Marantz AV7703 Owner's Manual page 349

2) Connect the Pre Tuner to your home network
Wired LAN
Connect an Ethernet cable (not included) between your Pre
Tuner and your network router.
Router
To LAN port
Wireless LAN
When connecting to wireless LAN (Wi-Fi), follow the
instructions in "Connecting the external antennas for
Bluetooth/Wireless connectivity" and connect the antennas.
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