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Contents ISM Band Repeater Demo Page About this Guide Table of Contents Demo KIT Contents Repeater Block Diagram OverviewTraditional mode Description LCDDemo Unit This page is intentionally left blank Radio Hardware IA4220/21 Transmitter SectionSchematic Push Button Demo TX Board IC1PCB Layout 434 MHZ Push Button TX Board PCB Layout 915 MHZ Push Button TX Board IA4420 Transceiver Section Ohm Transceiver LCD Board Ohm Transceiver Non-LCD BoardSchematic Repeater DemoPCB Layout 50 OHM Repeater Demo LCD Version Schematic IRQ GND SCK Miso Mosi IC1PCB Layout 50 OHM Repeater Demo NON-LCD This page is intentionally left blank IA4320 Receiver Section Schematic 434 MHZ Push Button RX Board IA4320PCB Layout 434 MHZ Push Button RX Board Schematic 915 MHZ Push Button RX Board PCB Layout 915 MHZ Push Button RX Board