Programming instructions

Appendix A: FAQ
A-3
Alvarion
Collocation
How many BU-DS.5800 or RB-DS.5800 units can be collocated on
the same building or tower?
You can collocate up to 4 BU-DS.5800 or RB-DS.5800 units on the
same structure. Each unit is assigned to one of the non-overlapping
channels, 1, 6, 11 or 14.
What is the antenna separation requirement for collocating
BU-DS.5800 or RB-DS.5800 units on the same building or
tower?
The antennas should be mounted at least 3 feet (1 meter) apart when
using the sector or parabolic dish antenna and 4 feet (1.2 meter) when
using the integral antenna.
Can a 2.4 GHz network operate in the same area as the BreezeNET
DS.5800?
Yes, however be aware that the DS.5800 uses 2.412 to 2.484 GHz as a
first I/F (Intermediate Frequency). Therefore, a powerful 2.4 GHz band
signal can cause interference. For this reason, Alvarion offers an
optional 5 GHz band pass filter that will suppress any strong 2.4 GHz
signals. With the filter, a strong 2.4 GHz signal (36dBm EIRP) can be in
the path ands only 1 meter away from the DS.5800. Without the filter, it
depends on the resulting converted 2.4 signal (2.4 signal + 3.328 = 5.7
GHz channel). If the shifted frequency is within +
25MHz of the DS.5800
channel you are using, then the strong 2.4 signal must be more then
500 meters away. If the resulting signal is outside +
25MHz, then only 1
meter separation is required.
Can I use DS.5800 Bridges to feed a Frequency Hopping
distribution point?
Yes, this is an ideal application. Just be certain that none of the FH
system’s antennas at the collocation site are pointing into the DS.5800
antenna.