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DSPbR Series 

– User’s Manual

 

Document Number 00000.B                                                                                                           Page 10/75 

 

2. PRODUCT INTRODUCTION. 
 
2.1 Application

 

 
The RF Industries DSPbR (Digital Signal Processor based Repeater) Series is designed as a multi-channel, 
multi-band expandable rebroadcast repeater/booster used for extending network coverage in either outdoor or 
indoor applications. 
 
Ideal for cost effective expansion of a network coverage boundary or to provide multi-site coverage footprint 
from a single site infrastructure – without the need for large-scale site developments with dedicated backhauls. 
 

2.2 Product Overview 

 
The DSPbR is a modulation transparent, channel bandwidth adaptive, spectrally clean, high power channel 
selective rebroadcast repeater/booster. The DSPbR strengths lie in its modular upgradability and user-friendly 
adaptable connectivity options for configuration and alarm reporting. The DSPbR can be used to rebroadcast 
both analogue and most digital modulation schemes. 
 
Sub Rack Frame 
 
The DSPbR is built into a standard 19” 4RU sub rack frame with top, bottom and side covers. 
 
 DSP technology  
 
The RF Industries DSPbR uses Digital Signal Processing technology, replacing traditional fixed hardware used 
in IF filtering such as crystal filters with software defined digital filtering providing flexibility and real time 
optimisation.  When a migration of technology is required, whilst using a DSPbR rebroadcast repeater/booster 
this is simply achieved through a configuration change via the web based browser interface where a number of 
the specifications can be re-configured such as channel filter profile, uplink and downlink frequencies, output 
power or gain. The DSP capability allows for up to 8 bi-directional channels in a single sub rack frame. Up to six 
individual configuration dependent bands can be accommodated, each band having a fixed bandwidth of 
20MHz.     
 
The frequency agility of the DSPbR within the predetermined band of the respective RF module allows for either 
“on-air” rebroadcast of the incoming frequency or translation of the incoming frequency to a different 
rebroadcast frequency across a number of bands and channels. 
 
The DSPbR can be used for frequency shifting or bridging a number of channels to a second DSPbR unit 
remotely sited from a host BTS to extend the BTS frequencies without facing input to output isolation problems 
when broadcasting on the same frequency. The major advantage in not having to rebroadcast “on frequency” is 

Содержание DSPbR Series

Страница 1: ...Australian Provisional Patent Application No 2009905291 User s Manual Rebroadcast Repeater Booster Base Line release 1 0 DSPbR Series TM...

Страница 2: ...u Note Operation of this equipment pursuant to Part 90 of the FCC rules should be identified by selecting Part 90 Operation in the GUI Channel Configuration screen thereby limiting the per channel RF...

Страница 3: ...let Module 3 3 2 PSU Power Supply Module 3 3 3 CSC Central System Controller Module 3 3 4 Ref Gen Aux Reference Generator Module 3 3 5 DSP Digital Signal Processor Module 3 3 6 RFFE RF Front End Modul...

Страница 4: ...5 4 CSC Module Front Panel LCD Display Mode Buttons and LED s 5 5 Uploading and Downloading Firmware 6 Temperature Management 7 Alarming and Supervision 8 Firmware User s Licence Agreement 9 Maintena...

Страница 5: ...Processor DSPbR Digital Signal Processor based Repeater ETSI European Telecommunication Standards Institute GPS Global Positioning System GUI Graphical User Interface IF Intermediate Frequency MS Mobi...

Страница 6: ...9 RFFE BPFM Bolted together 10 Bolting RFFE or RFBE onto BPFM 11 Cxxx8 8 Ch Internal Combiner Filter Unit 12 Slot Allocation Architecture 13 DSPbR Dimensions Front View 14 DPSbR Dimensions Rear View...

Страница 7: ...stallations as well as regulations covering use of tools and personal protective equipment It is the responsibility of the network operator or service provider to have in place and implemented an appl...

Страница 8: ...ortion of the equipment may reach relatively high temperatures Please take the necessary precautions when servicing or removing any RFBE modules filters transmitter combiners or unscrewing any termina...

Страница 9: ...buildings large commercial business and retail buildings and shopping centres university campuses airports railways stations and sports stadiums the applications are numerous RF Industry designs and m...

Страница 10: ...ssing technology replacing traditional fixed hardware used in IF filtering such as crystal filters with software defined digital filtering providing flexibility and real time optimisation When a migra...

Страница 11: ...cket connection from either the front or rear of the sub rack This can be achieved either locally with the use of an IP Ethernet jumper cable or remotely having connected the unit into an IP Ethernet...

Страница 12: ...Auxiliary module includes GPS and optional cell modem RFFE RF Front End band specific RFBE RF Back End band specific BPFM Band Pass Filter band specific bolted to input of RFFE and output of RFBE TLM...

Страница 13: ...etwork with the cellular modem in a TCP IP session where an IP network is not available on site The DSP module is partitioned into Side A and Side B boards populated according to the number of channel...

Страница 14: ...combiner depending on type may be restricted to fixed frequencies External Duplexer Where uplink or downlink paths require combining into a single feeder network or antenna an external duplexer will...

Страница 15: ...multi racks Please consult with RFI Synthesiser Offset 0 00kHz or 6 25kHz Mode of Operation Full Duplex translating or non translating DSP channel filter profile options current 9 12 5kHz 15kHz 25 kHz...

Страница 16: ...Gated 1137W 945W Mechanical Sub Rack Frame Height 4RU Height 179mm Sub Rack Frame Depth including connectors 440mm RFFE input and RFBE output termination connectors N F Ref Gen GPS Antenna termination...

Страница 17: ...6VDC antenna termination connector SMA F Ref Gen module 10MHz clock internal reference generator GEN MON SMA F Ref Gen module 10MHz clock external reference EXT REF SMA F Ref Gen module Cellular mode...

Страница 18: ...cross different bands within the DSPbR series Expanding capability even further a single sub rack frame can be daisy chained using CAN bus interconnection to allow for additional sub rack frames to be...

Страница 19: ...larm The DSPbR hardware architecture requires a level of understanding in order for the configuration options to be understood The following sections provide an elementary explanation of the hardware...

Страница 20: ...ontroller CSC Reference Generator Ref GEN Aux Digital Signal processor DSP and at least a one RF Front End RFFE and corresponding RF Back End RFBE A BPFM is bolted onto an RFFE for insertion and or re...

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