User's Manual

Dekolink WIRELESS Ltd.
16 Bazel St. Qiryat-Arieh Petah-Tikva, Israel, 49510
Tel- 972-3-9180-180 Fax-972-3- 190-9180
e-mail: marketing@decolink com web www decolink com
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10 of 14 50W rev 4  02/04
RF EXPOSURE WARNING
In order to satisfy the FCC RF exposure requirements, you must ensure that the
installation complies with the following:
One antenna is connected via cable that has typical 1~10 dB attenuation
(depends on the length of the cable) to the BDA base port. This antenna is
installed outdoor and has very sharp beam (Yagi type or similar) pointed to the
donor (BTS). This type of antenna has about 10 dBi gain. Typical specifications:
gain: 8 dBd (=10.1 dBi), VSWR: better than 1.5:1 , Impedance: 50 ohm. The
outdoor antenna must be installed to provide a minimum separation distance of
1 m (100 cm) from persons within the area.
The second antenna is connected to the BDA MOBILE port. There are two
applications: Outdoor and Indoor.
In the case of Outdoor the type of antenna is omnidirectional (isotropic) with 0 to
2 dBi typical gain, or wide beam with up to 8 dBi gain, and is installed on a mast
to cover shadowed, outdoor, areas within the normal coverage area of the Base
Station. This antenna must be installed to provide a minimum separation
distance of 2 m (200 cm) from persons within the area
In the case of Indoor coverage the power is split to several, omnidirectional
(isotropic) antenna with 0 to 2 dBi typical gain, and distributes to different indoor
areas (in building floors, tunnels, basements, parking lots, shopping centers
etc.). Typical specifications: gain: 2 dBi, VSWR: better than 2:1 , Impedance: 50
ohm. At least 5 such antenna must be connected to the BDA using cables and
splitters. In this case the max. EIRP from each antenna will not exceed 3W so
that the minimum required separation distance from persons within the area is
20cm.
Less separation is needed if the power is divided into more than 5 antenna
covering many floors or areas.