But will the wide angle see the wreck 30-40ft away instead of my current
"sighting" only 9' from center of the cone 50ft down?
LD


"BruceM" wrote in message
...
If you wore shoes that were 10ft square, would you feel a small hole?
The first thing the "ping" hits returns an echo.
If you have a 6ft "hit" on the bottom & you go over a 7ft hole you will
get
an echo from the bottom of the hole.
If you go over a 4ft hole you won't see it.
That's my understanding anyway.
BruceM