I posted this on the other forum under "Sum of Null Discriminatiion" so you know and don't bother with both long draw out explanations.
When I talk about capacitor on the input to the receiver I am not talking about blocking DC but a low or high pass filter. Most detectors have filters for this purpose directly at the input which is why we call detector as two, three, four filter machine. The coil and the capacitor is a mechanical filter and now we also see digital filters. An interesting feature of the Explorer is the coil is directly connected to the preamplifiers. Power that would be consumed by the filter is eliminated and the receiver coil is more sensitive to weaker signals. The filters in the Explorer are after the signals have been preamplifier and demodulated.
Serial and parallel in reference to targets is defined by how the targets enter the electromagnetic field of the search head. An example of serial could be if we place a dime and quarter in a straight line then sweep the coil over the two coins then they are in series. If we place the dime and quarter side by side and sweep the coil over the two coins they are parallel. Since the detection field is oval we have target entering the detector
When I talk about capacitor on the input to the receiver I am not talking about blocking DC but a low or high pass filter. Most detectors have filters for this purpose directly at the input which is why we call detector as two, three, four filter machine. The coil and the capacitor is a mechanical filter and now we also see digital filters. An interesting feature of the Explorer is the coil is directly connected to the preamplifiers. Power that would be consumed by the filter is eliminated and the receiver coil is more sensitive to weaker signals. The filters in the Explorer are after the signals have been preamplifier and demodulated.
Serial and parallel in reference to targets is defined by how the targets enter the electromagnetic field of the search head. An example of serial could be if we place a dime and quarter in a straight line then sweep the coil over the two coins then they are in series. If we place the dime and quarter side by side and sweep the coil over the two coins they are parallel. Since the detection field is oval we have target entering the detector