No part of this handbook may be reproduced, transcribed,
translated into any language or transmitted in any form
whatsoever without the prior written consent of Codan
Limited.
The 3040 Automatic Whip Antenna is designed to provide
continuous tuning for vehicle-mounted transceivers that scan
multiple frequencies. It is designed to withstand extreme
environmental and physical conditions. When tuning, the
antenna seeks the optimum tuning point, ensuring that the best
communications possible are achieved.
The 3040 Automatic Whip Antenna comprises:
•a 1.6 m (62 in) fibreglass or stainless steel whip
•an 865 mm (34.0 in) riser
•a spring
•an antenna tuner with connectors, base plate and earth
wire
qualified technician, to the relevant standards
and approvals.
While the following instructions are intended to
assist with installation, it is the purchaser’s
responsibility to ensure that the antenna is
installed with due regard to pedestrian and
vehicle-occupant safety, particularly in the
event of a vehicle accident. Codan accepts no
responsibility or liability in the event of injury
to pedestrians or vehicle occupants or any other
damage due to insecure or otherwise unsafe or
inappropriate installation of the antenna.
What you need to consider
The antenna is a critical element in an HF communications
system. Correct installation of the antenna provides efficient
operation over the frequency range of the transceiver. A good
installation ensures the antenna provides optimum output
power during transmission and clear reception of weak
signals.
When installing the antenna you must consider:
•the location and mounting of the antenna
•how to provide a good earth plane for the antenna
mounted on the side opposite to the driving
position.
Mounting bracket
The antenna must be mounted on a sturdy metal plate (at least
8 mm (0.3 in) thick). The mounting bracket and fixing should
be able to withstand any vibrations induced from the vehicle
travelling over an off-road surface. A strong metal plate that is
large enough to support the antenna will also provide efficient
earthing. The plate must have a 15 mm (0.6 in) hole to accept
the mounting screw.
NOTE
You should consider any overall height
restrictions that are relevant to your vehicle.
The bracket should be located so that any flexing of the
antenna assembly does not damage the panels of the vehicle.
The installed antenna should enable easy access to the
connectors.
Most mobile antennas are considerably shorter than a quarter
wavelength at HF, and can exhibit an extremely low radiation
resistance. Consequently, their efficiency is reduced compared
with the quarter-wave radiator that they represent. This can be
improved by good installation practices, and most importantly,
by the provision of a low-impedance earth return for the
antenna.
Due to the relatively poor earth plane surrounding a mobile
HF antenna, best use should be made of what is available. A
reduction in any losses can increase antenna current and
radiation. This can often be achieved by providing a good
earth connection from the base of the antenna to nearby
bodywork. An earth wire is provided for this. Connections to
the vehicle chassis are not as effective because many 4WD
vehicles have insulating mountings from body to chassis.
A strong metal plate that is large enough to support the
antenna will provide efficient earthing. The plate should be
welded to the chassis or some other part of the vehicle’s frame.
The mounting bracket and plate must be free of rust and paint
to allow metal-to-metal contact between the base of the
antenna and the mounting bracket. This electrical bond is the
basis for effective RF earthing. RF currents flow on the
conductor surface, therefore good RF earthing requires
conductors with large surface areas.
NOTE
Conductive grease should be used on the
touching surfaces to help prevent corrosion.
The RF earth differs from the DC earth required by the battery
and the vehicle’s electrics. For more information on power
supply factors and earthing the transceiver, see the
documentation provided with the transceiver.
The coaxial cable between the antenna and the transceiver
should be installed as far as possible from other vehicle
wiring, especially high-tension ignition wiring or the engine
management computer.
The cabling must be in a position that:
•is away from the driver’s feet
•is secured and concealed as much as possible
•is secured behind protective metalwork (only if the
cables run under the vehicle)
Keep cables in the engine compartment away from:
•heat, for example, exhaust, air-conditioning systems, and
water pipes
•oils and corrosive liquids, for example, engine oil,
battery fluid, and brake fluid
Protect all the cables from sharp edges and mechanical
abrasions. Cables that pass through body panels or internal
bulkheads must be protected by rubber grommets. Holes in the
bulkhead need only be large enough to allow the end of the
cable with the smaller connector to pass through. Removing a
connector should be a last resort.
