He can't read the radar screen... he said so himself. He claims it confuses
him.... so he turns it off when he gets lost and uses the "several passes"
technique.

CM

"Simple Simon" wrote in message
...
| And you, even if you could envision it in your mind's eye,
| have no paper charts to compare the radar image to.
|
| Hooooo Hah!
|
| S.Simon - a Captain who knows a fraud when he sees one
|
|
| "Bobsprit" wrote in message
...
| But radar is different from a paper chart
|
| A major breakthrough for Neal, folks!!!
|
|
| Bwahahahaha!
|
| RB
|
|

So perhaps you or Neal can explain to everyone how the horizontal beam width affect the
image.

-jeff


Capt. Mooron wrote:
Most people I've seen either find a radar image intuitively correct
to what they see around them ... or they don't. I knew immediately
what I was looking at on the first radar image I saw. I can
interpolate between radar, air photo and chart in an instant. I
mentally compensate for differences in scale and orientation. Maybe
I'm one of the lucky few... but I assumed everyone had this ability
to some extent.

CM

"Simple Simon" wrote in message
...

But radar is different from a paper chart because
a paper chart does not foreshorten the view while
radar does. Radar is really no different than a
looking at something with eyes that use radio
waves instead of light waves

Our eyes use light and when we see a hundred
yards of water at a distance of a quarter mile this
hundred yards of water looks a helluva lot shorter
than the same hundred yards right off our bow.

Radar 'sees' thing the same way so one must
extrapolate this information mentally in order
to match it with a chart of the same area.

It would be much the same as equating a gnomic
projection with a Mercator projection but backwards
if looking north on a Mercator.

See what I mean? But the point is the majority
of people can't even imagine such differences
let alone work with them.

This is what I mean by spatial comprehension.

S.Simon - a sailboat Captain who's superior to any and all motorboat
Captains

"Capt. Mooron" wrote in message
...
Generally I find that women are at a loss when it comes to spatial
comprehension. A man will usually automatically know the extended
limits of an automobile when he sits in one. Women depend on
mirrors and the visual depth of field at a specific spot to
determine this. This is one of the reasons why women generally do
not back into a parking space... while men prefer to. I say this is
a general trait.... I know of women who are very good with spatial
interpretation.

If you look at the radar screen as a chart... it is easier to
resolve the image and blend it to the area around you. Just keep in
mind that often you only view the proximal reflected surface of any
object. The "chart" on a radar screen is always oriented to the
line of the vessel and bearing is always relative unless a fluxgate
compass or GPS input is available. In a day or two I could easily
have you running with a full comprehension of radar... at least as
well as anyone else. Tuning radar is no problem....

CM

"Simple Simon" wrote in message
...


I've met many people who cannot extrapolate a land map
of an area they are familiar with much less be able to relate
to a nautical chart. If tests were given for this type of relating
a graphical representation to geography I bet you'd be
apalled at the numbers of folks who simply can't relate.

Bobsprit is probably one of these chart challenged people.

Simple things like basic orientation of the map while they
look at it leaves them at a loss. A radar display is even
more of an alien representation that a paper chart. Is the
display 'heads up' or "oriented north" for instance is more
than many people can cope with. Spatial relationships
and representative distances with respect to scale are
concepts many simply cannot fathom. I've only used
radar a couple of times and found it did not convey
much information at all other than skewed and foreshortened
spatial relationships that were difficult to stretch out into
geographical reality in my mind - a mind which excels
at spatiality.

I can see where practice, practice, practice and a mind
that can understand is vital for a radar operator. This is
yet another reason I think there should be a navigator at
the helm of large ships. Let the navigator navigator - let
the Captain steer according to input from the navigator.

S.Simon - a Captain who knows how things work




"Capt. Mooron" wrote in message
...

"Shen44" wrote in message

Radar is an aid to navigation, that is well learned if one has
one,
but
not as
important to learn for beginners, as some of the other basics,
such as compass, chart work, etc..
Contrary to what some may think, radar is not something you can
just
turn
on,
for the first time, and be instantly familiar and competent with
it's usage. I have seen any number of people using it on a
fairly regular
basis,
who
have
problems tuning (and sometimes detuning) for best picture, then
equating that picture to their charts or vessel traffic around
them.
Without knowing the basics of relative motion and how to plot
targets,
you
can
easily get yourself into as much trouble as you can avoid.

Maybe these people are the same ones with spatial difficulties. I
haven't seen anyone that has had a problem understanding a radar
image... tuning radar is a little more complicated ... but not
out of the realm of the newbie.

While I concur that Basic Navigation is primary obstacle to
overcome... a radar in use to confirm your plots and verify
relative bearings is perfectly fine.

The days of high tech being utilized only on large ships is over.
Navigational instrumentation is now available to the layman and
the general population's ability to embrace technology has
increased dramatically.

CM

I can interpolate between radar,
air photo and chart in an instant.

BWAHAHAHAHAHAHAHAA!!!

This is just TOO sad and funny all at once! Can you also cross your eyes and
eat a donut?
Bwahahahaaha!

RB

He can't read the radar screen... he said so himself. He claims it confuses
him.

I dare you to show the post where I claimed the above!

RB

"Capt. Mooron" wrote in message ...
Most people I've seen either find a radar image intuitively correct to what
they see around them ... or they don't. I knew immediately what I was
looking at on the first radar image I saw. I can interpolate between radar,
air photo and chart in an instant. I mentally compensate for differences in
scale and orientation. Maybe I'm one of the lucky few... but I assumed
everyone had this ability to some extent.

I would say you assumed incorrectly. You, like me,
are among the lucky few who are endowed with an
advanced brain that works like brains were designed
to work before they becamed dulled and prorammed
by MTV and liberalism.

S.Simon

"Bobsprit" wrote in message

| I dare you to show the post where I claimed the above!

Oh Boo Hooo Hooo cried Bob!

Bwahahahahahahahahahaaa!!!

.....here sport have a towel and dry off...[Flick]..[snap]... Ha Ha Ha Ha

CM

Jeff Morris wrote:
So perhaps you or Neal can explain to everyone how the horizontal
beam width affect the image.

I would imagine that it would have an effect not unlike ghosting.


--
Wally
www.makearatherlonglinkthattakesyounowhere.com
Things are always clearer in the cold, post-upload light.

What is ghosting?
-j

Wally wrote:
Jeff Morris wrote:
So perhaps you or Neal can explain to everyone how the horizontal
beam width affect the image.

I would imagine that it would have an effect not unlike ghosting.

| I dare you to show the post where I claimed the above!

Oh Boo Hooo Hooo cried Bob!

BUSTED and caught in another lie!

RB

"Bobsprit" wrote in message
...
| I can interpolate between radar,
| air photo and chart in an instant.
|
| BWAHAHAHAHAHAHAHAA!!!
|
| This is just TOO sad and funny all at once! Can you also cross your eyes
and
| eat a donut?
| Bwahahahaaha!

Since I've done cartography and airphoto interpolation as well as land based
navigation to locate and test geological source deposits as a living...
it's come in as a handy skill.

I've never tried to cross my eyes and eat a dounut Bob... it must be a New
York thing.