ANTENNAS AND ACCESSORIES FOR YACHTS AND SHIPS
Yachts and ships demand special antennas. As the space to mount an antenna is mostly limited, the antennas must be small. They must be also very sturdy, salt water proof, able to withstand icing, hurricanes and tropical heat. Regulations demand that larger sea-going vessels have to be equipped with the Global Marine Distress and Safety System (GMDSS). Within a few years these regulations will become also valid for smaller ships and yachts. In the meantime, monitoring the NAVTEX transmissions on 518 kHz and reception of weather charts transmitted on shortwave, is highly advised. Although the antennas below are mentioned for marine use, they can also be used in any other application with harsh climate conditions or limited space.
* MLB Marine
Sailing yachts are mostly equipped with an insulated back-stay. The MLB Marine is a special matching transformer, equal to the standard Magnetic Longwire Balun, but housed in a stainless steel tube, filled with epoxy resin. This tube can be clamped to the stay. The MLB Marine converts the stay into a wideband (100 kHz - 40 MHz) receiving antenna.
* Lowe AA - 150 Marine
This active wideband antenna for the 30 kHz - 30 MHz frequency range is just 1.25 mtrs long and made of stainless steel. It will fit on any standard marine antenna mounting with 1 inch thread. This antenna can be directly connected to the Lowe HF 150 Marine or other receivers with a feed for active antennas, but with the optional DC 30 adaptor it can be used with any other receiver. Due to the small dimensions, the Lowe AA - 150 Marine antenna is perfectly suited for the use on smaller yachts and ships.
* MT/GMDSS Antennas
These stick-type antennas are just 2 metres long with a diameter of 32 mm. Originally developed for the Dutch Navy, therefore nearly indestructible. These antennas can withstand any climate, hurricanes, icing, high static charges and St. Elmo's fire. The passive design makes it possible to place and operate these
antennas close to transmitting antennas and radars without damage or overload. The Magnetic Transfer (MT) technology reduces interference and noise generated by electrical equipment on-board.
* GMDSS - 2 Antenna
This antenna has the same indestructible construction as the larger GMDSS antenna, but is only 1.25 mtrs long with a diameter of 32 mm. It is the world's smallest passive wideband antenna and especially mentioned for smaller ships and other applications with limited space. The frequency range covers NAVTEX and the most used marine bands. Like its larger brothers, it can be placed close to transmitting antennas and radars without overload.
* DX 500 antenna system
The DX 500 antenna system is designed for yachts where no space for a large antenna or several antennas for different bands is available. The advantage of the DX 500 system is that the antenna it selves is extremely small (just 40 cm long and 32 mm diameter), so it can be mounted on any convenient place on the ship. The antenna is made of polished stainless steel, looks and is very professional and it can withstand any climate. One of the remarkable features is that the antenna covers the enormous frequency range from 30 kHz - 550 MHz. This offers the possibility to receive long wave, maritime beacons, Navtex, medium wave, shortwave with all coastal stations, 27 MHz CB, VHF low band with police and other users, FM broadcast, airbands, VHF high band with all marine frequencies, amateur frequencies and the complete UHF bands at the same time. A range of indoor units, with frequency selective- or wideband outputs make it possible to use several receivers, for instance a shortwave receiver, a FM broadcast radio and a wideband scanner (for instance for monitoring the VHF channels) at the same time. A full range of other accessories, such as several mounting brackets, output level attenuators, duplexers, is also available.
* SP - 1 splitter
On many ships two shortwave receivers are used, for instance one for constant monitoring NAVTEX, the other for reception of weather charts or coastal stations. The SP - 1 makes it possible to operate two receivers on one antenna without mutual influence. Each receiver can be tuned and operated if it is connected to its own antenna.
* Power Isolator/ noise reducer
This noise reducer is a special isolation transformer, which separates the antenna from the receiver or transceiver. The Magnetic Transfer technology reduces noise and interference from electrical appliances on-board. The total separation of the antenna and the transceiver or receiver prevents leakage currents from cathodic protection electrodes to the hull on which the antenna is mounted.
