Good.
A second skeptic showed up.
Actually it's strange that so few skeptics are showing while the rest chooses to keep hiding behind the bushes. Don't be afraid, this is no booby trap.
Well, I momentarily took EleinE from ignore and despite his answer sounded a little confusing, he also appears to agree with Dr. Rudy in that keypads in cell phones do produce tones and thus frequencies. How wonderful our technologic world is.
Actually the 'touch tone' evolved to modern DTMF or dual tone multi frequencies. Well it even features frequencies in the name, doesn't it?
OK.
Well, I claim (one more?!) that if a Rangertell Examiner user replaces his calculator by a cell phone and presses the keypads correspondent to THE SAME code he has for gold in his calculator, the device will swing to a gold sample in the same manner as it did when the calculator was ontop. Only the cellphone is just a little heavier, of course. Well, unless you still have the analogic model. I hope not.
So, to corroborate my claim and to replicate what I have already done, I kindly ask some examiner users here, particularlly Art and Fenixdigger, for instance if they would mind in making this test.
Simply reach the examiner and carefully remove the calculator. You can gently insert a plastic comb under the calculator and lift it. Normally the double stick tape will remain intact, but in case it does not, just buy some tape and replace it.
Then put your cell phone ontop of the circuit box and wrap a rubber band around it to keept it tight. Now enter the code for gold pressing the keypads. But don't hit the send button as you are not going to call anyone!

Just leave the code in the display as you normally do with the calculator.
Place your favorite gold sample around and go for a test drive. The antenna should easily swing to the gold sample.
Post here if I'm right or not.
Did you notice any difference?
When you have finished this test and comeback, we will have a lot of fun with the skeptics for sure and a good talking show too.