Ghost
 

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe

Ghost
 

"Joe" wrote in message
om...
If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.

I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.



Regards

Donal
--

Ghost
 

Donal wrote:
"Joe" wrote in message
om...

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points


Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.

I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.



Regards

Donal

That may be one of the answers, but it is not the only answer .....
operator error and atmospherics, can also cause a "ghost".

otn

Ghost
 

"Donal" wrote in message ...
"Joe" wrote in message
om...
If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.

Where did you get that line of BS Donal? Is that a yachtmaster physic explaination?



I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.


Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal strait?

Joe



Regards

Donal
--

Ghost
 

Joe wrote:

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?


It is a "false" radar return due to the return path delay to the most
recent pulse not being c/d where c is the local speed of light and d
distance to the apparent target. This can arise from anything which
alters propagation and therefore the effective c between transmitter and
reflector. Ghost images have sometimes been incorrectly ascribed to
birds and rain but in fact these are usually real returns and not ghosts.

Cheers

Ghost
 

Joe wrote:

"Donal" wrote in message ...

"Joe" wrote in message
.com...

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.


Where did you get that line of BS Donal? Is that a yachtmaster physic explaination?



I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.



Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal strait?

Joe


You're saying a ghost is real?

Good lord.

Cheers

Ghost
 

A ghost image is a false image moving in parallel
of a real object being tracked. They tend to be
more of an arc shape or fuzzy in shape compared
to the sharper image or a real object.

They are formed by the signal taking a longer
path to the object. Most commonly from a reflection
off some other part of a larger vessel. This could
change the beam shape of the radar. Sometimes
you can get echos off thunderstorms.

Or perhaps your optical coupler has shorted out. grin


Joe wrote

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe

Ghost
 

Nav wrote in message ...
Joe wrote:

"Donal" wrote in message ...

"Joe" wrote in message
.com...

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.


Where did you get that line of BS Donal? Is that a yachtmaster physic explaination?



I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.



Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal strait?

Joe


You're saying a ghost is real?

It can be.

Joe




Good lord.

Cheers

Ghost
 

"Bart Senior" wrote in message . net...
A ghost image is a false image moving in parallel
of a real object being tracked. They tend to be
more of an arc shape or fuzzy in shape compared
to the sharper image or a real object.

They are formed by the signal taking a longer
path to the object. Most commonly from a reflection
off some other part of a larger vessel. This could
change the beam shape of the radar. Sometimes
you can get echos off thunderstorms.

Or perhaps your optical coupler has shorted out. grin

Sorry Bart,

You have over complicated and generalized a ghost. You are partly
correct but.....not completly correct.

Joe





Joe wrote

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe

Ghost
 

Joe wrote:
Nav wrote in message ...

Joe wrote:


"Donal" wrote in message ...


"Joe" wrote in message
le.com...


If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to give
me some points!


A Ghost is the image that appears on your radar screen as a result of the
signal that bounced off the real target, and then bounced off of your boat
before being bounced off the real target again.


Where did you get that line of BS Donal? Is that a yachtmaster physic explaination?




I know that you weren't able to understand that explanation - so I'll have
another go. A Ghost is a false image on your Radar screen.



Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal strait?

Joe


You're saying a ghost is real?


It can be.


Boo!

Cheers

Ghost
 

"Joe" wrote in message
om...
"Donal" wrote in message
...
"Joe" wrote in message
om...
If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to
give
me some points!


A Ghost is the image that appears on your radar screen as a result of
the
signal that bounced off the real target, and then bounced off of your
boat
before being bounced off the real target again.

Where did you get that line of BS Donal? Is that a yachtmaster physic
explaination?

No it isn't. I got it from the manual that came from my Radar. However, I
have noticed that somebody else has said that the signal may have bounced
off a third party to produce the ghost. I agree with them.




I know that you weren't able to understand that explanation - so I'll
have
another go. A Ghost is a false image on your Radar screen.


Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal
strait?

Go on Joe .... set me strait.

Regarghds


Donal
--

Ghost
 

"Donal" wrote in message ...
"Joe" wrote in message
om...
"Donal" wrote in message
...
"Joe" wrote in message
om...
If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Good for 1.5 asa points

Joe, I'm only answering because I know that it will really hurt you to
give
me some points!


A Ghost is the image that appears on your radar screen as a result of
the
signal that bounced off the real target, and then bounced off of your
boat
before being bounced off the real target again.

Where did you get that line of BS Donal? Is that a yachtmaster physic
explaination?

No it isn't. I got it from the manual that came from my Radar. However, I
have noticed that somebody else has said that the signal may have bounced
off a third party to produce the ghost. I agree with them.




I know that you weren't able to understand that explanation - so I'll
have
another go. A Ghost is a false image on your Radar screen.


Thats not correct either.

Anyone else wanna try to provide the correct answer before I set Donal
strait?

Go on Joe .... set me strait.

Regarghds


Ok Its a radar signal thats source can not be readily determined. Or
its a signal that is not repeated on each and every sweep that is made
by your radar.

Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.

You should write your radar mfg. and let them know the true meaning of
a ghost, they assume that a ghost is not a real target and in doing so
they might get someone hurt if they are running at high speeds. Often
huge stumps return ghost signals as they bob in and out of the water.

Joe



Donal
--

Ghost
 

Joe wrote:

Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.



So what is an radar angel?

Cheers

Ghost
 

Joe wrote:


Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.

Prime example of "One man's ghost" is another man's intermittent target.
I wouldn't call any of you wrong, once I understood what your
description was, though your above does not fall into MY description of
"ghost" even though I can see where it might from your perspective.


otn

Ghost
 

Bart Senior wrote

Source for next bit was Dutton's.

