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Originally Posted by Theseus
The adjustment procedure is going to require that we make some tweaks to a small trimmer cap that is said to be very difficult to set to the exact position for good performance. I was told that it must be moved by a "hair at a time" until I find the setting that works, and to be careful once I find that setting because if I lose it, I may not be able to easily find it again. For each "hair movement", I will also need to adjust the sensitivity and antenna position after entering some specific sequences of calculator buttons. Then walk past a target placed on the ground and make observations of what I see happening with the antenna.
Just out of curiosity, was this incredibly complex "tuning" procedure a part of the enclosed instructions (that accompanies all Examiners), or is it something special that was transmitted to you by R-T? 
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Hi Theseus,
This is included in the instructions as a "last resort" in the case you don't see the results expected after following the other instructions. There is nothing complex about it, but it requires looking for a very hard-to-find setting that may take some time for a new user of an Examiner. From what I read, this is only necessary on a few units that show poor performance. Apparently, I have a unit that needs this adjustment.
Best wishes,
J_P