User's Manual

Wideband Radio Head Overview
044-05251 Rev A 1-3
Overview
Figure 1-1 Powerwave Wideband Radio Head (WRH)
Powerwave WRHs work as bi-directional on-frequency amplifiers used to fill out uncovered areas in
wireless mobile systems such as base station fringe areas, tunnels, convention centers, airports and
business buildings. It receives, amplifies and transmits signals to/from a base transceiver station (BTS)
to/from mobile stations (MS) with both directions being served simultaneously. Connections to the
WRH are made with N-type or 7/16" male connectors.
WRHs are microprocessor controlled with alarm and operational status LEDs visible on the front cover.
Cooling is provided through convection heat dissipation. Operational parameters, such as gain,
channel number and power levels are set using a PC running Powerwave OM-Online software which
can communicate with the WRHs either locally or remotely via modem. Remote operation can be
performed via PSTN or a GSM net. The Operation and Maintenance System (OMS) provides for
Network Operations Center (NOC) configuration and alarm monitoring.
WRHs can be configured in many combinations depending on the wireless system, single or double
system operation, and output power. The following paragraphs provide a description of the different
models of WRH’s available.
WRH
The Standard WRH is used for analog or digital systems such as GSM, TACS, ETACS, AMPS,
DAMPS, CDMA and WCDMA. It can be equipped with two bands in the cabinet and two bands in a high
cover. It has a fiber optic donor port and an RF port for a service antenna (or RF cable) and is designed
to be connected to a BTS via a BMU or OCM.
A booster option is available for the standard WRH to provide greater output power. This unit is
equipped with a 6dB Booster Amplifier (BA) in the downlink path. The BA reduces the number of bands
with one band per BA used in the cabinet and an additional one band if a high cover is used. The BA
is located in the cabinet and is supplied from the existing PSU. For two bands, a high cover is used.
WRH-V
The WRH-V is designed to provide a higher output power level and comes equipped with a MCPA in
the downlink path. The MCPA restricts the number of bands to one in the cabinet and one additional
band if a high cover is used. The MCPA is located in the cabinet and is supplied from the existing PSU.
For two bands, a high cover is used.