Re: info on metal detectors
I've used them. I'm actually considering buying one to go on my boat in the future too :)
There are a few kinds. The cheap ones and the better, more expensive ones. I haven't researched this stuff in a few years though, so I can't give you much information anymore.
I can tell you how they work though... basically they are a radio system with an antenna. The coil acts as an antenna. Normally there is a radio device - actually an oscillator which generates a signal and along in concert with the antennas transmits a signal.
A second oscillator normally is used to "beat" with the first - basically a beat frequency oscillator.
When you "null" the device - tune the two signals to the SAME frequency. When a lump of metal interferes with the radio signal you get a whistling sound as the matched frequencies are untuned.
(this is also the exact principle used to pick up morse code)
Modern devices have meters which show signal strength and might be "calibrated" by "metal type", and you might see lights that indicate a 'hit" and various other things.
The more expensive, the more bells and whistles. And the harder they are to figure out. lol
A SIMPLE metal detector is much cheaper and will find many kinds of metals a few inches below the surface. More expensive models have more powerful signals and can penetrate much deeper down.
That's best I can tell you from personal (and OLD) experience. I have not messed with a metal detector now in probably 25 years.
Re: info on metal detectors
Thats the third time I tried to post that message this morning.
Re: info on metal detectors
What he wants to do, I am certain, is do some "treasure hunting". It's a hobby in the US where people walking along beaches or they visit areas where there used to be houses or other population and search for coins, keys, rings and the like.
So bigger isn't necessarily better. He's looking for things that might be made of gold or silver as opposed to massive copper wires. lol
Re: info on metal detectors
http://www.amazon.com/b?ie=UTF8&node=554036
He's probably looking along the lines of something like this.
Re: info on metal detectors
Old battle fields.
Be careful there, you might dig up a live bomb. LOL
Re: info on metal detectors
Exactly in the price range I am looking to buy. There were a lot of smaller raids in this area back in civil war days. One story that has persisted since I was a little sapling was that of a a Union pay train robbed by Gen Shelby's raiders. It was supposedly buried along with a cache of Union rifles. My great Aunt Vania used to tell my Dad that under one foot was gold, the other silver. In the 60"s Dad was hired to excavate several area's in the county looking for the cache. It was never found. It may not even be true, like I said exersize may be the true prize.
Re: info on metal detectors
Sounds like a lot of fun Luke. You will have to keep us posted on how this goes. Pictures are good! :)
Re: info on metal detectors
Indeed, keep us posted!
Also, I think as owner of this fine site, a modest 25% finders fee on any valuable items isn't out of the question. :D
Re: info on metal detectors
Quote:
Originally Posted by
Ryan Ruck
Indeed, keep us posted!
Also, I think as owner of this fine site, a modest 25% finders fee on any valuable items isn't out of the question. :D
LOL
Good one Ryan... And "Send us your hot models" was a good one too.
/snicker
No Mercenary behavior there at ALL.
Re: info on metal detectors
What can I say, I am a rather sophisticated person - women and money! :)
Re: info on metal detectors
Quote:
Originally Posted by
Ryan Ruck
What can I say, I am a rather sophisticated person - women and money! :)
heheheheheheha you are cracking me up man.