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maxlynn
 
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Default Questions on Radar


"Rosalie B." wrote in message
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"Ric" wrote:

I'd get the same make of radar as your chartplotter. Partly because the
knobology will be the same between the two instruments, and partly

because
they will talk to each other better. I have a Raymarine chartplotter and
bought a Furuno radar, and they won't properly share NMEA data - both
manufacturers blame the other half for the incompatibility. I bought

Furuno
because all my research showed that they are fabulously reliable (and my
personal experience has confirmed this) but I still wish I'd bought
Raymarine because of the knobology and compatibility issues.


We don't have a chart plotter, and the only things I have 'talking' to
each other are the GPS and the computer charting system. I don't have
the GPS working with the autopilot or the radar. I don't have the
radar working with the GPS or anything else - and I don't intend to do
so. Maybe I'm a Luddite, but for what we do, I don't see the need for
it. The autopilot steers much better than I do, but with all the
non-charted obstacles in coastal waters we can't set it and forget it
anyway.


I wouldn't think you are a Luddite, but you should think long and hard about
not feeding the GPS' NMEA output to the radar. At the very least, it
serves as a repeater for much of that data. And, as someone else noted, it
provides the lollipop display of the location of your next waypoint on the
radar screen. This is very useful information.


I'm not sure I know what a chart plotter is, except that it seems like
a lower tech kind of computer charting ???

I have a sailing boat, and I have my radar inside. It would be much more
useful on the outside, but the downside is that it would be exposed to

sun,
salt and getting wacked by ropes etc. I have on my list of things to do

to

If I was exposed to sun, salt and getting wacked by ropes in our
cockpit, I wouldn't go there either. AFA sun goes - I know too many
people who can't go out in their boats anymore because of skin cancer.
I don't want to be wacked by ropes either. Fortunately I'm waterproof
and the salt will wash off.

make a swinging arm that in is parked position holds the radar on the

inside
above the chart-table, but on its swung position holds the radar in the
companionway where I could see it from the helm.


I've seen this done a couple of times. Seems to work well, although I
guess you'd have to have a remote so change scale etc.


Depends on where you are sitting. We find that about 90 percent of our
radar use is when we are on autopilot, and it is cold and/or foggy and/or
dark, so that the favorite place to be is cozied up behind the dodger,
peeking about at the radar and whatever is visible forward. So we favor the
companionway or cockpit bulkhead as the favored location.

Stick the radar halfway up the mast. If you have a rear gantry it is

better
there, especially if gimballed. The nominal range of the smaller Furuno,
Raymarine and JRC radars is about 12 miles but in practise they are only
really reliable over about 5 miles. They will pick out land over a

greater
distance, but that is not really helpful. Ships are the danger, and they

are
only really visible at about 4-5 miles.



grandma Rosalie