User's Manual

AirHarmony-4000 (External Cavity Filters) Installation Guide
UGD-D01019 Airspan Commercial and Internal Use 8
Antenna System
AirHarmony-4000 comes in a range of frequency variants that can be mounted with different
antenna options and formats. A typical installation will have a cross-polar sector or dual slant
antenna connected to the approprate Cavity filter of the AirHarmony-4000 variant unit. Various
antennas are designed specifically for AirHarmony-4000 deployments; specifications are available
from Airspan separately.
Long Switched Beam Antenna
Long Switched Beam antenna variant includes a steerable antenna mounted on the unit with the
following specification. The antenna is a multi-element cross polarized (dual slant) design which can
be used in directional or Omni modes of operation.
Scenario #1 - The long switched beam antenna is mounted directly on the unit and connected via its
two RF ports and the control port. The GPS antenna is either mounted on the top of the unit (if
conditions allow) or mounted separately with approved lightning protection.
Scenario #2 - The long switched beam antenna is mounted on the pole above the unit connected via
its two RF ports and the control port.
External Antenna
The externally mounted antenna should be a dual slant or cross polarized fixed antenna which are
connected via two (2) DIN connectors located on the top panel or to the external Cavity filter. The
antenna should be mounted to its appropriate mounting facility.
Note: When utilized in conjunction with iRelay as backhaul maintain a vertical separation of at least
1 meter.
Figure 1: AirHarmony-4000 with external cavity filters & cover