Marine Radio Antennas

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Motorboat Antennas

Product image of SHAKESPEARE DORSAL VHF Antenna / white
SHAKESPEARE DORSAL VHF Antenna / white
only €79 79 €90.46
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DORSAL VHF Antenna / whitePreview image
DORSAL VHF Antenna / whitePreview image
DORSAL VHF Antenna / whitePreview image
DORSAL VHF Antenna / whitePreview image
-12%
Product image of SHAKESPEARE DORSAL VHF Antenna / black
SHAKESPEARE DORSAL VHF Antenna / black
only €79 79 €90.46
No rating yet
Only 5 in stock
DORSAL VHF Antenna / blackPreview image
DORSAL VHF Antenna / blackPreview image
DORSAL VHF Antenna / blackPreview image
DORSAL VHF Antenna / blackPreview image
DORSAL VHF Antenna / blackPreview image
-12%
Product image of GLOMEX Marine VHF Antenna, 1.5 m
GLOMEX Marine VHF Antenna, 1.5 m
only €71 39 €99.00
(20)
51 in stock
Marine VHF Antenna, 1.5 mPreview image
Marine VHF Antenna, 1.5 mPreview image
-28%
Product image of GLOMEX RA300 VHF Marine Antenna / FME / 1.2 m
GLOMEX RA300 VHF Marine Antenna / FME / 1.2 m
only €47 86 €57.50
(14)
60 in stock
RA300 VHF Marine Antenna / FME / 1.2 mPreview image
RA300 VHF Marine Antenna / FME / 1.2 mPreview image
RA300 VHF Marine Antenna / FME / 1.2 mPreview image
-17%
Product image of GLOMEX VHF Marine Radio Antenna RA1206, 2.4 m
GLOMEX VHF Marine Radio Antenna RA1206, 2.4 m
only €91 55 €110.00
(13)
37 in stock
VHF Marine Radio Antenna RA1206, 2.4 mPreview image
VHF Marine Radio Antenna RA1206, 2.4 mPreview image
VHF Marine Radio Antenna RA1206, 2.4 mPreview image
VHF Marine Radio Antenna RA1206, 2.4 mPreview image
-17%
Product image of GLOMEX VHF Marine Radio Antenna PRA110, 1 m
GLOMEX VHF Marine Radio Antenna PRA110, 1 m
only €168 03 €180.00
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Only 3 in stock
VHF Marine Radio Antenna PRA110, 1 mPreview image
VHF Marine Radio Antenna PRA110, 1 mPreview image
-7%
Product image of GLOMEX VHF Marine Antenna RA104 / incl. soft foot
GLOMEX VHF Marine Antenna RA104 / incl. soft foot
only €112 56 €135.00
(2)
18 in stock
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
VHF Marine Antenna RA104 / incl. soft footPreview image
-17%

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Product image of GLOMEX VHF Marine Antenna RA400CR / BK / 1.5 m / with 4-way tilting base
GLOMEX VHF Marine Antenna RA400CR / BK / 1.5 m / with 4-way tilting base
only €75 59
(1)
28 in stock
VHF Marine Antenna RA400CR / BK / 1.5 m / with 4-way tilting basePreview image
VHF Marine Antenna RA400CR / BK / 1.5 m / with 4-way tilting basePreview image
VHF Marine Antenna RA400CR / BK / 1.5 m / with 4-way tilting basePreview image
Product image of GLOMEX VHF Marine Antenna RA400CR / BK / 1.5 m
GLOMEX VHF Marine Antenna RA400CR / BK / 1.5 m
only €58 78 €70.50
(2)
42 in stock
VHF Marine Antenna RA400CR / BK / 1.5 mPreview image
VHF Marine Antenna RA400CR / BK / 1.5 mPreview image
VHF Marine Antenna RA400CR / BK / 1.5 mPreview image
VHF Marine Antenna RA400CR / BK / 1.5 mPreview image
VHF Marine Antenna RA400CR / BK / 1.5 mPreview image
-17%
Product image of  MADEIRA FM VHF Marine Antenna, black, GRP, 6 dB, 2.3 m
MADEIRA FM VHF Marine Antenna, black, GRP, 6 dB, 2.3 m
only €61 30 €69.00
(1)
10 in stock
MADEIRA FM VHF Marine Antenna, black, GRP, 6 dB, 2.3 mPreview image
MADEIRA FM VHF Marine Antenna, black, GRP, 6 dB, 2.3 mPreview image
MADEIRA FM VHF Marine Antenna, black, GRP, 6 dB, 2.3 mPreview image
-11%
Product image of  IBIZA FM VHF Marine Antenna, black, GRP, 3 dB, 1.4 m
IBIZA FM VHF Marine Antenna, black, GRP, 3 dB, 1.4 m
only €46 18 €52.50
No rating yet
11 in stock
IBIZA FM VHF Marine Antenna, black, GRP, 3 dB, 1.4 mPreview image
IBIZA FM VHF Marine Antenna, black, GRP, 3 dB, 1.4 mPreview image
IBIZA FM VHF Marine Antenna, black, GRP, 3 dB, 1.4 mPreview image
-12%
Product image of  TARGET VHF Marine Antenna, black, 53 cm, tilt-base
TARGET VHF Marine Antenna, black, 53 cm, tilt-base
only €41 13 €46.00
(4)
35 in stock
TARGET VHF Marine Antenna, black, 53 cm, tilt-basePreview image
TARGET VHF Marine Antenna, black, 53 cm, tilt-basePreview image
-11%
Product image of GLOMEX VHF Marine Radio Antenna 1.5m (RA 112)
GLOMEX VHF Marine Radio Antenna 1.5m (RA 112)
only €62 98 €75.50
No rating yet
51 in stock
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
VHF Marine Radio Antenna 1.5m (RA 112)Preview image
-17%
Product image of GLOMEX MAKO VHF Antenna / white / incl. 8m cable
GLOMEX MAKO VHF Antenna / white / incl. 8m cable
only €67 18 €89.00
No rating yet
7 left in stock
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
MAKO VHF Antenna / white / incl. 8m cablePreview image
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Product image of GLOMEX MAKO VHF Antenna / black / incl. 8m cable
GLOMEX MAKO VHF Antenna / black / incl. 8m cable
only €67 18 €89.00
No rating yet
9 left in stock
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
MAKO VHF Antenna / black / incl. 8m cablePreview image
NEW
A VHF marine radio is one of the most important pieces of safety equipment on any boat. But beware! The best radio device can only ever function to its maximum potential if the VHF antenna is also of high quality. It's true that any wire can become an antenna, as long as the length is proportional to the frequency of the radio signals, but it's not that easy. Find out everything you need to know to get maximum performance from your marine VHF antenna, for maximum range, clear transmission and reception and thus for your safety at sea. Want to buy a VHF antenna for a boat? In our shop you will find marine VHF antennas at unbeatable prices from specialized manufacturers such as SHAKESPEARE or GLOMEX. Our range includes VHF radio devices, AIS devices or marine radios and multimedia. Learn more about VHF Marine Radio Antennas...

