INSTALLATION AND MAINTENANCE MANUAL
E1 FAMILY
LICENSED & SPREAD SPECTRUM RADIOS
JUNE 2001
SECTION 2: PRODUCT DESCRIPTION
PAGE 3-37
3.3.8
Antenna Planning
Using the path planning tools, proper antenna size can be determined which will yield the desired
path performance. In general, the larger the antenna that is used with the
Lynx
radio, the better the
link will perform. Larger antennas have narrower beamwidth and higher gain which will yield better
link performance (higher fade margin, better availability) and improve immunity to interference (due
to the smaller beamwidths). However, larger antennas are more costly to purchase and install than
smaller antennas, in some cases requiring special equipment for installation. All of these factors
should be taken into consideration when selecting antennas.
In areas where transmitted output power restrictions apply, the
use of larger antennas will maintain the benefit of narrow
beamwidths and receive gain. However, output power may need to
be reduced to meet regulations. (See Section 3.13.1)
Prior to installation, the specific antenna location and mounting should be determined. This
advanced planning also yields the transmission line requirements.
Only directional antennas should be used with Lynx radios.
These can be grid or solid parabolic antennas (minimum 2 foot
- .6 meter). Flat panel antennas are also acceptable if the
beam width is kept to a minimum.
