Element(S)or Element (L)MODELCA-52HBCenter
Element

262217For your safety :Read this manual carefully for proper handling and operation before using.
Keep this manual in a safe place for future reference.

4CenterS
Stanhort-Bra Element
dard cket
Posi
470 tion
2970【Features】

22720

16

【Parts List】
Qty.

Parts Name

1.852MHz0゜

Directinal Pattern
E-Plane

1.0
2.0
3.0
4.030゜60゜152090゜2010210゜180゜120゜150゜! Precautions for Installation● Choose a safe place to erect this antenna, complying with the laws andregulations 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.

50Ω Coaxial Cable(Optinal Accesory)

14

7 Phase line

※ Stretch the self-fusing tape

Note :
Make sure to connect theblack-colored terminals
Black on both ends of Phase-line
to Boom.
24

two times longer and wrap it tothe joint of connectors forwaterproofing.

3514■ Do not erect this antenna near any electrical power lines and/or street lights.

240゜SO-239

15

places is highly recommended.

6.08.010Black 24

Your Mast or Pole

■ Wearing a safety hat and a life line during installing on a roof top or any high330゜24102451MHz

20

Boom Assembly figure

5! Precautions for assembling● Frequency : 50 – 52MHzSWR● Gain : 6.3 dBi
1.5
1.4● F/B ratio : 24dB or more
1.3
● Half-power angle : approx 68°
1.2● Input Power : 200W(FM)1.1
1.0● Impedance : 50Ω
50MHz● 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
300゜● Wind Load : approx 0.054m2● Boom Length : approx 0.79m● Length : approx 2.97m● Weight : approx 910g (antenna body) 270゜

1420【Specifications】

3

Element(S)or Element (L)

9370
Shor
Stan t-Brackdard
Positetion

CenterElement

1. Compact and lightweight
2. HB9CV 2 Element Beam Antenna with high gain
3. Heavy-duty with stainless steel screws

Main Beam

418Main Beam

RadiatorReflector

Element Assembly figure

32622

Check all parts are included,according to the parts list.
075

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.

17HB9CV type Beam antenna
for 50～52MHz
Instruction Manual

Thank you for purchasing our product.

【How to Assemble】

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φ 25 × 790 mm
φ 9.5 × 1215 mm
φ 9.5 × 1090 mm

122
φ 11 × 600 mm
2with SO-239(M-J) Connector 1
1
Rod without Connector
with terminal
1aluminum plate
4aluminum
2aluminum2
stainless plate
1stainless plate
1M61
M 5× 702
withPan-head
M 5× 25 Preinstalled
1Regulating Rod(2)Screw
M 4× 104
M 3× 16
4for M 5
2
Wing Nutfor M 62
four preinstalled withfor M 5 Regulating
4
Rodfor M 4
Hex. Nut
4for M 3
4for M 62
two preinstalled withfor M 5 Regulating
4RodSpring washer
for M 44for M 3
420cm
Self-fusing tape1
appearance and/or specification is subject to change.

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【How to adjust】

25

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

21

16
8

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.

37
03.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.

Radiator
fo:Lower●Changes in the Frequency
Approx 50khz per centimeter Tune
★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.

19

fo:Higher1
23
12

11

13
Your Mastor Pole

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COMET CO.,LTD. URL
https : //www.comet-ant.co.jp

6th edition.2022.5.27
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