CAUTION
Removal of factory-fitted connectors may cause
cable or connector faults.
Crimp-style coaxial connectors are not suitable
CAUTION
for vehicle installations because they are not
weatherproof.
Installing an NVIS kit with a 3040 Automatic
Whip Antenna
An NVIS kit (Codan part number 78-14010) is available for
attaching to a 3040 antenna. For information on installing this
kit with the antenna see the instructions provided with the kit.
The NVIS kit is designed to improve the performance of short
to medium-range HF communications for the 3040 antenna by
increasing the high-angle radiation characteristics. Typically,
these communication distances are 20 to 500 km (12 to
310 mi). The operating frequency range when using the NVIS
kit is 2 to 12 MHz.
The vertical radiation pattern from a short vertical whip
antenna is very poor. As such, HF communications over short
distances may be difficult or non-existent from such an
antenna. The NVIS kit lengthens the whip section of the 3040
antenna. The NVIS whip is longer and positioned horizontally
to improve the vertical radiation efficiency.
When the NVIS kit is added or removed,
Codan recommends that you manually tune
the antenna (press 1) on each frequency
you want to use. This sets the optimum
tuning point in the memory of the tuner.
This section describes how to ensure the 3040 Automatic
Whip Antenna complies with the European EMC Directive
89/336/EEC and the European LV Directive 73/23/EEC as
called up in the European R&TTE Directive 1999/5/EC.
This section also contains the requirements for FCC
compliance.
European R&TTE Directive
The 3040 Automatic Whip Antenna has been tested and
complies with the following standards and requirements
(articles of the R&TTE Directive):
•Article 3.1b: ETSI EN301489-1 V1.4.1
•Article 3.1b: ETSI EN301489-15 V1.2.1
•Article 3.1a: EN60950-1
Product marking and labelling
Any equipment supplied by Codan that satisfies these
requirements is identified by the , or
markings on the model label of the product.
Declaration of Conformity
The CE Declaration of Conformity for the product is listed on
page 40, Associated documents. This document can be made
available upon request to Codan or a Codan-authorised
supplier.
To ensure optimal transceiver performance and to avoid
exposure to excessive electromagnetic fields, the antenna
system must be installed according to the instructions
provided.
High voltages exist on the antenna during
WARNING
WARNING
WARNING
transmission and tuning. Do not touch the
antenna during these activities. RF burns may
result.
Install the earthing system or counterpoise as
directed to prevent RF burns from any metal
part of the transceiver.
You should not transmit from your transceiver
or tune the antenna unless people are beyond the
safe working distance of 1.5 m (5 ft) of any part
of a 3040 Automatic Whip Antenna.
Compliance
Safe working distance is based on continuous exposure to
CW-type transmissions, as set out in the ICNIRP Exposure
Guidelines (1998) for occupational exposure. Safe working
distance can be reduced with normal voice communication.
EMC
To ensure compliance with the EMC Directive is maintained,
you must:
1Use the standard shielded cables supplied from Codan
To ensure compliance with the European LV Directive is
maintained, you must install the 3040 Automatic Whip
Antenna in accordance with the instructions in this handbook,
and operate the 3040 Automatic Whip Antenna in accordance
with the instructions in the relevant documentation provided
with your transceiver.
Any modifications made to the 3040 Automatic Whip
Antenna that are not approved by the party responsible for
compliance may void your equipment’s compliance under
Part 15 of the FCC rules.
The 3040 Automatic Whip Antenna has been tested and found
to comply with the limits for a Class B device, pursuant to
Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by
switching the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following
measures:
Compliance
•reorient or relocate the receiving antenna
•increase the separation between the equipment and
receiver
•connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
•consult the dealer or an experienced radio/TV technician
Indicates that this toxic or hazardous substance, contained in all of the
homogeneous materials for this part, is below the limit requirement in SJ/
T 11363-2006.
表示该有毒有害物质在该部件的至少一种均质材料中的含量 , 超出
X
SJ/T 11363-2006 标准所规定的限量要求 .
Indicates that this toxic or hazardous substance, contained in at least one of
the homogeneous materials used for this part, is above the limit requirement
in SJ/T 11363-2006.
怎么阅读制造日期 - 方法如下 :
How to read the date of manufacture: