Excal II Dangerous?

[penzfan]

LMAO!!!

Oh no! I have been sleeping with my Excal next to me!

 

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[OBN]

DDancer
Using a Radio Shack Sound Level Meter?

If you would have watched the vid you would have seen I'm not after measuring the EMI, I was measuring the transmit field of the Coil.. I'm after increasing the transmit field of the Minelab Excalibur, by knowing what the stock transmit field Limits are I can see if the changes I make to the detector are increasing this field. Like adding a AfterBurner...(And if you don't know what a afterburner is it is just something that amps the signal to the coil giving it a larger detecting field)

 

[bigscoop]

If you would have watched the vid you would have seen I'm not after measuring the EMI, I was measuring the transmit field of the Coil.. I'm after increasing the transmit field of the Minelab Excalibur, by knowing what the stock transmit field Limits are I can see if the changes I make to the detector are increasing this field. Like adding a AfterBurner...(And if you don't know what a afterburner is it is just something to add more voltage to the coil giving it a stronger detecting field)

Question, just out of curiosity, and I'm sure you know why I'm asking. But, how much difference do you find from say, one Excal to the next?

 

[OBN]

Have to be honest I have yet to do any extensive testing other then checking a few coils on the Excalibur and the stock White's Dual field.. That video I made for someone that works at Minelabs who asked about the measuring. His question was does the field change as the battery voltage drops, from a full charged battery to one running 11 volts. He felt it does change...I'm not sure ...Yet.
When you turn the detector on, the field is there, at no time does it change with any adjustments you make at the detector. By next fall I will know more, Hunting season started here Monday...

I did do some testing a few years ago on the detecting fields of 5 Excalibur's (Not the Transmit field), 3 blues and 2 greens...In a totally silent room, all were with in a inch of each other....and this was a air test, when you encounter different conditions, the results could be different. But I can say this, My Opinion..Some machines are just hotter then others....

 

[Fitzwilk]

My biggest concern with the Excaliber is if the sharks can hear it from great distances. I was watching Jaws II last night and there was a line about how sharks are attracted to low frequency sounds.

 

[DDancer]

If you would have watched the vid you would have seen I'm not after measuring the EMI, I was measuring the transmit field of the Coil.. I'm after increasing the transmit field of the Minelab Excalibur, by knowing what the stock transmit field Limits are I can see if the changes I make to the detector are increasing this field. Like adding a AfterBurner...(And if you don't know what a afterburner is it is just something that amps the signal to the coil giving it a larger detecting field)

I did watch it.

Ok. Let me put it this way. I'll concede that your using a device to get an idea of the size of the transmit field of your detector. Considering whats being discussed EMF as being dangerous due to output power the inclusion of the video really can be a red herring for discussion. Your demonstration has one good point and one big flaw.

The device, a sound level meter, does demonstrate EMI ; The output of a transmitter interfering with other electronics. The flaw is that it is a Sound Level Meter and not a power meter which would be used to measure EMF and would allow you to figure out how "large" and powerful the field of your transmitter is. Considering the fact that the sound level meter only measures ambient sound the readings are pretty much useless and might lead one to believe there is some scientific credibility to the discussion of the danger of high output power by a metal detector. Makes me pretty incredulous of an already absurd argument put forth by this thread.

On the idea of hotting up your detector~ provided you work on the receiver circuits to account for the additional power and make a lot of allowances for the changes in increased signal on the discrimination circuits and/or balancing circuits it might be feasible to amp it up. I don't know what good it would do but you might be able to pick up your belt buckle or any fillings in your teeth I doubt anyone would be growing extra gills though Hahh