User's Manual

Boomer-III User Manual & Integrator’s Guide_________________________________________________Installation
BM310012WT05 39 Copyright Wavenet Technology © October 2003
The power output of the Boomer-III OEM Modem is nominally 2W at
the antenna port. The antenna gain or loss will affect the radiated value.
Connecting the Antenna
The Boomer-III OEM Modem Module provides an MMCX RF
connector located at the top of the unit, to attach to the antenna cable.
The antenna does not plug directly into the modem but uses an antenna
cable to interface between the device and the modem.
The antenna cable should be a low loss, 50Ω impedance and have a
MMCX plug that can mate with the modem’s MMCX socket. It is
recommended that a Huber+Suhner connector be used to connect to the
modem as below:
 11 MMCX series Straight Connector
 16 MMCX series Right Angle Connector
If an extension cable is required to the antenna, it should be low loss, as
short as possible and an impedance of 50 ohms. Proper matching
connectors should be used, as each connector introduces a return loss
and reduces performance.
Positioning the Antenna
Positioning the antenna will affect the gain provided by the antenna.
The antenna should be orientated so that it provides vertical
polarisation as the radio network is based on vertically polarised radio-
frequency transmission.
The antenna should be located as far from the active electronics of the
computing device as possible. Typically, a metal case of a computing
device and its internal components may attenuate the signal in certain
directions. This is undesirable as the sensitivity and transmit
performance of the Boomer-III would be reduced. However, careful
use of metal used for the ground plane for an antenna can improve the
antenna gain and the coverage area for the system.
If your device is designed to sit on a surface, the antenna should be
positioned as far from the bottom of the device as possible. This is to
reduce the radio frequency reflections if the device is placed on a metal
surface.
If your device is hand held or is worn next to the body, the antenna
should be positioned to radiate away from the body.
The integrator should refer to the statement of Compliance on page 8 of
this manual and Regulatory Requirements section from pages 19
onwards, for country requirements.
Source Based Time Averaging Function
For portable or handheld applications the integrated host/terminal must
comply with OET Bulletin 65 and Supplement C (June 2002) with
respect to Specific Absorption Rate (SAR) requirements.