Morgan both technologies are different and if the XP Deus was multi frequency you might not have
a prospecting mode nor a choice of which frequency setting you wanted to use unless the prospecting
mode changed the machine from multi to single.
Fisher and Whites also make a multi frequency and I think one is being developed in Russia as well.
Generally the lower the frequency the deeper the machine detects without being sensitive to tiny
bits of foil or gold. The higher the frequency then the more sensitive it becomes to small bits of foil
or gold but does not detect as deep.
There is a demo in the video and you can see it as he changes frequencies.
In the old days you would hear people complain and state the multi frequency detectors got deeper.
I think as technology has improved its different today because of the fast processors being used
in such cases as with the G2, Deus and v3i.
A good test would be testing a G2 against another machine developed in the 90's running at the
same frequency to see if they are equal in depth or which one detects deeper.
Not sure how many detectors using a single frequency back in the 90's could ping a silver coin
using a 9" coil at 12" depth.
What I would love to see is an optional controller for the XP Deus that XP users can buy.
The optional controller would be pulse induction with some sort of discrimination & filtering
How amazing would that be? Pulse induction technology in a case the size of an iphone. Even if it
was 3 or 4 times thicker than an iphone it would not matter.
Is it possible? Who knows but time will tell I think..