Hi All. I'm writing to find out how I could make sure that I'm not passing up good targets when the quattro nulls out when it passes over anything that you have discriminated out? I know the obvious answer would be to just use the all-metal mode. But if I use all-metal mode, and say I get a target that reads -10 or -9, and it gives me that solid 2-way signal for it, how would I determine if it's worth digging? What I mean by this is, I know that any negative readings are usually going to be of some higher iron content. But I have heard that iron can mask good targets especially if the piece of iron is right over a good target. So I guess what I'm saying is if I decide to use either coin/jewelry mode with iron discriminated out, or all-metal mode, what should I look for and listen for to determine if I'm passing up a good target? I also had another question on the use of pinpointing to determine if there's anything there for those good one-way signals. I've read on the forum how people will switch the quattro to pinpoint mode, if they get a good one-way signal just to determine if there was anything there in the first place? Thank's for any suggestions or advice. HH. Sincerely, Randy
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Use of discrimination and nulling of targets
- Thread starter yogaguy
- Start date
Angela (Australia)
New member
Hi Randy,
If you are running in all metal mode with no discrimination, you will be listening to the ferrous audio sounds. When detecting you go by the sound, whether it is high or low pitch, consistant or not. I personally like the ferrous rather than conductive tones, because I work in very trashy ground, on old goldfields. You can always tell a ferrous sound by it's low tone, and something workwhile to dig will generally have a slightly higher pitch. I don't use any discrimination. Sometimes the sounds can be overwhelming, so by dropping the sensitivity down a little, until the machine is stable, should help. Do you noise cancel regually? The mode you run in is also related to the mood you're in. True! Therefore, if you're not in the mood to run in All metal mode, why not work in relic mode. It also runs on ferrous sounds. At least this way you get a break, instead of banging the detector against a tree! When you're in the mood again, go back to all metal mode, and in time you'll become more tolerant to all the different sounds. As far as the nulling goes, I don't have to deal with that as long as I've got no discrimination. But it all comes back to what you can personally tolerate. The ground here may also be different to the ground you are working in, so what your Quattro is telling you may differ too. The best advice is: build the test garden, to practice on, using targets you are likely to come across, depending on where you detect. Dig it if you're not sure!
Hope I've helped! Cheers Angela
If you are running in all metal mode with no discrimination, you will be listening to the ferrous audio sounds. When detecting you go by the sound, whether it is high or low pitch, consistant or not. I personally like the ferrous rather than conductive tones, because I work in very trashy ground, on old goldfields. You can always tell a ferrous sound by it's low tone, and something workwhile to dig will generally have a slightly higher pitch. I don't use any discrimination. Sometimes the sounds can be overwhelming, so by dropping the sensitivity down a little, until the machine is stable, should help. Do you noise cancel regually? The mode you run in is also related to the mood you're in. True! Therefore, if you're not in the mood to run in All metal mode, why not work in relic mode. It also runs on ferrous sounds. At least this way you get a break, instead of banging the detector against a tree! When you're in the mood again, go back to all metal mode, and in time you'll become more tolerant to all the different sounds. As far as the nulling goes, I don't have to deal with that as long as I've got no discrimination. But it all comes back to what you can personally tolerate. The ground here may also be different to the ground you are working in, so what your Quattro is telling you may differ too. The best advice is: build the test garden, to practice on, using targets you are likely to come across, depending on where you detect. Dig it if you're not sure!
Hope I've helped! Cheers Angela