Diamond Antenna CP8040 Operation Instructions Manual

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Tension ring

M45018

Hat S M45009

S trap M45006

Hat M45008

Hat SS M45010

Hat ring M45011

Screw with radial element fastener ring

Nut with radial element fastener ring

Screw with radial element holder

Radial coil for 3.5MHz

M45015

Pipe No. 1 φ7.4 M45001

Pipe No. 2

φ10

M45002

Pipe No. 3 φ30 M45003

Pipe No. 4 φ30 M45004

Pipe No. 5 φ30 M45005

Tapping screw M4x8 M45021

Inner tooth washer M4 M45022

Loading Coil for 7MHz M45007

Mast bracket M45019

Radial nut

M45025

Radial coil for 7MHz

M45016

Support pipe

M45014

Radial ring

M45013

Radial element

M45017

Feeding point assembly

M45012

Hex head screw M6x8

M45023

Hex head screw M6x8

M45023

Spring washer M6

M45024

Spring washer M6

M45024

V-volt set

M45020

80m and 40m Dual-band Vertical Antenna

CP8040

・Parts Description

Operation Instructions

（Fig１）

・Description

①The CP8040 is a dual-band

verticalantenna for HF low band.

②Compact, light weighted and very

easy to assemble.

③It is completely self-supported and

does not need any guy wires.

④Trap radials could be concentrated on one direction instead of

spreading them around the antenna. This is especially convenient if the antenna is installed on balcony railing or window side of condominiums and urbanapartments.

⑤Since the antenna is direct DC

ground at the feed point, coaxial cable and

 transceiver are being

protected from the high voltage caused by lighting.

⑥Center frequencies of the antenna

are adjustable in each band simply by

 change radial length

and capacity hat (80m only).

⑦Top loading structure utilizing

capacitive hat enables the antenna to complete with full quarter wave length antennas in its performance.

⑧It is rigid and rugged enough to

withstand the wind pressure over 35m/sec.

⑨Mast brackets area adjustable to

accept 1 1/5” to 2 1/3” diameter mast.

⑩Since feeding point is covered by

the support pipe, it is excellent in the waterproof property.

⑪CP8040 can be used 3.5-3.8MHz / 7-7.2MHz.

・Parts Description

Parts # Description Qty

M45001 Pipe No. 1 φ7.4 1 M45002 Pipe No. 2 φ10 1 M45003 Pipe No. 3 φ30 1 M45004 Pipe No. 4 φ30 1 M45005 Pipe No. 5φ30 1 M45006 S trap 1 M45007 Loading coil for 7MHz 1 M45008 Hat

M45009 Hat S 4 M45010 Hat SS

M45011 Hat ring

M45012 Feeding point assembly 1 M45013 Radial ring  1 M45014 Support pipe 1 M45015 Radial coil for 3.5MHz 1 M45016 Radial coil for 7MHz 1 M45017 Radial element

M45018 Tension ring

M45019 Mast bracket

M45020 V-volt set 2 M45021 Tapping screw M4x8 12 M45022 Inner tooth washer M4 12 M45023 Hex head screw M6x8 3 M45024 Spring washer M6 3 M45025 Radial nut 2

Grip nut

Radial element trap coil

Radial element fastener ring

Adjust length of radial element

7MHz

3.5MHz

（Fig−3）

（Fig−4）

3.5MHz

7MHz

（Fig−２）

（Fig−5）

・180 degrees radial

・90 degrees radial

(one directional style)

-Note----------------------------------

<<Installing the antenna>>

①Don’t install on a rainy or windy

day since it is dangerous.

②Don’t attempt to install the

antenna only by yourself. Installing the antenna alone on the roof may lead you dangerous accident. Always ask your friends for help installing the antenna.

③Don’t drop the antenna, tools and

attachment when installing the antenna in the height. Install the antenna before assembling it on the ground.

<<Antenna location>>

①If the CP8040 is located on the

roof of a house or top of a building, look around the roof to see if there are any obstacles such as an electronic wire or TV antenna. The CP8040 has to be located as far away as possible from those things to obtain its maximum performance. Installing the antenna too close to the building wall may cause bad effect for electrical characteristics of the antenna.

②Don’t install the antenna where is

easily reachable by people.

③Install the antenna firmly not to fall

down due to the strong wind. Even if falling down the antenna, locate the antenna at the safe place where people and building are not inflicted injures.

<<Before transmitting>>

①Transmit after confirming if the

antenna works normally by an SWR meter. If VSWR is less than

1.5, it is no problem. If VSWR is higher, stop transmitting and check if the parts of the antenna and coaxial cable are connected. If there are tall buildings or obstacles or the distance between the antenna and the ground is short, VSWR may not be lowered.

※Diamond Antenna SWR/POWER

meter is an insertion type being connected between a transmitter and an antenna. Transmitting power and SWR can be measured with very simple operations. In addition with those conventional measurements, PEP (peak envelope power) on SSB mode can be measured with a PEP monitor function. With our Diamondís wideband and low insertion loss directional coupler those measurements can be performed withminimum effect in transmission line.

<<During transmitting>>

①Touching the antenna during

transmission may cause to electrify. Pay attention not to touch the antenna especially for children if installing on a balcony railing.

<<Rumbling Thunder>>

①The thunder seems to rumble in

the vicinity, don’t touch the antenna and coaxial.When you don’t use the radio, take off the cable from the radio.

<<If there is something wrong, stop transmitting immediately>>

①Keeping transmitting with high

VSWR may cause the radio to be damaged.

Stop transmitting immediately and

check the following matters. If it doesn’t solve the problem, please ask the dealer or Diamond Antenna Corporation.

[Condition: If the antenna doesn’t seem to receive well or propagate well]

Check 1: Is the antenna too close to

the building wall? If the obstaclesare too close to antenna, VSWR is higher and the radiation pattern is disturbed. Please install the antenna from the building as far away aspossible.

Check 2: Did you assemble the

antenna correctly? Please read theinstruction again and reconfirm the assembly.

Check 3: Is the coaxial cable

something wrong? Please check if soldering the connector is okay and the wire breaks by the volt-ohm meter.

・Antenna location

Resonate frequency of HF antenna can change based on location. Antenna should be mounted away from tree, building and other antennas.

①If the CP8040 is located on the

roof of a house or top of a building, look around the roof to see if there are any obstacles such as TV antenna or water reservation tank. The CP8040 has to be located as far away as possible from those things to obtain its maximum performance.

②If the CP8040 is installed on a

balcony railing, installing the antenna too close to the building wall may cause bad effect for electrical characteristics of the antenna. Locate at least 2m to 5m (7ʼ to 16’) away from the building wall depending on structure of the building.

<<Note>>

・Fastening the radial element trap

coil assembly tightly may be damaged.

・Install radial as much as far from

building.

・In case of using the metallic stay

wire,

set the wire on the lower

mast bracket

set and attach the

insulators at within

1m from the

mast bracket set in order to insulate.

・It is possible to remove the radials

you

don’t use the band for.

・Assembly Instruction

①Put radial element in each radial

element trap coil assembly by referring to the typical element length listed in Table A/B and fasten it with element fastener ring. (Figure-5)

②Set grip nut rightly to treaded part

of each radial element trap coil assembly.

③Connect vertical element parts

(Pipe No. 1, No. 2, S trap, Loading coil for MHz, Pipe No. 3, No.4, No.

5) and fasten them with tapping screws and inner tooth washers by aligning holes in each joint section.

④Attach two Hat and two Hat S

alternately on Hat ring.

+ 1 hidden pages

Diamond Antenna CP8040 Operation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual