I need some help on this subject.

[Mel Parker]

Some time ago some one made an amplifier that boosted the transmit power to the coil to increase depth of his Sovereign detector. He offered the device for sale and it seems like the cost was around $340. Does any one recal who this was or have a link to his web site? Thanks for your help.

 

[Mel Parker]

n/t

 

[Ron from Michigan]

Mel,glad you found your information.Good Luck Ron

 

[dewcon4414]

Mel..... is it anything that can be used on an Xcal? Whats the thought behind it and would boosting the power to the coil just over power the receive coil unlike a send and receive since both coils are on at the same time? You are talking about increasing power to the coil like on some of the bigger MLs not just amping after it? Whats do we have right now a limiter which allows a constant battery flow? Will it be a non issue if the processor cant filter the extra noise..... or is there a way to go from say a 2 to a 4 filter?

Dew

 

[Mel Parker]

http://www.findmall.com/read.php?21,1365516,page=3

 

[OldBeechnut]

[size=large]Dew n Mel..think about this..Something I am working on also besides a Amp.... What about running two excals one as a sending unit only with no receiving, then a second unit as your main machine..(sending and receiving)....even an excal at 3 to 4 feet away targets will be Lite up more with twice the signal going into the ground. There is a interference issue that needs to be worked out but both machines are sending out the same signals, just one is used to pick them up... it works...great on small chains n gold that normally would be missed... have some video coming in the next month.[/size]

 

[dewcon4414]

Would a small coil as the sending device reduce some o that Joe? Also doesnt that expand the magnetic field meaning anything metal as well as u will have an effect.

Dew

 

[Mel Parker]

n/t

 

[OldBeechnut]

Also doesnt that expand the magnetic field meaning anything metal as well as u will have an effect.

[size=medium]Yes Sir, I have locations if you walked into them and hunted with any detector you would walk thru and say there is nothing here, several of the sites I can randomly dig down maybe 18 inch's, there is a chance there will be good targets in the hole, the walls, and the stacks of sand I have shoveled off to the side. Why not a PI, a few have bad EMI and I have tried the DF and Infinium, just to much interference and remember here the water is fresh/saltwater and the Excalibur in PP rocks. These sites are before pulltabs and have very limited amount of trash further from the shore. Nothing like the fresh drop beach's, here targets are deep and a good percentage are beyond the range of any water machines. So if I could dredge them it would be great, but with them being in populated areas it just not going to happen. So my goal is to dig deep targets only on these old beach's and I feel the payoff will be more treasure. Another thing is gold, I have dug at these sites and found silver then when I check the piles there will be a gold ring... beyond the range of the detector, and I am guessing but the most the Excalibur can reach on a ring here is in the two scoop range, my goal is to find them in the three scoop range with the Excalibur. And you are correct when you put out a stronger larger field, everything gets a dose....which means these tools can only be used at some beach's others would be useless. I have cut back on the mods to almost nothing so I can get more into the field and do my own testing[/size]

 

[Mel Parker]

n/t

 

[stoker_x1]

I don't post very much, but have enjoyed reading this forum for years. Thought I might respond to this subject since Joe and Mel are talking about me in a nice way. These two guys are good guys and smart. When you need help on your projects, they are the right people to call.

This subject is complicated because there are so many processes which must work together to have a favorable outcome. What JBN said is true. An object that can’t be detected with the presence of one coil can be detected with two since the energy hitting the target would be doubled. The goal should not be to find a means of using two coils in any configuration, considering the effect they would have on each other. The goal would be to increase the field strength of the secondary target (metal in the ground) by increasing the strength of the primary field of the coil on the detector. However, looking at the processes which are active when swinging the coil, one would include specific components molded inside the coil hosing and they would have minimum and maximum ratings which if exceeded could damage them or they might never function properly. Changing the voltage feed could affect frequency and timing which could cause the detector to loose its mind. If the coil has an Op Amp mounted inside the coil and there are Op Amps used on the circuit board inside the electronic housing, the interactive phase of the circuit could be disrupted and render the results useless.

Amplifying field strength is a straight forward idea that can be easily accomplished when designing from scratch. This means building a new coil which can use more power and limiting the return voltage to acceptable levels so as not to damage the circuit board of the detector. This method would be out of reach for most detector people, but done right would allow the user to control voltage and field strength and that would produce many advantages at differing locations.

I plan to do some testing over the next few weeks which will be designed to use existing coils built now days. I hope to discover a possible means to use EMF concepts to boost field strength without changing frequency. I have built a variety of devices in years past that worked nicely, but frequency was not involved. Will keep you posted and would appreciate any thoughts you might have that could help.

Clyde

 

[dewcon4414]

All that said..... seems a send and receive system would be better because of the receive coil being on at the same time as the send. Working on a system to ID (disc) these various responses also seems possible and eaiser with a PI. PPing gets to be a bit of a bear Joe the more tweaking you can do with the target. how would all that increased power affect size/density of target..... would we get a chain?

Dew

 

[Tony]

I purchased one of these amps a few years ago and there was a definite increase in depth on my Sovereign GT.

The amp has developed a fault and the maker (Shaun) refused to help me with repairing the unit.
Would not answer a single email I sent him. I was really angry because the unit is very high quality.
I think the fault is very minor but I have no idea how to fix it.

I don't have the GT anymore so if anyone wants to buy this AMP then make me an offer....it did cost $350 and the fault could be a $1 diode.

When it was working then it was amazing...

Tony.

 

[OldBeechnut]

Dew.....would we get a chain


I will keep you informed, cold weather is coming...

The goal would be to increase the field strength of the secondary target (metal in the ground) by increasing the strength of the primary field of the coil on the detector

We have two issues, problem with two machines we have interference , with one machine and a Amped coil we have the problem of saltwater / minerals . I do think two machines is the way to go and experiment with containing the interference. And this is from past experience with Shaun's amp on the sovereign....at the Atlantic ocean several years ago. Did not work in Saltwater, falsies like crazy.

 

[dewcon4414]

But the EMI went away as soon as u dunked it right? I guess like was mentioned ....the coin was no longer tuned to the machine. Sounds like u need more toys to adjust the two..... never ending Joe but dang I like your interest. U three lived close I could see something interesting being done to those pods.

Dew