Heading out the door with the Omega

[woodchiphustler]

Gonna play in the iron today. More info later.

 

[Monte]

n/t

 

[MickTwin]

Ha! Got it Monte! How did ya do wood chip?

 

[Elton]

n/t

 

[woodchiphustler]

The test was to see how the stock concentric handled not only the iron targets,the red clay, and hot rocks. Like most detectors with concentric coils it struggled. Will make another pass using the dd coil when it arrives. Results will improve. Something of interest was the finds included a number of old round iron saddle rings and modern iron washers. Loves round targets for sure.

 

[Big Boys Hobbies]

Good report!. I love the DD on mine!

 

[Monte]

The test was to see how the stock concentric handled not only the iron targets,the red clay, and hot rocks. Like most detectors with concentric coils it struggled. ... Loves round targets for sure.

The comment is just to ask in what way it struggled? I leave the 9

 

[woodchiphustler]

False high tone allot on the cold and hot rocks mixed in with the powdered iron soil and square nails.GB high 80's, mid sweep speed in short sweeps. This is a bad place that only a GB pulse detector can handle. The detector preformed better in all metal but the ground was noisy either side of plus or minus ground grab with manual override. Sensitivity 60% FEo off the chart.

 

[Monte]

False high tone allot on the cold and hot rocks mixed in with the powdered iron soil and square nails.GB high 80's, mid sweep speed in short sweeps.

If you've got high iron ground and mixed rock where the GB called for is in the high 80's, then it is a challenge, to be sure.

In Portland, Oregon, right within the city limits, in an extinct (I hope) volcano. There are a few spots where I can hunt in amongst the evergreens in some fairly open ground and have a Ground Phase read-out in the 54 to 58 range and either NO Fe3O4 bars or maybe just one. However, the ground around there and within maybe 3 to 10 steps might call for a re-balance as the Ground Balance setting is up in the 78 to 83 range and it will display 3 or more bars, easily. I can search off in one direction and go only a few more feet an there are shallow rocks that call for a re-balance because the Ground Phase required is 85 to 86.

Hot Rocks, the generally used term that can relate to both hot and cold specimens, can cause a problem mainly if the GB is set too negative as that will cause falsing in the Disc. mode, especially. It can be errant to be too positive or too negative, but when I get into a 'hot rock' area where the scattered rocks are more more mineralized, so to speak, from the surrounding ground matrix, I just adjust the GB to the specific hot rocks. Thus, I am set positive for the ground, just right for the problem rocks, and good to go in the Disc. mode shortly.

This is a bad place that only a GB pulse detector can handle. The detector preformed better in all metal but the ground was noisy either side of plus or minus ground grab with manual override. Sensitivity 60% FEo off the chart.

When the ground conditions are very severe it might call for the lower Sensitivity level setting, and balancing the detector can be a bit touchy. This is very true with a coarse-tune design. I like the Gamma and Omega for their 1000-step GB capability so you just have to be cautious to quickly tap the + or - manual keys to very slowly walk the GB setting up or down, very minutely. Easy? No, not in bad ground conditions, but it's doable.

Also, when conditions are bad, I will hunt in the motion Disc. mode, usually using a minimum Disc. level setting, making sure the GB is done before hunting. All Metal mode is great for many applications and I do use it from time-to-time, but there can be challenges. Also, the search coil used can cause the GB to be easier or more difficult so use the best coil for the task. I worked a site yesterday during the sunny and warm spell where the ground gave 4 Fe3O4 bars and balanced at about 81 to 82. It was very densely backed small rocky ground. I ended up, at that site, using the 8" concentric coil rather than the elliptical 10" or 11"DD because, there, at that site, it balanced much better. I did probably half my hunting in the All Metal mode at that site, too.

Monte