Sony ICF-EX5MK2 - Page 10

ICF$EX5MK2+
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Synchronous+Detection+Circuit+
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MW!(MediumQWave)!and!Radio!NIKKEI!have!mirror!images!on!the!top!(UPPER)!and!
bottom!(LOWER)!of!their!carrier!signal,!or!double!sideband,!resulting!from!frequency!ba nd!
amplitude!modulation.!
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Beat!interference!from!adjacent!stations!often!occurs!in!one!frequency!band!of!the!double!
sideband!signal.!!You!can!extract!interference!from!a!sideband,!through!the!Synchronous!
Detection!Circuit,!so!clearer!reception!may!be!possible.!!This!is!accomplished!through!the!
Sync/NORMAL!switch.!
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In!the!illustration!below,!there!is!interference!from!an!adjacent!channel!above!the!channel!
we!wish!to!listen!to!(shaded!black).!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Since!there!is!&+)$.'$.$+%$!in!the!UPPER!sideband!due!to!the!adjacent!station,!set!the!
Sync/NORMAL!switch!to!the!LOWER!setting!to!isolate!the!LOWER!sideband!and!$H).(%)!the!
UPPER!sideband!(with!interference)!from!the!signal!so!*+70!)1$!7*3$.G!*.!J"EG!&,!.$%$&F$-.!
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AM+SENS+(AM+Sensitivity)+Switch+
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As!you!listen!to!MW!(MediumQWave)!and!Radio!NIKKEI!–!and!under!normal!conditions!Q!
keep!the!AM!SENS!switch!on!the!HIGH!(high!sensitivity)!setting.!!When!you!are!listening!to!
very!strong!radio!stations,!nearby!stations,!or!are!getting!interference,!move!the!AM!SENS!
switch!to!the!LOW!setting.!
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