KOB
You wrote “ Another thing I think Rick said was this won't work good IN the water. So what the heck is that about ?
If you are talking about the iron tone/mute ID function, as far as I know - water depth has nothing to do with it.
It may be you are thinking about the fact that all PI detectors will “see” the volume of salt water as it is increased by depth. Some folks her have therefore concluded that there is no way the AQ can be run at a shorter pulse delay in water (even shallow) than the 10mS or so that are the limit for a well tuned TDI. That is not the case. The effect of the salt water volume is to increase the noise level of the detector. The exact design of the system - coil, detector and all - have a very large influence on the performance, Not all PI’s are alike.
You wrote “ Another thing I think Rick said was this won't work good IN the water. So what the heck is that about ?
If you are talking about the iron tone/mute ID function, as far as I know - water depth has nothing to do with it.
It may be you are thinking about the fact that all PI detectors will “see” the volume of salt water as it is increased by depth. Some folks her have therefore concluded that there is no way the AQ can be run at a shorter pulse delay in water (even shallow) than the 10mS or so that are the limit for a well tuned TDI. That is not the case. The effect of the salt water volume is to increase the noise level of the detector. The exact design of the system - coil, detector and all - have a very large influence on the performance, Not all PI’s are alike.