ok I have read all of the faq's. I know you are suppose to turn the sensitivity down to a single digit number go to all metal find a clean spot , ground balance for neutral up and down sound with the coil off the ground 4 inchs. Then take it out of ground balance, set the sensitivity back up to where your going to hunt at and go. This is where it gets confusing , I have a whites xlt and every time you make a sensitivity adjustment with the pag you have to re ground balance the machine . so if you are balancing the xterra in a single digit how can this be a accurate ground balance and you then take the sensitivity up to 18 or 20 and start hunting. seems you would ground balance it at the sensitivity your hunting at so the ground is properly seen and cancelled out. seems doing it in a single digit sensitivity then raising it would just amplify whatever is in the ground and not be a accurate gb. I am using a xterra 50 without auto ground balance like the xterra 70.
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I have a question on why a xterra is ground balanced like it is
- Thread starter mitwes56
- Start date
I was told to turn down the sens while ground balancing by a guy that used the x50. This was the day I bought the machine new and he was showing me the settings. Don't know why either but I have been doing it that way. Far be it from me to argue with success. I'm getting stable operation in some pretty tuff ground and digging some deep relics. I agree though that it doesn't make a lot of sense.
I suggested setting the sensitivity low to begin with so you aren't overdriving the audio. Some folks get chatter confused with the fluctuating GB audio tones. Once you set the proper GB for the site, advance the sensitivity to a point that is just below where the detector chatters when you lift the coil or sweep it over rough terrain. A level of optimum sensitivity is directly related to the mineralization of the soil. In other words, you will be required to run a lower sensitivity in areas with higher degrees of mineralization. And you can typically run with higher levels of sensitivity in sites with lower levels of mineralization. But keep in mind that running with your sensitivity setting too high will cause your detector to be very unstable. As such, if your sensitivity is too high to begin with, you will never get an accurate GB setting and you may find yourself detecting the soil instead of targets. That is why I suggested to lower the Sens., set the GB, then raise the Sens. In the real world, when you go to a new site, you probably don't know what the GB setting will be. So, if you make it a habit to set the sensitivity low (to allow you to properly set the GB), then raise the Sensitivity to a level that is just below a the chatter, you should be able to obtain both a proper GB and a proper Sensitivity, with minimal effort. With that said, if you hunt in areas who's mineralization is relatively constant, you can probably "get by" with keeping the sensitivity at or near the setting you hunt in. It is simply a matter of obtaining the proper GB and being able to differentiate between chatter and tones. If you are able to do that with your X-Terra, ground balance with whatever sensitivity setting you want. HH Randy