User Manual

Duo-i6525 RF Repeater
User Manual V1.2
Advanced RF Technologies, Inc. Proprietary Document Page 11 of 32
2.3.5 Quad-Plexer
It consists of four BPFs (band-pass filters) each of the four RF signal paths:
SMR 800 (Tx & Rx) and SMR 900 (Tx & Rx)
2.3.6 Digital Filter
It is composed of A/D (analog to digital) and D/A (digital to analog) converters.
It also has a FPGA (field programmable gate array) which has the capability
for superior out-of- band rejection and re-banding.
Figure 5 – Duo-i6525 Repeater Internal Components Diagram
Noise Filter
Quad-Plexer
Down Converter
Digital Filter
Digital Filter
Power Supply
Quad-Plexer
Up Converter
Controller
DHCP
Sub Board
Interface Board