Sangean SG-622 (V1) - Manual (Page 5)

Antenna
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The receiver is fitted with a built-in bar antenna for the MW
wavebands reception. This antenna is directional and may be
necessary to rotate the set slightly for best reception.
FM reception is best obtained by raising the telescopic antenna
then angling it and rotate the set for best reception.
SW reception is best obtained by raising the telescopic antenna to its
Fullest extent and using the radio with the antenna upright.
If the reception is generally poor, select a different position near a
window perhaps.
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