User's Manual

High Power Wideband Radio Head (WRH-V) Overview
044-05251 Rev B 1-3
Electrostatic Discharge (ESD)
ESD can severly damage essential parts of the equipment if not handled carefully. Parts on
printed circuit board assemblies (PCBA) as well as other parts in the equipment are sensitive
to ESD. Never touch the PCBA or uninsulated conductor surfaces unless absolutely
necessary.
If you must handle the PCBAs or uninsulated conductor surfaces, use ESD protective
equipment or first touch the chassis with your hand. Never let your clothes touch PCBAs or
uninsulated conductor surfaces and always store PCBAs in ESD-safe bags.
Overview
Figure 1-1 Powerwave Wideband Radio Head (WRH)
Powerwave WRH-Vs work as bi-directional on-frequency amplifiers used to extend coverage into uncovered
areas in wireless mobile systems such as base station fringe areas, tunnels, convention centers, airports and
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-V are made with N-
type or 7/16" male connectors.
WRH-Vs 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 and power
levels are set using a PC running Powerwave OM-Online software which communicates with the WRH-Vs
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.
WRH-Vs 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-
Vs available.
The WRH-V is a fiber fed system designed to provide a high 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.