Yachts and ships demand special antennas. As the space to mount an antenna is mostly limited, the antennas must be small. They must be also very sturdy, salt water proof, able to withstand icing, hurricanes and tropical heat. Regulations demand that larger sea-going vessels have to be equipped with the Global Marine Distress and Safety System (GMDSS). Within a few years these regulations will become also valid for smaller ships and yachts. In the meantime, monitoring the NAVTEX transmissions on 518 kHz and reception of weather charts transmitted on shortwave, is highly advised. Although the antennas below are mentioned for marine use, they can also be used in any other application with harsh climate conditions or limited space.
* MLB Marine
Sailing yachts are mostly equipped with an insulated back-stay. The MLB Marine is a special matching transformer, equal to the standard Magnetic Longwire Balun, but housed in a stainless steel tube, filled with epoxy resin. This tube can be clamped to the stay. The MLB Marine converts the stay into a wideband (100 kHz - 40 MHz) receiving antenna.
* Lowe AA - 150 Marine
This active wideband antenna for the 30 kHz - 30 MHz frequency range is just 1.25 mtrs long and made of stainless steel. It will fit on any standard marine antenna mounting with 1 inch thread. This antenna can be directly connected to the Lowe HF 150 Marine or other receivers with a feed for active antennas, but with the optional DC 30 adaptor it can be used with any other receiver. Due to the small dimensions, the Lowe AA - 150 Marine antenna is perfectly suited for the use on smaller yachts and ships.
* MT/GMDSS Antennas
These stick-type antennas are just 2 metres long with a diameter of 32 mm. Originally developed for the Dutch Navy, therefore nearly indestructible. These antennas can withstand any climate, hurricanes, icing, high static charges and St. Elmo's fire. The passive design makes it possible to place and operate these
antennas close to transmitting antennas and radars without damage or overload. The Magnetic Transfer (MT) technology reduces interference and noise generated by electrical equipment on-board.
* GMDSS - 2 Antenna
This antenna has the same indestructible construction as the larger GMDSS antenna, but is only 1.25 mtrs long with a diameter of 32 mm. It is the world's smallest passive wideband antenna and especially mentioned for smaller ships and other applications with limited space. The frequency range covers NAVTEX and the most used marine bands. Like its larger brothers, it can be placed close to transmitting antennas and radars without overload.
* DX 500 antenna system
The DX 500 antenna system is designed for yachts where no space for a large antenna or several antennas for different bands is available. The advantage of the DX 500 system is that the antenna it selves is extremely small (just 40 cm long and 32 mm diameter), so it can be mounted on any convenient place on the ship. The antenna is made of polished stainless steel, looks and is very professional and it can withstand any climate. One of the remarkable features is that the antenna covers the enormous frequency range from 30 kHz - 550 MHz. This offers the possibility to receive long wave, maritime beacons, Navtex, medium wave, shortwave with all coastal stations, 27 MHz CB, VHF low band with police and other users, FM broadcast, airbands, VHF high band with all marine frequencies, amateur frequencies and the complete UHF bands at the same time. A range of indoor units, with frequency selective- or wideband outputs make it possible to use several receivers, for instance a shortwave receiver, a FM broadcast radio and a wideband scanner (for instance for monitoring the VHF channels) at the same time. A full range of other accessories, such as several mounting brackets, output level attenuators, duplexers, is also available.
* SP - 1 splitter
On many ships two shortwave receivers are used, for instance one for constant monitoring NAVTEX, the other for reception of weather charts or coastal stations. The SP - 1 makes it possible to operate two receivers on one antenna without mutual influence. Each receiver can be tuned and operated if it is connected to its own antenna.
* Power Isolator/ noise reducer
This noise reducer is a special isolation transformer, which separates the antenna from the receiver or transceiver. The Magnetic Transfer technology reduces noise and interference from electrical appliances on-board. The total separation of the antenna and the transceiver or receiver prevents leakage currents from cathodic protection electrodes to the hull on which the antenna is mounted.
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