After reading about the deep sounds of the Etrac I decided to do some testing of my own. It took me about 5 minutes of testing before I can say, I was amazed. The thunking sound was pronounced when you get close to the maximum depth of the Etrac. Heard the thunk sound and looked at the meter and to my amazement a 13-45 appeared on the screen without ever hearing the usual high tone I'm accustomed to.
Switched over to manual sensitivity of 28 and the thunking changed to a more consistent high tone with an occasion thunk in between the usual high tone.
All this got me to thinking of the numerous times in the field when I heard this similar thunking sound and totally ignored it.
Now over the past year I've dug many a good, fairly deep targets down to about 8" not realizing there was something deeper that I've missed.
All this said, a couple days ago I had the opportunity to do target comparisons with a V3i. This machine really intrigues me in a lot of ways. My buddy would find a fairly deep target at 7+ inches and then call me over to check it with the Etrac. At first these target sounded awful to me, the ID numbers were way off from what I would normally dig. At first I thought he had to superior machine until I asked him to turn his off when I checked the target and that made all the difference in sounds and ID numbers. We both learned a lot about our machines that day. Now I have another reason to go back to these old areas and try something new. Run in manual sensitivity, more open screen and listen for the thunking sound instead of the very low volume high tone I was listening for before.
Switched over to manual sensitivity of 28 and the thunking changed to a more consistent high tone with an occasion thunk in between the usual high tone.
All this got me to thinking of the numerous times in the field when I heard this similar thunking sound and totally ignored it.
Now over the past year I've dug many a good, fairly deep targets down to about 8" not realizing there was something deeper that I've missed.
All this said, a couple days ago I had the opportunity to do target comparisons with a V3i. This machine really intrigues me in a lot of ways. My buddy would find a fairly deep target at 7+ inches and then call me over to check it with the Etrac. At first these target sounded awful to me, the ID numbers were way off from what I would normally dig. At first I thought he had to superior machine until I asked him to turn his off when I checked the target and that made all the difference in sounds and ID numbers. We both learned a lot about our machines that day. Now I have another reason to go back to these old areas and try something new. Run in manual sensitivity, more open screen and listen for the thunking sound instead of the very low volume high tone I was listening for before.