Calculating Range & Clearance
The Dynamic Range Budget
D-2 Outdoor Antenna Installation Guide
The Dynamic Range Budget 4
The Dynamic Range Budget is the sum of the following factors as
determined at both ends of the wireless outdoor link:
• Type of RoamAbout Outdoor Antenna:
— RoamAbout 7-dBi Omni-Directional Antenna, or
— RoamAbout 14-dBi Directional Antenna
• Length of the Antenna Cable required to connect the
RoamAbout Access Point to the outdoor antenna.
• Type of RoamAbout PC Card used
1
:
— The RoamAbout PC Card with the
black-background label
,
or
— The RoamAbout PC Card with the white
-background label.
To determine the Dynamic Range Budget that applies in your
situation, use either Table D-1 on page D-3, or Table D-2 on page
D-4 (subject to radio regulations that apply in your country):
• Use Table D-1, for the USA, Canada, and any other country
that adheres to the radio regulations as defined by the United
States Federal Communications Commission (FCC).
• Use Table D-2, for all European countries, Japan, and any
other countries that adhere to the radio regulations as defined
by the European Telecommunications Standards Institute
(ETSI).
To determine the Dynamic Range Budget, use the horizontal axis
of the table to select the equipment installed in building X, and the
vertical axis to select the equipment in building Y.
1 The choice of this card is subject to local radio regulations (see
Selecting
the Right RoamAbout PC Card
on page 2-3).
