Sony STR-AZ3000ES Startup Manual page 423

Help Guide
Multi Channel AV Receiver
STR-AZ7000ES/STR-AZ5000ES/STR-AZ3000ES
The FM reception is poor.
Extend and adjust the position of the FM wire antenna (aerial) to a place where the reception conditions are good.
Place the FM wire antenna (aerial) near a window.
After connecting the FM wire antenna (aerial), keep it as horizontal as possible.
Related Topic
The FM stereo reception is poor.
Connecting the antennas (aerials)
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