Atmospherics

[Roscoe]

I just wanted to add a bit more to this thread as i got disturbed and posted before i could finish. One thing that may be over looked in regards to EMI interference is the wind. I think we all have noticed that our detectors become more unstable as the sun rises, but the wind generally increases as the morning progresses as well. The wind is a good vehicle for carrying lots of EMI.

The thing to know is how to diagnose or differentiate your metal detectors erratic or unstable behavior when these conditions effect the smooth operation of your detector. I find that a lot of new comers to detecting do not understand whats going on with their detector and get frustrated, because they cannot differentiate the difference between ground effects and Atmospherics.

SCROUNGER, There is nothing like detecting at night under a full moon. Its calm, the grounds cool, moist and those signals just boom in, just watch for big holes.

 

[Guest]

Night detecting is cool if your camping out.

Leave the diggings close by to you camp
For night detecting.

Your eyes adjust and you can always wear
A baseball cap with led lights. Its amazing
How quiet and peaceful it can get.

 

[user 4485]

I just wanted to add a bit more to this thread as i got disturbed and posted before i could finish. One thing that may be over looked in regards to EMI interference is the wind. I think we all have noticed that our detectors become more unstable as the sun rises, but the wind generally increases as the morning progresses as well. The wind is a good vehicle for carrying lots of EMI.

I had overlooked wind also but shouldn't have - it (or the EMI on it) upsets my SDC no end in some spots.

What does the saline content mean then mbasko if i'm using the 2300 in saltwater? Or am i way course asking that? Or is that why they have the 'salt' setting on the 2300's dial for?

The salt setting/s on the SDC & others like the GPX's are there to combat high salinity ground

Salt mode: Suitable for salt saturated mineralized soil conditions and is ideal for detecting on salt lakes and beaches.

I can't answer your question on saltwater or what settings you should use? I haven't detected in or near saltwater with my SDC & I'm unlikely to do so.

 

[SCROUNGER]

Think i just wiped off a reply i thought i'd sent.
Guts of it was that you two have convinced me to give night detecting a go. The other is that the wind is just about always calmer in the morning and evenings, didn't even think about that. Thanks all for replying, learning something new with every post, much appreciated.

 

[Guest]

Just be careful where you detect at night.

There could be hidden shafts. I only detect at night
When coin hunting just to avoid people.

Good luck with it.

 

[SCROUNGER]

Thanks mate. Stick to the surfaced areas i reckon until i know what i'm doing.

 

[Heatho]

Salt mode works well on beaches and in salt water, I would not go much deeper that half the botton coil shaft into salt water though.Salt water and electrocs don't mix well.

Anyone noticed more interferance recently when the Aurora Australis fired up due to the solar flare??

I think wind can generate quite a bit of difference charge (static), in the Summer around midday in wind seems to be the very worst conditions, I think the coil heating up can play havoc sometimes too. Just my observations.

 

[SCROUNGER]

Thanks heatho, not intending to do any salt, although my wife might hit the beaches sometime in the future. From my short experience to date, the middle of the day in hotter, windy weather seems to through everything a little wobbly. But still very early on for me so happy to put in time at stage of day to try and understand what's happening.