HB9CV type Beam antenna
for 50
～
52MHz
●
SWR
!
1
370
!
90
゜
0
゜
180
゜
60
゜
30
゜
120
゜
150
゜
240
゜
210
゜
300
゜
330
゜
270
゜
8.0
10
6.0
4.0
3.0
2.0
1.0
15
20
20
10
2970
470
750
370
2720
!
1.8
1.5
1.4
1.3
1.2
1.1
1.0
50MHz
51MHz
52MHz
1
17
Instruction Manual
Thank you for purchasing our product.
For your safety :
Read this manual carefully for proper handling and operation before using.
Keep this manual in a safe place for future reference.
Check all parts are included,
according to the parts list.
Main Beam
Radiator
Reflector
Short-Bracket
Standard Position
Short-Bracket
Standard Position
Your Mast or Pole
【
Features
】
1. Compact and lightweight
2. HB9CV 2 Element Beam Antenna with high gain
3. Heavy-duty with stainless steel screws
Precautions for assembling
■
Wearing a safety hat and a life line during installing on a roof top or any high
places is highly recommended.
■
Do not erect this antenna near any electrical power lines and/or street lights.
【
Specifications
】
● Frequency : 50 – 52MHz
● Gain : 6.3 dBi
● F/B ratio : 24dB or more
● Half-power angle : approx 68°
● Input Power : 200W(FM)
● Impedance : 50Ω
● V.SWR : 1.8 or less at 50 – 52MHz
● Connector : SO-239 (M-J) type
● Turning Radius : approx 1.54m
● Mounting Mast Diameter : φ25 – 62mm
● Max Wind Survival : 30m/sec
● Wind Load : approx 0.054m
2
● Boom Length : approx 0.79m
● Length : approx 2.97m
● Weight : approx 910g (antenna body)
Directinal Pattern
E-Plane
Precautions for Installation
Choose a safe place to erect this antenna, complying with the laws and
regulations in your country.
Be sure to tighten and waterproof all screws, nuts and bolts.
Do not erect this antenna near any overhead wires, steel towers,
buildings
or any other obstacles.
●
●
【
Parts List
】
Parts Name
Qty.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
2
2
2
1
1
1
4
2
2
1
1
1
2
1
4
4
2
2
2
4
4
2
4
4
4
1
Boom with cap
Element(L)
Element(S)
Center Element
Regulating Rod(1)
Regulating Rod(2)
Phase Line
Short-bracket
Element-holder (A)
Element-holder (B)
Backing plate
Fixing bracket
U-Bolt
Pan-head
Screw
Wing Nut
Hex. Nut
Spring washer
Self-fusing tape
appearance and/or specification is subject to change.
φ 25 × 790 mm
φ 9.5 × 1215 mm
φ 9.5 × 1090 mm
φ 11 × 600 mm
with SO-239(M-J) Connector
Rod without Connector
with terminal
aluminum plate
stainless plate
M 6
M 5× 70
M 5× 25
M 4× 10
M 3× 15
for M 5
aluminum
aluminum
stainless plate
for M 6
for M 5
for M 4
for M 3
for M 6
for M 5
for M 4
for M 3
two preinstalled with
Regulating Rod
Element(S)
or Element (L)
Center
Element
Element Assembly figure
Element(S)
or Element (L)
【
How to Assemble
】
1.Assemble radiator and reflector with elements(L or S)
Radiator length : 2720mm / Reflector length : 2970mm
2.Assemble other parts, according to the below fig.
● Short-bracket on radiator and on reflector ; Assemble both in a same way.
Main Beam
Boom Assembly figure
Phase line
Note :
Make sure to connect the
black-colored terminals
on both ends of Phase-line
to Boom.
SO-239
50Ω Coaxial Cable
(Optinal Accesory)
※
Stretch the self-fusing tape
two times longer and wrap it to
the joint of connectors for
waterproofing.
【
How to adjust
】
1.Put your 50Ω coax cable into CA-52HB SO-239 Connector, and check SWR.
With a high SWR reading, you have to re-adjust this antenna
2.When adjusting center frequency, move a short-bracket on the radiator.
fo becomes lower when moving short-bracket inward. (see the right fig.)
If not SWR becomes lower, try to adjust a short-bracket on the reflector.
*Move the antenna to a different mounting location when SWR stays high.
3.Tighten each screw and bolt to lock the antenna into its newly
adjusted position.
Note : Use backing plate, brackets and/or U-bolts etc when
mounting this antenna to your mast etc.
fo:Lower
fo:Higher
Tune
Radiator
●Changes in the Frequency
Approx 50khz per centimeter
★
Center Frequency
adjustable range : 50.1 – 51.4MHz
【
Precautions for operating
】
● Check if the Cable Connector fits into the Antenna Connector.
● Keep children away from this antenna, especially while transmitting.
● Stop the use of this antenna immediately if you see the slightest trouble.
● DO NOT use this antenna out of spec.
● DO NOT use this antenna without element or with extra element.
● Never attempt to perform modification by yourself.
● While lightening, DO NOT touch this antenna.
Remove the radio, antenna and/or cable etc from devices.
Also check SWR after lightening.
Your Mast
or Pole
COMET CO.,LTD.
4-18-2, Tsuji, Minami-ku, Saitama City, Saitama-Pref 336-0026 JAPAN
TEL: +81-48-839-3131 FAX: +81-48-839-3136
URL http : //www.comet-ant.co.jp
4th edition.
Copyright (C) 2019 COMET CO.,LTD. All Rights Reserved.
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26
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9
4
2
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15
6
1
7
24
20
14
24
3
4
1
20
3
24
5
24
14
3
16
5
25
21
8
19
1
23
11
12
13
Black
Black
20cm
MODEL
CA-52HB
Center
Element
Center
Element
two preinstalled with
Regulating Rod
Preinstalled with
Regulating Rod(2)
