LukeJMG1986 Posted June 17, 2020 Share Posted June 17, 2020 Hey folks, I noticed today, while doing a 7 hour river hunt (Fresh Water), in Northern California (Wine Country), that almost all my targets would give an iron grunt as the coil passed off the target. I thought perhaps there was small iron nearby the target, so I replaced the target (100 yen coin) in a clean spot and swept back and forth, receiving a small grunt here and there. I had been hunting in Beach 1 All Metal Mode for the day. I did this so that I could check to see if I had a bear cap, or pull tab by swinging over then pulling off the target to reveal the Iron (Something I read in "The Equinox Serious, by Andy Sabisch) I did notice that discriminating -9 - 0 It obviously did away with the grunts, but my question is, what would cause that? My sensitivity ranged for 10-20. The Iron Bias was set to 0, and also 4 (with similar results) I noise canceled frequently, and did a ground balance every now and then as well. My recovery delay was 4, or 5. In case any of these settings would cause it. I'm very much a novice, with less then a year experience, and have never hunted extensively in water. I know alot of you guys know your stuff, so I figured I'd see what kind of answers I could get here. Hopefully I gave all the pertinent information. I appreciate your answers, and happy hunting! ~ Luke Link to comment Share on other sites More sharing options...
Sinclair Posted June 17, 2020 Share Posted June 17, 2020 I cant't speak for rivers, but fresh water lakes in my area behave exactly the same. After some investigation, I found the stones / sand to be surprisingly heavy mineralized. Some of the smaller stones even stick to a strong mangnet(!). My salt water beaches behave completely different. Perhaps you can throw a strong magnet in there. If it attracts small stones and particles, that will perhaps be your problem. 3 Link to comment Share on other sites More sharing options...
GB_Amateur Posted June 17, 2020 Share Posted June 17, 2020 15 hours ago, LukeJMG1986 said: The Iron Bias was set to 0, and also 4.... Since there are now two Iron Bias scales (independent -- user gets to decide which one) it might help if you told us which you are referring to: FE or F2. I don't water hunt so my replies may not be relevant to what you are experiencing; thus I'll refrain. I will be posting soon what I've been finding by experimentation in the field, playing with the F2 settings. I may wait until I get more testing done, though. IMO it's a very confusing feature. I'll leave it at that. Link to comment Share on other sites More sharing options...
Steve Herschbach Posted June 17, 2020 Share Posted June 17, 2020 A bunch of relevant discussion here 1 1 Link to comment Share on other sites More sharing options...
LukeJMG1986 Posted June 18, 2020 Author Share Posted June 18, 2020 22 hours ago, phrunt said: Is there a reason you're lowering your iron bias from default? Some good reading for you. Hey, I appreciate the input. I lowered the Iron Bias, because I didn't want to run the risk of the Iron Bias masking nearby non ferrous items. I usually go 1 or 2, because I did notice I was digging some nails and rusty metal flakes on zero. I'm a novice, with less then a year under my belt. I may be overthinking it, but I can't stand the thought of going over a good item, because the iron bias is masking it. Frankly, I'm still putting the pieces together from 6 months of reading, and detecting like crazy, so I have alot of info swirling around that I'm not 100% on, as I simply don't have the time under my belt yet. Link to comment Share on other sites More sharing options...
LukeJMG1986 Posted June 18, 2020 Author Share Posted June 18, 2020 13 hours ago, GB_Amateur said: Since there are now two Iron Bias scales (independent -- user gets to decide which one) it might help if you told us which you are referring to: FE or F2. I don't water hunt so my replies may not be relevant to what you are experiencing; thus I'll refrain. I will be posting soon what I've been finding by experimentation in the field, playing with the F2 settings. I may wait until I get more testing done, though. IMO it's a very confusing feature. I'll leave it at that. Hey, thanks for the reply I actually tried both, but I spent the majority of the time in FE. I do keep it pretty low, and a friend actually told me there is a good deal of mineralization here in Northern California, which could be part of what I was experiencing. I resorted to simply digging the target, grunt or not, just to be sure. I would definitely like to know for certain what causes it, so I can better understand, well, everything really. 1 Link to comment Share on other sites More sharing options...
LukeJMG1986 Posted June 18, 2020 Author Share Posted June 18, 2020 On 6/17/2020 at 12:22 AM, Sinclair said: I cant't speak for rivers, but fresh water lakes in my area behave exactly the same. After some investigation, I found the stones / sand to be surprisingly heavy mineralized. Some of the smaller stones even stick to a strong mangnet(!). My salt water beaches behave completely different. Perhaps you can throw a strong magnet in there. If it attracts small stones and particles, that will perhaps be your problem. Mineralisation here is definitely a thing. I have to remember we do deal with alot of it in Sonoma County, CA. I appreciate the feedback. Thank you Link to comment Share on other sites More sharing options...
LukeJMG1986 Posted June 18, 2020 Author Share Posted June 18, 2020 9 hours ago, Steve Herschbach said: A bunch of relevant discussion here Excellent, thanks, I have to start searching on the forum, before posting a thread that may have already been discussed. There is a gold mine of info contained here! Link to comment Share on other sites More sharing options...
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