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<blockquote data-quote="Reg" data-source="post: 109499" data-attributes="member: 3659"><p>Roscoe,</p><p></p><p>Scrubbing isn't the best way in really bad ground. Why? Well, i mentioned in another post, the coil windings generate a very strong field and when that field intersects a hotrock, bingo, bad signal.</p><p></p><p>What happens in most cases is a signal is generated that goes positive and then negative. This is the result of the signal going through something called a high pass filter. Normally, the special blanking ckt shuts off the negative portion so it is never heard. If the trigger signal is not sufficient, then the blanking ckt doesn't turn on. </p><p></p><p>My mod should increase the trigger signal thus making the blanking work better. At least, I hope it does. </p><p></p><p>Reg</p></blockquote><p></p>
[QUOTE="Reg, post: 109499, member: 3659"] Roscoe, Scrubbing isn't the best way in really bad ground. Why? Well, i mentioned in another post, the coil windings generate a very strong field and when that field intersects a hotrock, bingo, bad signal. What happens in most cases is a signal is generated that goes positive and then negative. This is the result of the signal going through something called a high pass filter. Normally, the special blanking ckt shuts off the negative portion so it is never heard. If the trigger signal is not sufficient, then the blanking ckt doesn't turn on. My mod should increase the trigger signal thus making the blanking work better. At least, I hope it does. Reg [/QUOTE]
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