Hi All,
I promised an update on the TDI with the 8"x 6" Sadie Nugget Finder Coil.
Firstly I made up a set of weights from .1g up to 1g so as to check out responsiveness under controlled conditions.(see pic)
The recommended Sadie coil is certainly the superior coil over the standard TDI coil and the Coiltec 6" round.
With the settings advised, gain to half, ground balance, flick to Low conductivity, crank gain to full, reduce threshold until just quiet
is certainly the best for results. However in very hot areas have found that increasing the pulse rate to bust above 10 to about 10 1/2
removes hot rock response to a fair degree.
Results with my TDI, anything below .3g cannot be reliabily detected. .4g probable .5g unmissable.
All testing was made with the test weights in heat shrink buried 2cm deep, ground tamped down then left overnight to settle.
Of interest met another detectorist using the Garret ATX I think it is designated and wow was I impressed by this unit.
Except the weight, again felt heavy to me at 3.3kg.
Although only watched it in operation for 10-15 minutes. Easily pulled a bit just below .2g
I am now relocating about 900km for the next 2 months detecting. With the TDI.
In the past 2 months have witnessed one only bit of 1gram located, all other bits ( over 80 ) all less than .2g most around .1g
My TDI..... no gold in two months work every day. 3 weeks with the Sadie coil.
All gold was detected with the 5000 (and saw the Garret pull 1 bit.)
On the completion of this years detecting I have decided to sell the TDI and accessories.
Hire a Garret and try to adjust to the additional weight.
If I can will purchase that Garret as my next affordable detector.
Great finds to all.