GPS - Bluechart glitch or 76 Cx, Unusual observation on a Bluchart map

Author

Bluechart glitch or 76 Cx, Unusual observation on a Bluchart map

MajBach

2007-04-29, 10:33 pm

Hi all. I recently purchased a 76 Cx and pretty much happy with it for
the most part. I've purchased MetroGuide for Canada and I also have
Navigator or whichever is the free one - I find it difficult to keep
up. Anyway, I recently purchased Bluechart Americas v8.5 and I am
noticing what appears to be a glitch. First thing I did was add some
maps from Bluechart to my existing maps from Mapsource etc. and
uploaded them into the unit. There was one particular spot I was
anxious to look at, specifically CA 273097. Well that's what the map
is called when you hover the mouse over it on MapSource, but when you
select it, it is called CA2202 (E) 20000 in the left column. I
actually selected many maps of that region when I uploaded them.
However, when I viewed them on the GPS, the northern area of the above
map appeared fine - displaying all the detail like it was displayed on
the PC. However, when I zoomed in with the cursor placed within that
map, the display information changed-most of the detail was lost and
the background went from white to blue. But this was only for the
northernmost tip of that map, 95% of the map still was normal. What
struck me as odd was the fact that the detail IS there as I could
briefly see it as I scrolled the map or zoomed in on an adjacent one,
but as soon as I got close, it went funky. When I zoom back out, that
particular area remains blue, unlike it appeared before I zoomed in.
Thinking it might have something to do with other maps, setting etc, I
removed all POIs, waypoints and other maps so that only that one map
was in the unit-no change. At no point does it look like this on the
computer. the bottom line is, I cannot see the detail in this small
region of the map - all other areas seem fine, including other map
areas that overlap. The detail is visible just fine via Mapsourse. Any
ideas?

Also, I have a 1 gig card in the unit. Is there a way to merely add to
the maps that I have previously uploaded to the GPS instead of having
to download them from the unit, add a map then upload again? It's kind
of time consuming to add a 2 meg map to 600 meg worth already
uploaded(40 minutes).

BTW, if anyone can tell me how to determine the revision dates of
various maps, such as MetroGuide or Navigator etc. much appreciated. I
would like to know how current they all are.

Ben Kaufman

2007-04-30, 7:33 am

On 29 Apr 2007 19:55:59 -0700, MajBach <majbach@sympatico.ca> wrote:

>Hi all. I recently purchased a 76 Cx and pretty much happy with it for
>the most part. I've purchased MetroGuide for Canada and I also have
>Navigator or whichever is the free one - I find it difficult to keep
>up. Anyway, I recently purchased Bluechart Americas v8.5 and I am
>noticing what appears to be a glitch. First thing I did was add some
>maps from Bluechart to my existing maps from Mapsource etc. and
>uploaded them into the unit. There was one particular spot I was
>anxious to look at, specifically CA 273097. Well that's what the map
>is called when you hover the mouse over it on MapSource, but when you
>select it, it is called CA2202 (E) 20000 in the left column. I
>actually selected many maps of that region when I uploaded them.
>However, when I viewed them on the GPS, the northern area of the above
>map appeared fine - displaying all the detail like it was displayed on
>the PC. However, when I zoomed in with the cursor placed within that
>map, the display information changed-most of the detail was lost and
>the background went from white to blue. But this was only for the
>northernmost tip of that map, 95% of the map still was normal. What
>struck me as odd was the fact that the detail IS there as I could
>briefly see it as I scrolled the map or zoomed in on an adjacent one,
>but as soon as I got close, it went funky. When I zoom back out, that
>particular area remains blue, unlike it appeared before I zoomed in.
>Thinking it might have something to do with other maps, setting etc, I
>removed all POIs, waypoints and other maps so that only that one map
>was in the unit-no change. At no point does it look like this on the
>computer. the bottom line is, I cannot see the detail in this small
>region of the map - all other areas seem fine, including other map
>areas that overlap. The detail is visible just fine via Mapsourse. Any
>ideas?
>
>Also, I have a 1 gig card in the unit. Is there a way to merely add to
>the maps that I have previously uploaded to the GPS instead of having
>to download them from the unit, add a map then upload again? It's kind
>of time consuming to add a 2 meg map to 600 meg worth already
>uploaded(40 minutes).
>
>BTW, if anyone can tell me how to determine the revision dates of
>various maps, such as MetroGuide or Navigator etc. much appreciated. I
>would like to know how current they all are.

Just curious if you posed these questions to Garmin tech support?

Ben

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