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V3R

MODEL V3R

Collinear Gain Vertical for 216-225 MHz

INSTRUCTION MANUAL

General Description

The new Hy-Gain V3R VHF antenna is a
collinear 5/8-wave omnidirectional vertical
antenna for the 216-225 MHz frequency range.
The V3R 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 feedpoint is a female UHF connector that is
protected from the weather within the lower
radiator. The V3R also features a mast-to-mast
bracket that will accept up to a 2 inch O.D. mast.

Settings are supplied so that the antenna can be
set to any frequency between 215 and 230 MHz.

Assembly

Unpack the antenna and check the parts against

Select the eight (8) 7/16" x 12" radial tubes (Item
No. 2), and insert them completely into the
assembled radial clamps.

Select four of the radial clamps and associated
hardware and loosely assemble them as shown in
Figure 1.

Repeat the previous step for the remaining four

radial clamps.

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 step.

Set both assembled clamps upside down on a flat

surface.

Summary of Contents for V3R

Page 1: ...tor The V3R also features a mast to mast bracket that will accept up to a 2 inch O D mast Settings are supplied so that the antenna can be set to any frequency between 215 and 230 MHz Assembly Unpack the antenna and check the parts against Select the eight 8 7 16 x 12 radial tubes Item No 2 and insert them completely into the assembled radial clamps Select four of the radial clamps and associated ...

Page 2: ...ely and evenly Select the mast to mast clamps and associated hardware and loosely assemble them as shown in Figure 2 Install the 1 4 hardware first Slide the assembled mast to mast clamp over the bottom end of the 48 tube as shown in Figure 2 and securely tighten the four 4 1 4 20 x 3 4 bolts nuts and lockwashers Item Nos 8 11 and 13 Figure 1 Radial Clamp Assembly Figure 2 Mast to Mast Clamp NOTE ...

Page 3: ...Item 4 Refer to Figure 4 Adjust the 5 8 x 15 tube so dimension A is set for the frequency of operation For example at 221 MHz A 27 1 4 692 mm See Table 1 Tighten the No 6 compression clamp Item 15 securely NOTE The tuning charts in this manual are accurate However due to variation in installations some minor adjustments may be required to resonate the antenna on the desired frequency Select the 5 ...

Page 4: ...FREQUENCY A B 215 28 1 2 17 3 4 221 271 4 161 2 223 26 3 4 16 225 230 261 4 25 1 2 151 2 14 3 4 Table 1 Figure 4 Overall View ...

Page 5: ...justment 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 Fits Part Description Tubing No Sizes Clamp Size 6 358756 all stainless steel 1 2 and 3 4 5 16 hex head screw Part No 358757 Description Clamp Size 10 all stainless steel 5 16 hex head screw Fits Tubing Sizes Figure 5 Compression Clamps 1 ...

Page 6: ...st 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 Choose one of the suggested methods of attaching the coax to the V3R Ins...

Page 7: ...4 13 562961 Lockwasher 1 4 internal 5 14 564792 Lockwasher 5 16 split 4 15 358756 Clamp size 6 tube 1 16 358757 Clamp size 10 tube 2 17 450503 Caplug 5 8 black 1 18 500158 Bolt 10 24 x 1 2 hex head 33 19 554071 Nut 10 24 hex 33 20 565697 Lockwasher 10 internal 33 21 160011 Mast to Mast Plate 1 22 160047 Mast to Mast Clamp 1 NOTE Some extra small parts are included for spares Converting American Me...

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