cmap magnetic variation
 

Can someone please tell me where to find the magnetic variation on
cmap, I can find the tidal info and everything else but I can't find
the variation?

Any help would be appreciated.

cmap magnetic variation
 

In article
,
wrote:

Can someone please tell me where to find the magnetic variation on
cmap, I can find the tidal info and everything else but I can't find
the variation?

Any help would be appreciated.

It should be "Built-in" to the software that calculates Bearings to
Waypoints, and Objects. They wouldn't necessarily, actually "Print"
it on the screen, as anytime you ask for a "Bearing" to something
it should show either, a "True", or "Magnetic" Bearing, as determined
by the Selected Preference.

--
Bruce in alaska
add path after fast to reply

cmap magnetic variation
 

On Apr 6, 4:00*am, Bruce in alaska wrote:
In article
,

wrote:
Can someone please tell me where to find the magnetic variation on
cmap, I can find the tidal info and everything else but I can't find
the variation?

Any help would be appreciated.

It should be "Built-in" to the *software that calculates Bearings to
Waypoints, and Objects. *They wouldn't necessarily, actually "Print"
it on the screen, as anytime you ask for a "Bearing" to something
it should show either, a "True", or "Magnetic" Bearing, as determined
by the Selected Preference.

--
Bruce in alaska
add path after fast to reply

Thanks Bruce but I now can't find where to set that preference, its
probably right under my nose, I can't find it in the config settings
or in the legend. Can you point me in the right direction?

Thanks

Steve

cmap magnetic variation
 

cmap magnetic variation
 

On Apr 6, 6:07*pm, "Dennis Pogson"
wrote:
wrote:
On Apr 6, 4:00 am, Bruce in alaska wrote:
In article
,

wrote:
Can someone please tell me where to find the magnetic variation on
cmap, I can find the tidal info and everything else but I can't find
the variation?

Any help would be appreciated.

It should be "Built-in" to the software that calculates Bearings to
Waypoints, and Objects. They wouldn't necessarily, actually "Print"
it on the screen, as anytime you ask for a "Bearing" to something
it should show either, a "True", or "Magnetic" Bearing, as determined
by the Selected Preference.

--
Bruce in alaska
add path after fast to reply

Thanks Bruce but I now can't find where to set that preference, its
probably right under my nose, I can't find it in the config settings
or in the legend. *Can you point me in the right direction?

Thanks

Steve

Surely it's built into your GPS, which is connected to the software?

Dennis.- Hide quoted text -

- Show quoted text -

I was hoping to be able to find out the magnetic variation when doing
route planning prior to passages when i don't normally have the gps
turned on or hooked up to the computer. The variation is normally
stated on paper charts so I was thinking it should be somewhere on
cmap?

cmap magnetic variation
 

cmap magnetic variation
 

On Apr 6, 2:37 am, wrote:
I was hoping to be able to find out the magnetic variation when doing
route planning prior to passages when i don't normally have the gps
turned on or hooked up to the computer. The variation is normally
stated on paper charts so I was thinking it should be somewhere on
cmap?

Kinda OT but you could try http://www.ngdc.noaa.gov/wist/magfield.jsp.
There are some other tools if you look around the area. There's also
horrible code which looks like it's been translated from FORTRAN to C
by robot if you want to roll you're own. I don't know what chart
software you are using to read your C-Map database but my feeling is
that the db itself doesn't include variation data unless there is an
anomaly. AFIK, most navigation programs that convert between T&M use
general code like the stuff NOAA gives away and they may or may not
provide a user interface for it.

-- Tom.