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Poor Man’s CRT demagnetizer

Design Tips

Poor Man’s CRT demagnetizer
Particularly with extreme fieldstrength variations (due to fading etc.), an AGC guarantees fewer hiccups in the DRM (software) decoding process. The DRT1 receiver from Sat Schneider already has an input for gain control. Using the VGC_IN terminal on the receiver, the gain may be controlled with a slope of 25 dB/V.
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