User's Manual

Page 16 of 21
IDEN Digital Repeater Installation
Manual
12 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 10dBi 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 via cable that has typical 1~10 dB attenuation (depends on the
length of the cable) to the BDA MOBILE port. This type of antenna is omnidirecttional
(isotropic), or wide beam, with 0 to 2 dBi typical gain and is installed and distributes indoor (in
buildings, tunnels, basements, park lots, shopping centers etc.). Typical specifications: gain: 2
dBi, VSWR: better than 2:1, Impedance: 50 ohm. For direct connection to the BDA this antenna
must be installed to provide a minimum separation distance of 2 m (200 cm) from persons within
the area.
Less separation is needed if the power from this power is divided into many antennas covering
many floors or areas.