A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
22
MICA Series
Hardware Reference Manual
Antenna Precautions
If the antenna is to be mounted outside, always consider the risk of a lightning strike.
Follow the instructions provided by the antenna manufacturer. In addition please
observe the following:
»
Never connect more than one router to a single antenna. The router can be
damaged by radio frequency energy from the transmitter of another router.
»
With all mobile station equipment, the antenna of the router emits radio frequency
energy. To avoid EMI (electromagnetic interference) you must determine if the
application or equipment in the application’s proximity, needs further protection
against radio emission and the disturbances it might cause. Protection is secured
either by shielding the surrounding electronics or by moving the antenna away
from the electronics and external signal cables.
»
The router and antenna may be damaged if either come into contact with ground
potentials other than the ground potential used in your application. Beware,
ground potentials can vary significantly between hardware platforms.
Exposure to RF Energy
There has been some public concern about possible health effects of using GSM
equipment in close proximity to a person or body. Although research on health effects
from RF energy has focused for many years on the current RF technology, research
has begun on new radio technologies, such as GSM and UMTS. After existing
research had been reviewed, and after compliance to all applicable safety standards
has been tested, it has been concluded that the ZETA series router is fit for use.
If you are concerned about exposure to RF energy, there are a number of things you
can do to minimize exposure. Obviously, limiting the duration of time near a device
will reduce your exposure to RF energy. In addition, you can reduce RF exposure by
operating your router efficiently by adhering to the following guidelines:
Electronic devices:
Most electronic equipment, for example in hospitals and
motor vehicles is shielded from RF energy. However, RF energy may affect some
malfunctioning or improperly shielded electronic equipment.
Vehicle electronic equipment:
Check your vehicle manufacturer’s representative to
determine if any on board electronic equipment is adequately shielded from external
RF energy.
