User's Manual

Page 7 of 21
IDEN Digital Repeater Installation
Manual
5 RF Block Diagram
BASE
ANT
Uplink
Downlink
Down-
Converter
Down-
Converter
Up-
Converter
AGC
AGC
AGC
AGC
AGC
AMP
AGC
AMP
AGC
LNA
AGC
LNA
Up-
Converter
Power
Monitor
PA
Power
Monitor
PA
Digital Filters
Digital Filters
Duplexer
MOBILE
ANT
Duplexer
Micro
controller
Controller
Power
Supply
Interface
Box
Channeler
Figure 1: Digital Repeater RF Block Diagram.
Dekolink Wireless channel selective repeaters employ digital processing techniques to attain
versatile programmable filter arrays in both the uplink & downlink paths.
The RF signal entering the repeater, is filtered by a duplexer, amplified, down converted &
sampled to digital signals. The digital signal is filtered using fast parallel logic.
Using digital processing techniques, the system generates up to 8 separate, programmable
and independent filters.
After filtration is accomplished, the digital signals are up-converted to an RF signal,
amplified by a High Power Amplifier & combined by a duplexer to the output port.