 17 1/8" ...............................................................8
5 170614 Tube, 5/8" O.D. x 31" .....................................................................1
6 191001 Tube, 1" O.D. x 60", slotted ..............................................................1
7 190204 Tube, 7/8" x 24", swaged & slotted ..................................................1
8 878630 Coil, 500 watt, VHF ..........................................................................1
878631 Parts Pack, 335S-1, Stainless Steel ...................................................1
9 (Not Used)
10 358756 Clam
p,
#6 tube ...............................................................................1
11 358757 Clamp, #10 tube .............................................................................2
12 450503 Caplug, 5/8", black .........................................................................1
13 500158 Bolt, #10-24 x 1/2", hex head ....................... ........ ................... 33
14 (Not Used)
15 565697 Lockwasher, #10, internal ............................................................33
16 554071 Nut, #10-24, hex ..........................................................................33
18 505266 Bolt, 1/4"-20 x 3/4", hex head ........................................................4
20 562961 Lockwasher, 1/4", internal .............................................................5
21 554099 Nut, 1/4"-20, hex ............................................................................4
23 540036 U-bolt, 5/16" x 2" x 2 11/16" ........................................................ 2
24 564792 Lockwasher, 5/16", split .................................................................4
25 555747 Nut, 5/16"-18, hex ..........................................................................4

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