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Calculating Range & Clearance
The Dynamic Range Budget
Outdoor Antenna Installation Guide D-5
Link speed versus Range 4
Communications at lower data speeds may travel longer
distances. In situations where range is more critical to your
network than data speed, you may wish to limit the data speed to
1Mbit/s to increase the range of your wireless point-to-point link.
We have included the Dynamic Range Budgets for both 2 Mbit/s
and 1 Mbit/s links with each table to help you determine which data
speed is appropriate for your situation.
Determine Line-of-Sight Clearance 4
Use Table D-3 on page D-6 to determine the minimum clearance of
the signal path clearance required to achieve the maximum
possible range with the type of antennas and cable lengths you
selected.
NOTE
For the values referenced in Table D-2 on page D-4,
each 7-dBi antenna is connected to the RoamAbout PC
Card with a black-background label.
For the values referenced in Table D-2, each 14-dBi
antenna is connected to the RoamAbout PC Card with a
white-background label.
•
The values printed in italics use a black-background
RoamAbout PC Card at each end of the wireless
link.
•
All other values use a white-background RoamAbout
PC Card at one or both ends of the antenna link.
The listed Dynamic Range Budget values include the
loss of the mandatory RoamAbout Lightning Protector.