User’s manual for Remote Unit MOR801B Power
M0070A0A.doc
Id.-No 151155
Page 13
18-June-99
1 Introduction
1.1 Intended purpose
Cellular telephone systems transmit signals in two directions between base stations and
mobile telephones within the signal coverage area.
If weak signal transmissions occur within the coverage area because of indoor applications,
topological conditions or distance from the transmitter, a Repeater is used to extend
transmission range. In the downlink path the Repeater picks up the signal from a donor
antenna of an existing cell, amplifies and re-transmits it into the desired dark spot. In the
uplink direction the Repeater receives signals from mobile stations present in its coverage
area and re-transmits them to the corresponding base station.
1.2 About the MOR801B POWER
MIKOM’s MOR801B Power Remote is available as a band or channel selective optical
repeater for Analog, CDMA, and TDMA technology.
The MOR801B Power Remote repeater bi-directionally amplifies signals between multiple
mobiles and a single base station in the AMPS800 frequency band using optical fibres for
interconnection to a Master Unit. It is employed mainly in tunnels, canyons, and other areas,
where physical structures cause weak field strengths. It can provide highly selective
amplification of band segments or channels in the AMPS800 band.
The MOR801B Power Remote can be combined with other repeaters in order to create a
multi-band optical repeater system. Modules operating in PCS1900, GSM1800, GSM900, or
iDEN bands are available. When different modules are combined a common antenna and
control interface is available.
The MR801 Power Remote can be set-up locally at the Master Unit through the optical fibre
or remotely at the OMC. A PCMCIA slot for modem operation is an available option at the
Master Unit. The repeater has a large number of functions that can be monitored and changed
by the operators via a terminal emulation program or the MIKOM OMC software platform.
An easy to understand and simple to learn communication language is available to help the
operator query status reports from the repeater or to change settings.