MX535 UAIS Transponder Unit

Technical & Installation Manual

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3.5.2GNSS Antenna Installation

Antenna Location

The GNSS antenna must be installed where it has a clear view of the sky, so that it accesses the horizon freely through 360°, with a vertical observation of 5 to 90 degrees above the horizon. Small diameter obstructions, such as masts and booms, do not seriously impair signal reception, but such objects must not eclipse more than a few degrees of any given bearing.

The antenna must be located at least three meters away from, and out of the transmitting beam of high-power transmitters (S-Band Radar and/or Inmarsat systems). This includes the ship’s own AIS VHF antenna, if it is designed and installed separately.

If a DGNSS system is included or connected to the AIS system, the installation of the antenna should be undertaken in accordance with IEC 61108-4, Edition 1.

Cabling

To achieve optimum performance, the gain of the antenna pre-amplifier should match the cable attenuation. The resulting installation gain (pre-amplifier gain - cable attenuation) should be within 0 to 10 dB.

RG214 at GPS attenuation per meter of app. 0.35 dB/m (45m = 15.75dB) GPS frequency app. 1.2GHz

The coaxial cable between the antenna and the AIS ship borne station connector should be routed directly, in order to reduce electromagnetic interference. The cable should not be installed close to high-power lines, such as radar or radio-transmitter lines, or near the AIS VHF antenna cable. A space of one meter or more is recommended in order to avoid degradation due to RF-coupling. Crossing of antenna cables should take place at 90 degrees, to minimise magnetic field coupling.

Antenna Layout

The position of the VHF und GNSS – antennas must be added to the existing antenna layout of the vessel.

Power Supply

The MX535 transponder must be supplied from the emergency power source. A further requirement is to connect AIS to the reserve power source of the GMDSS. A new battery capacity calculation must then be undertaken.

Following documents are needed for the installation approval of the classification

Antenna Layout (arrangement)

Battery Calculation

Connection / Block – Diagram with locations

Type Approval Certificate

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Leica MX535 manual Gnss Antenna Installation Antenna Location, Antenna Layout, Power Supply

MX535 specifications

The Leica MX535 is a compact and sophisticated point-and-shoot camera designed for photography enthusiasts who appreciate both portability and high-quality imaging capabilities. Known for its exceptional optical performance and robust build quality, the MX535 offers a unique blend of classic Leica aesthetics with modern technological advancements.

One of the standout features of the Leica MX535 is its 24-megapixel CMOS sensor, which delivers stunning image quality with high resolution and impressive detail. Coupled with the Leica Maestro image processor, it ensures fast processing speeds and excellent noise control even at higher ISO settings. Photographers can expect vibrant colors and dynamic range, making the MX535 ideal for various shooting conditions.

The camera is equipped with an integrated optical viewfinder, providing a clear and bright view of the scene. This feature is particularly favored by photographers who enjoy composing their shots visually rather than relying solely on electronic displays. The 3-inch LCD screen on the back provides intuitive access to settings and playback, making it easier to review images in bright sunlight.

A significant technological advancement in the Leica MX535 is its autofocus system, which employs contrast detection and offers multiple focus points for greater precision. This system allows for quick focus adjustments and ensures that subjects remain sharp even in challenging lighting situations. Additionally, the camera features different shooting modes, including manual focus, giving photographers the flexibility to achieve their desired creative vision.

The MX535’s construction is robust, featuring a magnesium alloy body that not only enhances durability but also provides a comfortable grip. Its weather-sealed design makes it suitable for outdoor photography and protects it against dust and moisture, providing versatility for photographers who enjoy various environments.

Another key characteristic of the Leica MX535 is its compact design, making it easy to carry anywhere without compromising on quality. With its sleek lines and classic design elements, it attracts attention while embodying the timeless heritage of Leica cameras. The camera also supports full HD video recording, allowing users to capture motion alongside still images with stunning clarity.

In conclusion, the Leica MX535 stands out as a premium compact camera that combines exceptional image quality, advanced technology, and an elegantly durable design. With its impressive features, it caters to both amateur and experienced photographers who seek a reliable and stylish camera for everyday use or special events.