Hardware manual

TVI I300 Hardware Manual

Page 16

Cellular Operation

The choice of external antenna will depend on operational factors and on the frequency bands

used by the selected network. To support global operation an antenna must support the

following GSM / WCDMA frequency bands;

70 MHz in GSM850 80 MHz in GSM900

170 MHz in DCS & 140 MHz in PCS

70 MHz in WCDMA850

140 MHz in WCDMA1900 250 MHz in WCDMA2100

Where the network is known, the user should select the most suitable antenna based on the

frequency band(s) provided by that network operator.

An antenna must have the following characteristics to match the Telit UC864-G modem;

VSWR

absolute max <= 10:1

recommended <= 2:1

Input power > 33dBm peak power in GSM

Input power > 24dBm average power in WCDMA

Impedance 50 ohm

Furthermore if the I300 is used in the US market and/or Canada market, it is the responsibility of

both the manufacturer of the product containing the I300 and the end user to ensure that the use

of the product complies with the FCC and/or IC approval requirements.

The system antenna(s) used for this product must be installed to provide a

separation distance of at least 20 cm from all the persons and must not be co-

located or operate in conjunction with any other antenna or transmitter.

The system antenna(s) used for this product must not exceed 3 dBi for mobile

and fixed or mobile operating configurations.

Users and installers must be provided with antenna installation instructions

and transmitter operating conditions for satisfying RF exposure compliance.

The product manufacturers are advised to clarify any regulatory questions and to have their

complete product tested and approved for FCC compliance.

It is recommended that the I300 is powered down before a SIM is removed or inserted to avoid

any inconsistency in the network settings stored by the Telit UC864-G module which may result

in a failure to connect to the network.