How to install a marine VHF antenna on a boat?

- Choosing the best marine VHF antenna and installing it correctly for optimal reception - 

Choosing the right antenna and installing it correctly are essential for the proper functioning of an on-board VHF radio device, depending on the range and quality of communication. Depending on the manufacturer, antennas are made of stainless steel, fiberglass or are coated with elastic black rubber. To further improve reception, an amplifier can additionally be installed.

When installing a VHF antenna, a simple rule of thumb applies: the higher it is mounted, the greater the range. The VHF radio antenna is therefore always mounted at the top of the mast in sailing boats. You will also find the corresponding antenna mounts in our shop.

For sailboats, we recommend a VHF antenna with 3dB power gain. For motor boats, use as long an antenna as possible with a power gain of 6dB or 9dB. Many antennas can be mounted on foldable feet to reduce the overall height of the boat if necessary.

In principle, a marine radio system consists of three components, which, when combined and configured correctly guarantee the best results: the VHF radio device, the VHF antenna and a coaxial cable with connectors and plugs.

In addition to the VHF antenna, the cable has a very important function. The correct type of coaxial cable is crucial for the radio system, otherwise, the entire on-board network could itself become the antenna, which would result in noise and interference, making effective radio contact almost impossible.

When choosing the coaxial cable, pay attention to the characteristic impedance, which in radio systems is always 50 ohms, and to the attenuation of the cable, an indicator of how much energy is lost for each meter of cable. The attenuation is the same when sending and receiving - the thicker the cable, the better.

Two types of cable are common in the nautical sector: RG58U with an external diameter of about 5 millimeters for cables up to 11 metres long and RG213 with an external diameter of 10 millimetres for cables up to 50 metres long. It is important that the insulating material is resistant to sea water and UV rays. A tip: adapt the cable to the length needed for your boat, because every meter of coiled and not actually necessary cable reduces the reception performance.

How do VHF antennas for boats work in the radio system?

- Reception on board -

A VHF boat antenna is basically a device for transmitting and receiving electromagnetic waves. Strictly speaking, an antenna is a conductive metal object that transmits and/or receives electromagnetic waves from radio frequencies. Thus, the antenna is the most important part of a radio connection, it is the interface between the transmitter or receiver and the radio wave signals. The task of the antenna is to absorb or emit electromagnetic waves in order to communicate or broadcast information.

Since VHF radio masts are not usually directly connected to the transmitter or receiver, it is important that the cables and connectors have been designed for the specific requirements of marine life, i.e. they must be resistant to sea water and UV rays. When assembling, keep in mind that every metre of cable and every connector or adapter attenuates the signal: the higher the gain of an antenna, the longer the antenna cable can be. The better the quality of the cable, the longer the cable can be.

For example, the ISAF rules for offshore racing prescribe a maximum attenuation value for 50 ohm coaxial cables. The rule is: the longer the coaxial cable, the greater the attenuation. According to the ISAF, a maximum power loss of 40% is still permitted, meaning that at least 15 watts of the original 25 watts of transmit power must go to the VHF antenna.
 

Further tips

Ideally, the radio system should operate independently of other equipment on board. This means that it must have its own power supply with a suitable fuse. In addition to a permanently installed marine VHF antenna, an external antenna should be carried on board in case of emergencies, such as if a lightning strike damages the installed antenna.

A VHF antenna can be used for several devices at the same time for example, in addition to marine radio, it can also be used for radio and multimedia reception or AIS. However, an AIS antenna splitter is required for this.

If the marine radio is installed below deck on the navigation table, as is usual, radio messages in the cockpit are often difficult to understand. Some radios therefore have an optional second control unit for the helm station, or alternatively it is also possible to install an external loudspeaker.

Customer ratings & reviews

All reviews (151.264)
User profile icon

Gregor H. on 18.03.2024

D

User profile icon

CRISTIAN DAN P. on 18.03.2024

Perfect !

User profile icon

Bostjan K. on 18.03.2024

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