User 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: [e-mail]
web www.dekolink.com
50W rev 1  10/03 Page 15 of 16
7. 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, area. 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.