User's Manual
32 63-70-076-DOC-1 September 2013
User ManualMARS-24ATR
Try to avoid using black plastics as they may be conductive due to carbon/graphite based colouring agents.
Clear glass is generally not conductive and can be used as a desk top material (for desktop applications). Smoked and
tinted glass may be conductive and any aect on antenna operation should be determined by measurement.
5.2 AntennA sepArAtion
Antennas mounted in a close proximity may cause mutual interference.
For antennas connected to the same MARS reader the safe distance between the antenna edges is antenna size
dependent and varies from 5 cm .
For antennas connected to two dierent MARS readers the safe distance between the antenna edges is also antenna
size dependent and varies from 30 cm .
Do not mount an antenna on a desktop surface if there is a MARS reader immediately below and under the antenna. The
distance between the antenna and the MARS reader should be no less than 20 cm. Use extended brackets to increase
the distance if required. Alternatively the MARS can be screened from the antenna by a purpose built ferrite shield.
In general no electronic devices or power adaptors should be placed within 20 cm of an antenna in any direction.
Before such installations are attempted Magellan must be consulted.
5.3 cAbles
Do not run any cables under or near an antenna. Maintain a minimum distance of 15 cm.
The cables that connect external antennas with the reader are provided by Magellan. The MARS readers should
only be operated with antenna cables supplied by Magellan. Any changes or modications to the equipment that
are not expressly approved by the party responsible for compliance will void the product warranty.
5.4 hoW to shield AntennAs
Antennas may be shielded by a purpose built ferrite sheet only. In special circumstances, devices such as keyboards
and computers may be placed under antennas where a purpose built ferrite antenna shield (64-50-001) is provided
to protect the antenna.
A ferrite shield consists of a sheet of aluminium with ferrite tiles, minimum thickness 5 mm.
Contact Magellan for further information on shielding antennas for your specic applications and for the specication
of the Ferrite Antenna Shield (64-50-001) when planning your installation.