JVC RX-D Series Training Book page 102

USB WIRE OR WIRELESS
Auto Scan
The Wireless USB additionally features "Auto Scan", which stops interruption from
other signals in the same room. When the system is turned on, this function
automatically detects electric waves from other devices --wireless LAN, for example
--and selects a band that won't be interrupted by the other signals. When the signal
transmission is interfered by other waves while using the unit, simply press and hold
the "Channel Key" (on the transmitter) for a few seconds. The transmitter
automatically switches the band to a one that won't be interfered by the waves.
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