Advice, Surveillance Interference

[RONMETZGER]

Hello all, I received permission to coin hunt around an old estate built in 1840-1850, and it is surrounded by live wire security fences among other surveillance devices. I started hunting in coin search and deep silver and I was chirping on almost every swing. I was receiving hits that were reading VDI +83 and then on the next swing it would read iron and sometimes I would lose the hit. The ground did have many golf ball size rocks, would that give me false readings? After an hour or so I started detecting around an old elm tree and was able to pull a 1919 Wheatie. I feel like I should be finding much more but I am sure I'm not using the correct settings. Any advice would be greatly appreciated. Ron in Henrietta NY

 

[Larry (IL)]

Look for previous posts about EMI or better yet, use the SEARCH feature for EMI. Here are a couple of ideas. One, look for the quietest frequency offset:

How to find the quietest frequency offset.

Press ZOOM-UP to show/expand the Live Control Bar.
Scroll over to Transmit Frequency-Offset
Pull the trigger to get into Pinpoint mode
Go through the offsets and look for the setting that gives the least pinpoint noise
Press ZOOM-DOWN to hide/minimize the Live Control Bar when done


Try the single frequencies and see if one works better than others, try reducing the gain and sensitivity.

 

[Neil in West Jersey]

I recently had a similar experience. Try raising up the hot rock adjustment a few notches. You may also want to raise up the filter a notch (or two). See if this helps.

 

[TheMarshall]

Hello all, I received permission to coin hunt around an old estate built in 1840-1850, and it is surrounded by live wire security fences among other surveillance devices. I started hunting in coin search and deep silver and I was chirping on almost every swing. I was receiving hits that were reading VDI +83 and then on the next swing it would read iron and sometimes I would lose the hit. The ground did have many golf ball size rocks, would that give me false readings? After an hour or so I started detecting around an old elm tree and was able to pull a 1919 Wheatie. I feel like I should be finding much more but I am sure I'm not using the correct settings. Any advice would be greatly appreciated. Ron in Henrietta NY

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Hi there Ron. Your description of the site certainly poses problems for any detector and detectorist, regardless of their experience.

First, can you collect a couple of those