My point of view on that,
If you get a very faint signal in AM, for sure you it may disappear by switching to Disc. A good stable setting for AM, in my beach, is sensitivity 4 (excII). A good stable setting in disc. is sensitivity 8.
Since the sensitivity setting react more in Disc. mode than in AM mode, you can not just turn AM to disc. to do the test. You must play with the sensitivity to.
Disc mode with sensitivity 4 is good to find a tire rim at 4'' deep, but not good for small deepies. Test between AM and Disc. have to be made with a good stable setting in each mode.
Has i said, since the sensitivity setting react more in Disc. mode than in AM mode, there is a turn point were one mode will get deeper than the other mode. That point with my excII 10'' standard coil, in my beaches, on wet or dry sand, is around 7,5 sensitivity. If I can run my machine in Disc. mode with a sensitivity higher than 7.5, the Disc. mode will go deeper.. Less than 6.5 i switch to AM.
To do my test, i attach a line to different type of rings, bury them 24'' deep, 36'' apart, with the line out. I pull out each lines 2'' at the time and do all the test (sens, mode, speed, coil control,...) each time, and note them on paper.
Good luck guys in 2010
If you get a very faint signal in AM, for sure you it may disappear by switching to Disc. A good stable setting for AM, in my beach, is sensitivity 4 (excII). A good stable setting in disc. is sensitivity 8.
Since the sensitivity setting react more in Disc. mode than in AM mode, you can not just turn AM to disc. to do the test. You must play with the sensitivity to.
Disc mode with sensitivity 4 is good to find a tire rim at 4'' deep, but not good for small deepies. Test between AM and Disc. have to be made with a good stable setting in each mode.
Has i said, since the sensitivity setting react more in Disc. mode than in AM mode, there is a turn point were one mode will get deeper than the other mode. That point with my excII 10'' standard coil, in my beaches, on wet or dry sand, is around 7,5 sensitivity. If I can run my machine in Disc. mode with a sensitivity higher than 7.5, the Disc. mode will go deeper.. Less than 6.5 i switch to AM.
To do my test, i attach a line to different type of rings, bury them 24'' deep, 36'' apart, with the line out. I pull out each lines 2'' at the time and do all the test (sens, mode, speed, coil control,...) each time, and note them on paper.
Good luck guys in 2010