The waters cited are not prone to large swells, but I have been in a water
taxi late at night and seen the radar pick out logs and other debris on the
water. It was overcast, poor visibility and moderately high wind at the
time.

Unfortunately, did not note manufacturer of unit.

surfnturf

"Doug Dotson" wrote in message
...
Maybe on a dead calm sea.

"Tom Dacon" wrote in message
...


The stuff is so low in the water that it can't be picked up by radar.
A
debris object would have to be nearly as large as your boat to set off
any
radar collision alarm..


This hasn't been my experience. In calm inner waters, such as the inland
passage along the west coast of Canada, radar when set to short range
can
commonly pick up a log or the top of a deadhead if it breaks the water's
surface, and it will routinely pick up a seagull standing on top of it.
In
fact, I've even seen it pick up the riffles from a tidal rip.

Tom Dacon