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 Post subject: Re: Sony ICF-2010 Sync Detection Questions
PostPosted: Feb Sun 04, 2018 6:08 am 
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Joined: Aug Fri 29, 2014 6:17 pm
Posts: 2447
The big selling point was the fact that no one else offered synch in a portable, ssb selectable synch at that. It also had fairly decent filter bandwidths. The audio I found to be wooly no matter what the bandwidth, but the synch did help provide for better listening during fades, and if one sideband of a synched signal was getting interference, you could use the other.


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 Post subject: Re: Sony ICF-2010 Sync Detection Questions
PostPosted: Feb Sat 24, 2018 6:17 pm 
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Joined: Feb Fri 26, 2016 3:08 am
Posts: 23
Location: Richmond, KY
I have the Sony 2010 and other radios with the Sync. The Sony, so far, is the best (although the Sat 800 is very close). What does the sync do? If you have interference for a neighboring station, it usually affects one side-band of the AM signal more than the other. You can "clean up" the offending signal by using notches, pass-band tuning, or using SSB (is the interference from stations at lower frequencies? Use USB etc).

All these require steady hand, a stable receiver and very fine steps in SSB to get good sound ( (and passband equipped radio are not cheap).

With the Sony is a cinch, and you can receive a station with almost full audio and no donald duck sounding voices. Sync up or low depending where the interference is (You need a selectable sideband sync. The Drake R8A does not have it, the R*B and late SW8 do).

When selective fading occurs (fluttering affecting certain frequencies more than others in the sideband of the AM signal) the sync detector helps in reducing it. If the signal is strong and stable, the sync can actually degrade the recovered audio.
So, is it a gimmick? If it works well (and the Sony's does), NO! In the cheap portable arriving from China these days? Meh...
My two cents, and worth every penny. :)
Marco


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