<STRONG>"The LOBO SuperTraq's procedure is very simple and takes only a few seconds to do."</STRONG>... And, might I ask, which MODE do you do the ground balaning in? All Metal, of course.
<STRONG>"It should be done each time you use the detector, no matter which mode of operation you plan to use."</STRONG>... Why? Because even if you are HUNTING in the Disc. mode, you want to be able to have good performance when you go into the All Metal PINPOINT mode, and that means the All Metal mode should be ground balanced.
<STRONG>"The automatic tracking is disabled when the detector is used in the discriminate mode."</STRONG>.... That is correct. You Ground Balance by going into the All Metal mode and <EM>MANUALLY MANIPULATE</EM> the detector's coil up and down (pump it) or sweep it side-to-side to allow it to autotrack and establish the starting GB, for that mode. It HAS to be for that mode because... <EM><STRONG><FONT COLOR="#ff0000">"The automatic tracking is disabled when the detector is used in the discriminate mode."</FONT></STRONG></EM>
<STRONG>"I think of "Preset" as meaning it is in the circuitry and I cannot change,influence, or control it in any way."</STRONG>.... Quite correct, and that IS the case with the Lobo SuperTRAQ.
<STRONG>"Here we are being told to do the ground balance even if using the Disc. mode, but the machine will not adjust or auto track. Bottom line, we have to manual ground balance....................first."</STRONG>... Right, and you do that in the ALL METAL mode for the reasons I stated above.
Trust me, this is an old, old topic. There is a fellow down on some island off of Florida who did a modification to his LST and added a manual GB knob just for the Discriminate mode.
I had a Lobo ST I bought brand new and it falsed miserable at the minimum doscriminate setting. What did it false and response when the coil was lifted away from the gropund or swept over a hole? because the GB was too negative. I was going on vacation to AZ at the time and planned on some nugget hunting so I stopped at the factory. <EM>I</EM> knew the problem and <EM>they</EM> knew the problem. Quickly, the service depatrtment took care of the <EM>INTERNAL</EM> GB TRIMMER ADJUSTMENTS and I was set to go enjoy the LST.
GB in Disc. mode = factory preset internally
GB in All Metal = handled by the Autotracking circuitry
This is also why folks might sometimes get an assortment of coils and some work just fine in the All Metal mode (thank to the autotracking) but have to send the SuperTRAQ and coils to the factory for calibration. That way the GB for the Disc. mode is set to function with all the coils.
<EM><STRONG>Monte