A ghost image is a false image moving in parallel
of a real object being tracked. They tend to be
more of an arc shape or fuzzy in shape compared
to the sharper image or a real object.

My interpretation based on my radar training.

They are formed by the signal taking a longer
path to the object. Most commonly from a reflection
off some other part of a larger vessel. This could
change the beam shape of the radar. Sometimes
you can get echos off thunderstorms.

This next bit was a joke. An optical coupler can't be shorted out
because it's is a card with holes cut in and and blocks
or passes light to a sensor.

Or perhaps your optical coupler has shorted out. grin

Joe wrote

If you see a ghost on radar are you seeing boobsie?

If not what are you seeing, and how would you define a ghost?

Ghost
 

"otnmbrd" wrote in message
ink.net...


Joe wrote:


Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.

Prime example of "One man's ghost" is another man's intermittent target.
I wouldn't call any of you wrong, once I understood what your
description was, though your above does not fall into MY description of
"ghost" even though I can see where it might from your perspective.

Otn,
Your post was so polite, that Joe might be under the false impression that
you agree with him.

I trust that my clarification will prevent lurkers from comimg to the false
conclusion that you don't know what you are talking
about.



Regards


Donal
--

Ghost
 

Donal wrote:

Joe wrote:


Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.

Prime example of "One man's ghost" is another man's intermittent target.
I wouldn't call any of you wrong, once I understood what your
description was, though your above does not fall into MY description of
"ghost" even though I can see where it might from your perspective.


Otn,
Your post was so polite, that Joe might be under the false impression that
you agree with him.

I trust that my clarification will prevent lurkers from comimg to the false
conclusion that you don't know what you are talking
about.

G As Stated, I wouldn't call Joe's "ghost" a "ghost", but I've become
a firm believer in "One man's fwd spring, is another man's after
spring", as I've heard many knowledgeable people use different
definitions to describe this phenomena.
For my money, the greatest cause of "ghost" is "operator error", i.e. to
much gain/intensity for the given range scale setting, though I would
also include odd ball targets where none exist due to any number of
possible causes .... keep in mind, I'm an operator not a technician,
though Gawd help the Techie that tries to tell me that some conditions
are normal for radar in general or a specific radar, when I know better.
As for people coming to false conclusions about the substance of what I
might say in a thread, hey, I'm good, but I'm not perfect ....show me
the errors.

otn

Ghost
 

"Donal" wrote in message ...
"otnmbrd" wrote in message
ink.net...


Joe wrote:


Sometimes a ghost is a reflection that you and nav describe, sometimes
it is an object that is so low or has such a lousy return that it only
shows up when you and the target or on the crest of waves or when the
target is ata angle to reflect your signal. So it may indeed be a real
target but when it keeps disappearing and returning from the scope it
is called a ghost.

Prime example of "One man's ghost" is another man's intermittent target.
I wouldn't call any of you wrong, once I understood what your
description was, though your above does not fall into MY description of
"ghost" even though I can see where it might from your perspective.

Otn,
Your post was so polite, that Joe might be under the false impression that
you agree with him.

I trust that my clarification will prevent lurkers from comimg to the false
conclusion that you don't know what you are talking
about.



Regards


Donal
--

Hey Donal, Do not take my word for it, look it up in Bowditch the
American pratical navigator.

Joe

Ghost
 

"Joe" wrote in message
om...
Hey Donal, Do not take my word for it, look it up in Bowditch the
American pratical navigator.

What is Bowditch?


Regards


Donal
--

Ghost
 

Donal wrote:
What is Bowditch?

Now that is funny!
--
jlrogers±³©
Never date a woman you can hear ticking. - Mark Patinkin

Eschew Obfuscation.

Ghost
 

"Donal" wrote in message ...
"Joe" wrote in message
om...
Hey Donal, Do not take my word for it, look it up in Bowditch the
American pratical navigator.

What is Bowditch?

Sheeeeeeeezzzzzzeeee.

You should be asking... Who is Bowditch?

You Brits are WAY behind the times.

Joe


Regards


Donal
--

Ghost
 

"Joe" wrote in message
om...
"Donal" wrote in message
...
"Joe" wrote in message
om...
Hey Donal, Do not take my word for it, look it up in Bowditch the
American pratical navigator.

What is Bowditch?

Sheeeeeeeezzzzzzeeee.

You should be asking... Who is Bowditch?

You Brits are WAY behind the times.

Oh dear, Joe. As always, you have the wrong end of the stick.
I'm *not* a Brit.

BTW .... everybody else in the newsgroup knows my nationality!!!!



Regards


Donal
--



Regards


Donal
--

Ghost
 

"Donal" wrote in message ...
"Joe" wrote in message
om...
"Donal" wrote in message
...
"Joe" wrote in message
om...
Hey Donal, Do not take my word for it, look it up in Bowditch the
American pratical navigator.

What is Bowditch?

Sheeeeeeeezzzzzzeeee.

You should be asking... Who is Bowditch?

You Brits are WAY behind the times.

Oh dear, Joe. As always, you have the wrong end of the stick.
I'm *not* a Brit.

BTW .... everybody else in the newsgroup knows my nationality!!!!


Oh Im sorry for the insult Donal.

What country do you live in?

Regards,
Joe



Regards


Donal
--



Regards


Donal
--

Ghost
 

"Joe" wrote in message
om...
"Donal" wrote in message
...
Oh dear, Joe. As always, you have the wrong end of the stick.
I'm *not* a Brit.

BTW .... everybody else in the newsgroup knows my nationality!!!!


Oh Im sorry for the insult Donal.

No offence taken.


What country do you live in?


England.


Regards


Donal
--