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Turning the tuning knob fully right enables the same response from the Examiner for left-handed users.

We are now almost certain why Sam Skeptic has been so adamant that LRLs do not work. Being left-handed he needs a special fitting (sic). We can still only offer him an Examiner on trial now we understand the compounded nature of his problem. LRLs generally would not have a polarity reversal built in. Even if provided it would be erratic and lead one to believe in the wrist or ideomotor response alone. He will need though to use the booster we provide free with each Examiner to overcome any reverse exertion (see below) and to effect a sharper response anyway. All users whether left or right-handed will find the booster assists greatly. We wonder whether Carl the report-writer too is left-handed (as well as md fraught) since null response is very rare with the Examiner in normal healthy adults.In fact there is a photo of Carl trying the Examiner in a vice on a forum indicating he IS left-handed. He alone could not use the Goldscrew, the pre-requisite. The offer of the latest Examiner is also open to him.

If you hold the Examiner in your right hand and manually set to the right side of your body and count the paces between antenna swing to swing as you walk then do the same setting to the left side of your body and count the paces between swings, you will get say 4 with the right and 11 with the left. (The settiing is correct when the antenna swings back in the first step you take out with the dial fully left or wherever you get the best usual response.)

Doing the same with the Examiner in the left hand will give about 11/11. Repeating these two experiments should give you the same, if you think you cannot set with any degree of accuracy. The factor could be about 11 to 4 in favor of the right side of your body and hand. With the left hand and no dial tune to the right you would miss 9 out of 10 targets and not have a strong enough lock when pinpointing using the left hand. If you use your right hand, even though you are generally left-handed you will still need a fine tuning.

The left side of the body and thus hand is much weaker electromagnetically than the right. You can also prove this by holding the electrodes of a multimeter and measuring the millivolts holding the electrodes one way then the other.There is a marked difference as you have reversed the polarities and can now see the flow of electricity in millivolts through both sides of the body.

Left: The fitness bicycle in the triangular support on the back wheel (see above right). Examiner can be seen in foreground near front wheel.

In one experiment after only 30 seconds back-pedalling on the machine there was no response from the Examiner in any way for some hours. When the signal booster was added to the Examiner (equivalent to in the pocket) the antenna swung in the normal way to the mine deposit at left half a mile.

If you have problems with response and long range locating the experiment indicates one answer is the reversal of your body aerial due to cycling and any activity that involves backpedalling and pressure on the base of the spine. This can extend to the simple act of walking backwards. It was noted that when the response had disappeared after only 30 seconds backpedalling, relaxation with focus on base of the spine and posterior was required until response returned, some two hours later. Theoretically there would be no response indefinitely or at least until the next day after sleep. If your skeptic friend is a cyclist and appears to get even less than a null reponse this duplicable experiment appears the answer to the null response. It is field reversal. This is not to say anyone who brakes in a certain way or backpedals continually cannot detect for some time later, only that it might pay to conduct a simple experiment. Even light pressure to the end of the 'tail-bone' (coccyx) can freeze your locator dramatically. Even walking backwards or sideways with the Examiner will null the response for a time. Try it!

Even if you don't freewheel backwards as is common, the minute you brake you are denying your body aerial any 'forward movement' and thus detecting capacity. At least two users cannot use LRLs due possibly to this in light of evidence. One is the geotech report writer Carl (who can't get his manufacturers right) and the other a newsgroup skeptic who uses remailers. This could be connected to the problem i.e. RE or remanent eclipsing. In these cases proximity to standard metal detectors even when off for days and at some distance will subject the body aerial to RE and null the response. This is what I mean: http://www.thunting.com/geotech/forums/showthread.php4?p=36977#post36977 This would null an LRL out for hundreds of feet. He may claim to have opened up LRLs and found them not to work but be unaware that the reason is under his nose. In the field unless the md is too close you don't have this still, remanent signal problem.

The Examiner finds the mine deposit to the left moving forward at 3.5 mph but walking backwards at 3.5 mph after the static backpedalling there is no response. The forward response in clip only came about after coarse retuning.

Walking backwards at 3.5 mph, only with R-T signal booster is there a full swing. There was no signal response moving forwards after the moderate exertion without the booster or retuning.

Pls tell us if any part e.g. clip on this site is not playing (ranger@Rangertell.cjb.net)